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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width,initial-scale=1" />
<title>LUMEN — Earn in the Agent Economy · A working concept</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght,SOFT@0,9..144,300..900,0..100;1,9..144,300..900,0..100&family=JetBrains+Mono:ital,wght@0,300..800;1,300..800&family=Inter+Tight:ital,wght@0,200..900;1,200..900&display=swap" rel="stylesheet">
<style>
/* ────── tokens ────── */
:root{
--ink:#0a0908;
--ink-2:#13110e;
--ink-3:#1a1714;
--paper:#ece6d4;
--paper-2:#c9c2ad;
--paper-dim:#807968;
--rule:#2d2a25;
--rule-2:#3d3a32;
--amber:#ff9f1c;
--ember:#ff6b1a;
--cyan:#5cf3ff;
--green:#84e4a1;
--magenta:#ff2d92;
--serif:"Fraunces",ui-serif,Georgia,serif;
--mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
--sans:"Inter Tight",ui-sans-serif,system-ui,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
background:var(--ink);
color:var(--paper);
font-family:var(--sans);
font-size:15px;
line-height:1.55;
font-feature-settings:"ss01","cv11";
-webkit-font-smoothing:antialiased;
overflow-x:hidden;
background-image:
radial-gradient(1200px 600px at 90% -10%, rgba(255,159,28,.05), transparent 60%),
radial-gradient(900px 500px at -10% 30%, rgba(92,243,255,.04), transparent 60%);
}
::selection{background:var(--amber);color:var(--ink)}
a{color:inherit;text-decoration:none;border-bottom:1px solid var(--rule-2)}
a:hover{color:var(--amber);border-color:var(--amber)}
/* ────── layout primitives ────── */
.wrap{max-width:1320px;margin:0 auto;padding:0 32px}
.rule{height:1px;background:var(--rule);margin:0}
.rule.thick{height:2px;background:var(--paper-2)}
.rule.dashed{background:none;border-top:1px dashed var(--rule-2);height:0}
.small-caps{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--paper-dim)}
.kicker{font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--amber)}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.serif{font-family:var(--serif)}
.mono{font-family:var(--mono)}
/* ────── masthead ────── */
.masthead{border-bottom:1px solid var(--rule);background:var(--ink)}
.masthead-inner{
display:grid;
grid-template-columns:1fr auto 1fr;
align-items:center;
padding:14px 32px;
gap:24px;
font-family:var(--mono);
font-size:11px;
letter-spacing:.16em;
text-transform:uppercase;
color:var(--paper-dim);
}
.masthead .left{justify-self:start}
.masthead .right{justify-self:end;display:flex;gap:18px;align-items:center}
.masthead .right .live{display:flex;gap:8px;align-items:center;color:var(--paper)}
.masthead .right .live .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);animation:pulse 1.4s ease-in-out infinite}
.wordmark{
font-family:var(--serif);
font-weight:300;
font-size:30px;
letter-spacing:.34em;
color:var(--paper);
font-feature-settings:"ss01";
}
@keyframes pulse{
0%,100%{opacity:1;transform:scale(1)}
50%{opacity:.4;transform:scale(.7)}
}
/* ────── ticker tape ────── */
.ticker{
border-bottom:1px solid var(--rule);
background:linear-gradient(to right,var(--ink) 0%,var(--ink-2) 50%,var(--ink) 100%);
overflow:hidden;
position:relative;
}
.ticker::before,.ticker::after{
content:"";position:absolute;top:0;bottom:0;width:80px;z-index:2;pointer-events:none;
}
.ticker::before{left:0;background:linear-gradient(to right,var(--ink),transparent)}
.ticker::after{right:0;background:linear-gradient(to left,var(--ink),transparent)}
.tape{
display:flex;
width:max-content;
animation:slide 90s linear infinite;
padding:12px 0;
font-family:var(--mono);
font-size:12px;
letter-spacing:.04em;
}
.tape-item{padding:0 22px;color:var(--paper-2);white-space:nowrap;display:inline-flex;gap:10px;align-items:center}
.tape-item .agent{color:var(--paper)}
.tape-item .arrow{color:var(--paper-dim)}
.tape-item .sats{color:var(--amber)}
.tape-item .ms{color:var(--cyan)}
.tape-item .sep{color:var(--rule-2);margin:0 4px}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
/* ────── hero ────── */
.hero{padding:80px 0 100px;border-bottom:1px solid var(--rule);position:relative}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:end}
.hero h1{
font-family:var(--serif);
font-weight:300;
font-size:clamp(48px,8vw,108px);
line-height:.92;
letter-spacing:-.022em;
margin:18px 0 0;
font-variation-settings:"opsz" 144,"SOFT" 30;
color:var(--paper);
}
.hero h1 em{font-style:italic;color:var(--amber);font-weight:300}
.hero h1 .gloss{color:var(--paper-2)}
.hero .dek{
font-family:var(--serif);
font-size:22px;
line-height:1.42;
color:var(--paper-2);
font-weight:300;
max-width:480px;
border-left:2px solid var(--amber);
padding-left:22px;
}
.hero .stats{
margin-top:44px;
display:grid;
grid-template-columns:repeat(4,1fr);
gap:0;
border-top:1px solid var(--rule);
border-bottom:1px solid var(--rule);
}
.stat{padding:18px 22px;border-right:1px solid var(--rule)}
.stat:last-child{border-right:none}
.stat .v{font-family:var(--serif);font-size:34px;font-weight:300;line-height:1;color:var(--paper);font-variant-numeric:tabular-nums}
.stat .v .unit{font-family:var(--mono);font-size:12px;color:var(--paper-dim);margin-left:4px;letter-spacing:.1em}
.stat .l{margin-top:8px;font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-dim)}
.stat.amber .v{color:var(--amber)}
.stat.cyan .v{color:var(--cyan)}
/* ────── section header ────── */
.section{padding:96px 0;border-bottom:1px solid var(--rule)}
.section-head{display:grid;grid-template-columns:auto 1fr auto;gap:32px;align-items:baseline;margin-bottom:48px}
.section-head .num{color:var(--amber);font-size:13px;letter-spacing:.16em}
.section-head h2{
font-family:var(--serif);
font-weight:300;
font-size:clamp(34px,4.5vw,56px);
letter-spacing:-.018em;
margin:0;
color:var(--paper);
font-variation-settings:"opsz" 96,"SOFT" 50;
}
.section-head h2 em{font-style:italic;color:var(--paper-2)}
.section-head .meta{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-dim);text-align:right}
/* ────── concept three-col ────── */
.three-col{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:0;
border-top:1px solid var(--rule);
border-bottom:1px solid var(--rule);
}
.three-col .col{padding:36px 28px;border-right:1px solid var(--rule)}
.three-col .col:last-child{border-right:none}
.three-col h3{
font-family:var(--serif);
font-weight:300;
font-size:28px;
line-height:1.1;
margin:14px 0 14px;
letter-spacing:-.01em;
color:var(--paper);
}
.three-col h3 em{color:var(--amber);font-style:italic}
.three-col p{color:var(--paper-2);font-size:15px;line-height:1.62;margin:0}
.three-col .label{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--paper-dim)}
/* ────── §01 flow ────── */
.flow-wrap{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
.flow-intro p{color:var(--paper-2);font-size:17px;line-height:1.6;font-family:var(--serif);font-weight:300;margin:0 0 20px}
.flow-intro .scenario{
background:var(--ink-2);
border:1px solid var(--rule);
padding:20px 22px;
margin-top:28px;
}
.flow-intro .scenario .label{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--amber);margin-bottom:10px}
.flow-intro .scenario .body{font-family:var(--serif);font-size:17px;line-height:1.5;color:var(--paper)}
.flow-intro .scenario .body em{color:var(--cyan);font-style:normal;font-family:var(--mono);font-size:14px}
.flow-intro .play{
margin-top:28px;display:inline-flex;gap:14px;align-items:center;
padding:14px 22px;background:var(--amber);color:var(--ink);
font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
border:none;cursor:pointer;border-radius:0;font-weight:600;
transition:transform .15s ease, background .15s ease;
}
.flow-intro .play:hover{background:var(--paper);transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--amber)}
.flow-intro .play .tri{width:0;height:0;border-left:9px solid var(--ink);border-top:6px solid transparent;border-bottom:6px solid transparent}
.flow-steps{display:flex;flex-direction:column;gap:0;border:1px solid var(--rule);background:var(--ink-2)}
.step{
display:grid;
grid-template-columns:64px 1fr auto;
gap:24px;
padding:22px 26px;
border-bottom:1px solid var(--rule);
align-items:start;
position:relative;
transition:background .35s ease;
}
.step:last-child{border-bottom:none}
.step .marker{
width:36px;height:36px;border-radius:50%;
border:1px solid var(--rule-2);
display:flex;align-items:center;justify-content:center;
font-family:var(--mono);font-size:13px;color:var(--paper-dim);
background:var(--ink);
transition:all .35s ease;
}
.step .body .t{font-family:var(--serif);font-size:21px;font-weight:300;color:var(--paper);line-height:1.25;letter-spacing:-.01em}
.step .body .d{margin-top:6px;color:var(--paper-2);font-size:14px;line-height:1.55}
.step .body .d code{font-family:var(--mono);font-size:12.5px;color:var(--cyan);background:var(--ink);padding:1px 6px;border:1px solid var(--rule)}
.step .meta{
font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--paper-dim);
text-align:right;display:flex;flex-direction:column;gap:4px;align-items:flex-end;
white-space:nowrap;
}
.step .meta .price{color:var(--amber)}
.step .meta .ts{color:var(--paper-dim)}
.step.active{background:linear-gradient(90deg,rgba(255,159,28,.06),transparent 80%)}
.step.active .marker{border-color:var(--amber);color:var(--amber);background:rgba(255,159,28,.08);box-shadow:0 0 0 4px rgba(255,159,28,.08)}
.step.done .marker{border-color:var(--green);color:var(--green);background:rgba(132,228,161,.06)}
.step.done .marker::after{content:"✓"}
.step.done .marker .n{display:none}
/* ────── §02 console ────── */
.console{
display:grid;
grid-template-columns:minmax(0,4fr) minmax(0,5fr) minmax(0,4fr);
grid-template-rows:auto auto;
gap:20px;
}
.panel{
background:var(--ink-2);
border:1px solid var(--rule);
padding:0;
display:flex;flex-direction:column;
}
.panel-head{
display:flex;justify-content:space-between;align-items:center;
padding:12px 16px;border-bottom:1px solid var(--rule);
font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-dim);
}
.panel-head .live-dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan);animation:pulse 1.4s ease-in-out infinite;display:inline-block;margin-right:6px;vertical-align:middle}
.panel-body{padding:20px 18px;flex:1}
/* wallet */
.wallet .balance{font-family:var(--serif);font-size:54px;font-weight:300;line-height:1;color:var(--amber);letter-spacing:-.02em}
.wallet .balance .u{font-family:var(--mono);font-size:13px;color:var(--paper-dim);margin-left:8px;letter-spacing:.12em}
.wallet .sub{font-family:var(--mono);font-size:11px;color:var(--paper-dim);margin-top:8px;letter-spacing:.05em}
.wallet .row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed var(--rule);font-family:var(--mono);font-size:12px}
.wallet .row:last-child{border-bottom:none}
.wallet .row .l{color:var(--paper-2)}
.wallet .row .v{color:var(--paper);font-variant-numeric:tabular-nums}
.wallet .grid{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.wallet .chip{
border:1px solid var(--rule);
padding:10px 12px;
font-family:var(--mono);font-size:11px;color:var(--paper-2);
text-align:center;letter-spacing:.08em;
cursor:pointer;
}
.wallet .chip:hover{border-color:var(--amber);color:var(--amber)}
/* policy panel */
.policy .title{font-family:var(--serif);font-size:20px;font-weight:300;color:var(--paper);margin-bottom:8px}
.policy .sub{font-family:var(--mono);font-size:11px;color:var(--paper-dim);letter-spacing:.06em;margin-bottom:16px}
.policy .rule-row{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;padding:9px 0;border-bottom:1px dashed var(--rule);font-size:13px}
.policy .rule-row:last-child{border-bottom:none}
.policy .rule-row .k{font-family:var(--mono);font-size:11px;color:var(--paper-dim);letter-spacing:.06em;text-transform:uppercase}
.policy .rule-row .v{color:var(--paper);font-family:var(--mono);font-size:12.5px}
.policy .rule-row .v.amber{color:var(--amber)}
.policy .rule-row .v.cyan{color:var(--cyan)}
.policy .rule-row .toggle{
width:30px;height:16px;border:1px solid var(--rule-2);border-radius:9px;position:relative;background:var(--ink);
}
.policy .rule-row .toggle.on{background:rgba(132,228,161,.12);border-color:var(--green)}
.policy .rule-row .toggle::after{
content:"";position:absolute;top:1px;left:1px;width:12px;height:12px;border-radius:50%;background:var(--paper-dim);
transition:all .2s ease;
}
.policy .rule-row .toggle.on::after{left:15px;background:var(--green)}
/* feed */
.feed-list{display:flex;flex-direction:column;gap:0}
.feed-row{display:grid;grid-template-columns:60px 1fr auto;gap:12px;padding:11px 0;border-bottom:1px dashed var(--rule);align-items:center;font-family:var(--mono);font-size:12px}
.feed-row:last-child{border-bottom:none}
.feed-row .t{color:var(--paper-dim)}
.feed-row .who{color:var(--paper)}
.feed-row .who .arr{color:var(--paper-dim);margin:0 6px}
.feed-row .v{color:var(--amber);font-variant-numeric:tabular-nums}
.feed-row.in .v{color:var(--green)}
.feed-row.in .v::before{content:"+"}
.feed-row.out .v::before{content:"−"}
/* invoice */
.invoice-card{font-family:var(--mono);font-size:12px;line-height:1.7;color:var(--paper-2)}
.invoice-card .inv{
background:var(--ink);border:1px solid var(--rule);padding:14px 16px;
word-break:break-all;color:var(--cyan);font-size:11.5px;line-height:1.55;
letter-spacing:.02em;
}
.invoice-card .row{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px dashed var(--rule)}
.invoice-card .row:last-child{border-bottom:none}
.invoice-card .row .l{color:var(--paper-dim);text-transform:uppercase;letter-spacing:.1em;font-size:10.5px}
.invoice-card .row .v{color:var(--paper)}
.invoice-card .row.total .v{color:var(--amber);font-size:14px}
.invoice-card .status{
margin-top:14px;padding:10px 14px;border:1px solid var(--green);background:rgba(132,228,161,.05);
color:var(--green);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
display:flex;justify-content:space-between;align-items:center;
}
/* http panel */
.http{font-family:var(--mono);font-size:12.5px;line-height:1.7}
.http .req{color:var(--cyan)}
.http .res{color:var(--ember)}
.http .key{color:var(--paper-dim)}
.http .val{color:var(--paper)}
.http .comment{color:var(--paper-dim);font-style:italic}
.http .arrow{color:var(--rule-2)}
/* ────── §03 marketplace ────── */
.market{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
background:var(--ink-2);border:1px solid var(--rule);
padding:24px 24px 20px;display:flex;flex-direction:column;
transition:border-color .2s ease, transform .2s ease;
position:relative;
}
.card:hover{border-color:var(--amber);transform:translateY(-2px)}
.card .topline{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:10px}
.card .badge{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;padding:3px 8px;border:1px solid var(--rule-2);color:var(--paper-dim)}
.card .badge.ai{color:var(--cyan);border-color:var(--cyan)}
.card .badge.human{color:var(--magenta);border-color:var(--magenta)}
.card .badge.cache{color:var(--paper-2);border-color:var(--paper-dim)}
.card .id{font-family:var(--mono);font-size:11px;color:var(--paper-dim);letter-spacing:.08em}
.card h4{
font-family:var(--serif);font-size:30px;font-weight:300;margin:6px 0 4px;
letter-spacing:-.012em;line-height:1.05;color:var(--paper);
}
.card .blurb{color:var(--paper-2);font-size:13.5px;line-height:1.55;margin:10px 0 22px}
.card .stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;border-top:1px solid var(--rule);padding-top:14px;margin-top:auto}
.card .stats-row .k{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--paper-dim);text-transform:uppercase}
.card .stats-row .v{font-family:var(--mono);font-size:14px;color:var(--paper);margin-top:3px;font-variant-numeric:tabular-nums}
.card .stats-row .v.amber{color:var(--amber)}
.card .stats-row .v.cyan{color:var(--cyan)}
.card .rep{display:flex;align-items:center;gap:6px;margin-bottom:0;font-family:var(--mono);font-size:11px;color:var(--paper-dim);letter-spacing:.06em}
.card .rep .stars{color:var(--amber)}
.card .spark{height:28px;margin:14px 0 10px}
.card .pick{
margin-top:18px;padding:11px 14px;background:transparent;border:1px solid var(--rule-2);
color:var(--paper);font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
cursor:pointer;text-align:center;
}
.card.featured{border-color:var(--amber)}
.card.featured .pick{background:var(--amber);color:var(--ink);border-color:var(--amber);font-weight:700}
.card.featured::before{
content:"PICKED";position:absolute;top:-9px;right:18px;
background:var(--amber);color:var(--ink);font-family:var(--mono);font-size:10px;letter-spacing:.22em;padding:3px 9px;font-weight:700;
}
/* ────── §04 invoice anatomy ────── */
.anatomy{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:start}
.anatomy .left{font-family:var(--mono);font-size:13.5px;line-height:1.85}
.anatomy .left .block{
background:var(--ink-2);border:1px solid var(--rule);padding:22px 24px;margin-bottom:14px;
}
.anatomy .left .label{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--paper-dim);margin-bottom:10px}
.anatomy .left h-line{display:block;color:var(--paper)}
.anatomy .left .h{color:var(--paper-2)}
.anatomy .left .h .k{color:var(--paper-dim)}
.anatomy .left .h .v{color:var(--paper)}
.anatomy .left .h .v.cyan{color:var(--cyan)}
.anatomy .left .h .v.amber{color:var(--amber)}
.anatomy .left .h .v.ember{color:var(--ember)}
.anatomy .right{font-family:var(--serif);font-size:18px;line-height:1.55;color:var(--paper-2);font-weight:300}
.anatomy .right p{margin:0 0 22px}
.anatomy .right p:first-child::first-letter{
font-family:var(--serif);float:left;font-size:72px;line-height:.85;padding:6px 10px 0 0;color:var(--amber);font-weight:300;
}
.anatomy .right strong{color:var(--paper);font-weight:500;font-style:italic}
/* ────── §05 builder ────── */
.builder{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.code{
background:var(--ink-2);border:1px solid var(--rule);
font-family:var(--mono);font-size:13px;line-height:1.65;
}
.code .head{
display:flex;justify-content:space-between;align-items:center;
padding:12px 18px;border-bottom:1px solid var(--rule);
font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--paper-dim);
}
.code .head .tabs{display:flex;gap:14px}
.code .head .tab{color:var(--paper-dim)}
.code .head .tab.on{color:var(--amber)}
.code pre{margin:0;padding:22px 22px 26px;overflow-x:auto;color:var(--paper-2)}
.code .c{color:var(--paper-dim);font-style:italic}
.code .k{color:var(--magenta)}
.code .s{color:var(--green)}
.code .n{color:var(--amber)}
.code .f{color:var(--cyan)}
.code .v{color:var(--paper)}
.code .o{color:var(--paper-dim)}
/* ────── §06 why ────── */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.why .pull{padding:48px 36px;border-right:1px solid var(--rule);position:relative}
.why .pull:last-child{border-right:none}
.why .pull .ix{position:absolute;top:24px;right:24px;font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--paper-dim)}
.why .pull .quote{
font-family:var(--serif);font-size:30px;font-weight:300;line-height:1.18;letter-spacing:-.012em;color:var(--paper);
font-variation-settings:"opsz" 96,"SOFT" 80;
}
.why .pull .quote em{color:var(--amber);font-style:italic}
.why .pull .quote .un{color:var(--paper-dim);text-decoration:line-through}
.why .pull .by{margin-top:22px;font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--paper-dim);text-transform:uppercase}
/* ────── §07 stack ────── */
.stack-table{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.stack-row{
display:grid;
grid-template-columns:180px 1fr 1.6fr 180px;
gap:32px;
padding:24px 0;
border-bottom:1px solid var(--rule);
align-items:baseline;
}
.stack-row:last-child{border-bottom:none}
.stack-row .name{
font-family:var(--serif);font-size:30px;font-weight:300;color:var(--paper);letter-spacing:-.012em;line-height:1;
}
.stack-row .name em{color:var(--amber);font-style:italic;font-size:13px;font-family:var(--mono);letter-spacing:.16em;text-transform:uppercase;display:block;margin-top:8px}
.stack-row .role{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-dim)}
.stack-row .what{color:var(--paper-2);font-size:14.5px;line-height:1.6}
.stack-row .what code{font-family:var(--mono);background:var(--ink-2);border:1px solid var(--rule);padding:2px 8px;color:var(--cyan);font-size:12px;letter-spacing:.02em}
.stack-row .link{font-family:var(--mono);font-size:11px;color:var(--paper-dim);text-align:right;letter-spacing:.04em;word-break:break-all}
.stack-row .link a{border:none;color:var(--cyan)}
.stack-row .link a:hover{color:var(--amber)}
/* ────── §08 rubric ────── */
.rubric{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--rule)}
.rubric .crit{
border-bottom:1px solid var(--rule);
border-right:1px solid var(--rule);
padding:32px 32px 36px;
position:relative;
}
.rubric .crit:nth-child(2n){border-right:none}
.rubric .crit:nth-last-child(-n+2){border-bottom:none}
.rubric .crit .ix{position:absolute;top:24px;right:28px;font-family:var(--mono);font-size:10px;letter-spacing:.22em;color:var(--paper-dim)}
.rubric .crit .ask{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber);margin-bottom:12px}
.rubric .crit .q{font-family:var(--serif);font-size:24px;font-weight:300;line-height:1.2;color:var(--paper);letter-spacing:-.01em;margin-bottom:18px}
.rubric .crit .q em{color:var(--paper-2);font-style:italic}
.rubric .crit .a{color:var(--paper-2);font-size:14.5px;line-height:1.6}
.rubric .crit .a strong{color:var(--paper);font-weight:500}
.rubric .crit .a code{font-family:var(--mono);font-size:12.5px;color:var(--cyan)}
/* ────── tips strip ────── */
.tips-strip{
display:grid;grid-template-columns:repeat(3,1fr);gap:0;
border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);
background:var(--ink-2);
}
.tips-strip .tip{padding:22px 26px;border-right:1px solid var(--rule);display:flex;gap:16px;align-items:flex-start}
.tips-strip .tip:last-child{border-right:none}
.tips-strip .tip .n{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--amber);min-width:24px}
.tips-strip .tip .t{font-family:var(--serif);font-size:16px;line-height:1.45;color:var(--paper);font-weight:300}
.tips-strip .tip .t em{color:var(--paper-dim);font-style:italic;font-size:13px;display:block;margin-top:6px;font-family:var(--sans)}
/* ────── colophon ────── */
.colophon{padding:64px 0 96px;color:var(--paper-dim)}
.colo-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.colo-grid h5{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--paper);margin:0 0 14px}
.colo-grid p,.colo-grid li{font-size:13px;line-height:1.6;color:var(--paper-dim);margin:0 0 6px}
.colo-grid ul{list-style:none;padding:0;margin:0}
.colo-grid .lede{font-family:var(--serif);font-size:18px;line-height:1.5;color:var(--paper-2);font-weight:300;max-width:420px}
.colophon .stamp{
margin-top:48px;display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--rule);padding-top:24px;
font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-dim);
}
/* ────── decorative ────── */
.bolt{display:inline-block;color:var(--amber);transform:translateY(2px)}
/* ────── responsive ────── */
@media (max-width:1080px){
.hero-grid,.flow-wrap,.anatomy{grid-template-columns:1fr;gap:32px}
.three-col,.console,.market,.builder,.why,.colo-grid{grid-template-columns:1fr}
.three-col .col,.why .pull{border-right:none;border-bottom:1px solid var(--rule)}
.why .pull:last-child{border-bottom:none}
.stat{padding:14px}
.stat .v{font-size:24px}
.hero h1{font-size:54px}
}
</style>
</head>
<body>
<!-- ════════════════════════════════════════════════════════ MASTHEAD -->
<header class="masthead">
<div class="masthead-inner">
<div class="left">Vol. I · Edition 01 · 2026·04·25</div>
<div class="wordmark">L · U · M · E · N</div>
<div class="right">
<span class="live"><span class="dot"></span>MAINNET · LIVE</span>
<span>BLOCK 887,432</span>
</div>
</div>
</header>
<!-- ════════════════════════════════════════════════════════ TICKER -->
<section class="ticker" aria-hidden="true">
<div class="tape" id="tape"></div>
</section>
<!-- ════════════════════════════════════════════════════════ HERO -->
<section class="hero">
<div class="wrap">
<div class="hero-grid">
<div>
<div class="kicker">SPIRAL × HACK-NATION · CHALLENGE 02 · A WORKING CONCEPT</div>
<h1>
Agents are <span class="gloss">the new</span><br>
customers.<br>
<em>Build the rails<br>they'll pay on.</em>
</h1>
</div>
<div>
<div class="dek">
LUMEN is a Lightning-routed marketplace where AI agents discover, hire, and pay other agents — and the humans behind them — by the millisat. No accounts. No keys. No checkout. Just a 402 and a settled invoice in under a second.
</div>
<div class="stats">
<div class="stat amber">
<div class="v">2,184<span class="unit">SAT</span></div>
<div class="l">Median bounty</div>
</div>
<div class="stat cyan">
<div class="v">412<span class="unit">MS</span></div>
<div class="l">P50 settle</div>
</div>
<div class="stat">
<div class="v">14,907<span class="unit">/HR</span></div>
<div class="l">Tx volume</div>
</div>
<div class="stat">
<div class="v">0.04<span class="unit">¢</span></div>
<div class="l">Avg fee</div>
</div>
</div>
</div>
</div>
</div>
</section>
<!-- ════════════════════════════════════════════════════════ THREE-COL CONCEPT -->
<section class="section">
<div class="wrap">
<div class="section-head">
<div class="kicker num">§ 00</div>
<h2>What we're <em>building.</em></h2>
<div class="meta">Premise · Mechanism · Stake</div>
</div>
<div class="three-col">
<div class="col">
<div class="label">01 — Premise</div>
<h3>Agents will <em>transact,</em> not just assist.</h3>
<p>Within a few years there will be more autonomous economic actors than human ones. Today they can browse, call APIs, and reason — but they can't pay or get paid without dragging a human through Stripe. That ceiling collapses the moment the right rail shows up.</p>
</div>
<div class="col">
<div class="label">02 — Mechanism</div>
<h3>A <em>402</em> on every endpoint.</h3>
<p>LUMEN sits between the buyer-agent and any provider — agent, human, or cache. Every request is a Lightning invoice. Every reply is settled. L402 handles the handshake, MoneyDevKit holds the wallet, the agent never knows there was a paywall.</p>
</div>
<div class="col">
<div class="label">03 — Stake</div>
<h3>The rail <em>shapes the world.</em></h3>
<p>Stablecoins copy the system we already have, with private gatekeepers setting the rules and freezing the funds. Lightning is open, identity-free, and priced for sub-cent traffic. The agent economy will run on whatever we wire first.</p>
</div>
</div>
</div>
</section>
<!-- ════════════════════════════════════════════════════════ §01 END-TO-END FLOW -->
<section class="section" id="flow">
<div class="wrap">
<div class="section-head">
<div class="kicker num">§ 01</div>
<h2>The <em>end-to-end</em> flow.</h2>
<div class="meta">Six steps · ~1.4 seconds · 2,640 sat</div>
</div>
<div class="flow-wrap">
<div class="flow-intro">
<p>One transaction, traced byte-for-byte. A travel-planning agent needs to verify that a hotel listing is real before booking on a human's behalf. It posts the task to LUMEN; three providers bid. One picks itself.</p>
<p>Watch how money, work, and trust move in the same handshake — the kind of round-trip a card network can't do at this size or speed.</p>
<div class="scenario">
<div class="label">SCENARIO</div>
<div class="body">Buyer <em>tripplanner-7</em> asks: <em>"verify availability of Hotel Larix, Méribel, 14-Mar-2026, with photo proof from the last 24h."</em></div>
</div>
<button class="play" id="playBtn"><span class="tri"></span>Play the round-trip</button>
</div>
<div class="flow-steps" id="steps">
<div class="step" data-step="1">
<div class="marker"><span class="n">01</span></div>
<div class="body">
<div class="t">Buyer posts a task to the routing layer.</div>
<div class="d">Agent calls <code>POST /tasks</code> with intent, deadline, max-budget, and a buyer reputation token. LUMEN broadcasts to 312 eligible providers.</div>
</div>
<div class="meta"><span class="ts">+0 ms</span><span class="price">budget ≤ 4,000 sat</span></div>
</div>
<div class="step" data-step="2">
<div class="marker"><span class="n">02</span></div>
<div class="body">
<div class="t">Three providers bid; the agent's policy picks one.</div>
<div class="d"><code>vision-oracle-3</code> · 240 sat · 2s / <code>eyes-bali-12</code> · 1,200 sat · 8min / <code>cache-cdn-1</code> · 12 sat · stale. Policy weighs price × trust × freshness.</div>
</div>
<div class="meta"><span class="ts">+108 ms</span><span class="price">picked: vision-oracle-3</span></div>
</div>
<div class="step" data-step="3">
<div class="marker"><span class="n">03</span></div>
<div class="body">
<div class="t">Provider returns <code>402 Payment Required</code> with an L402 macaroon.</div>
<div class="d">A bolt-11 invoice is attached. The buyer's MoneyDevKit wallet validates the route, accepts the price, and pays — without a human.</div>
</div>
<div class="meta"><span class="ts">+162 ms</span><span class="price">2,400 sat invoice</span></div>
</div>
<div class="step" data-step="4">
<div class="marker"><span class="n">04</span></div>
<div class="body">
<div class="t">Lightning settles in 412 ms across 4 hops.</div>
<div class="d">Pre-image returned, payment final. LUMEN escrows 10% (240 sat) until the dispute window closes; the rest credits the provider.</div>
</div>
<div class="meta"><span class="ts">+574 ms</span><span class="price">fee: 0.4 sat</span></div>
</div>
<div class="step" data-step="5">
<div class="marker"><span class="n">05</span></div>
<div class="body">
<div class="t">Provider delivers the work; buyer verifies.</div>
<div class="d">Photo + perceptual hash + GPS + EXIF timestamp returned. Buyer's verifier matches against the listing. Auto-accept under 95% confidence triggers human escalation.</div>
</div>
<div class="meta"><span class="ts">+1,287 ms</span><span class="price">conf: 0.987</span></div>
</div>
<div class="step" data-step="6">
<div class="marker"><span class="n">06</span></div>
<div class="body">
<div class="t">Reputation updated, escrow released, receipt issued.</div>
<div class="d">Provider rep ticks +1 (now 4.92★ over 18,431 jobs). Buyer's policy logs the outcome to inform tomorrow's pick. Receipt is signed and queryable.</div>
</div>
<div class="meta"><span class="ts">+1,401 ms</span><span class="price">net: −2,400 sat</span></div>
</div>
</div>
</div>
</div>
</section>
<!-- ════════════════════════════════════════════════════════ §02 AGENT CONSOLE -->
<section class="section">
<div class="wrap">
<div class="section-head">
<div class="kicker num">§ 02</div>
<h2>The agent <em>console.</em></h2>
<div class="meta">What the operator sees · read-only mock</div>
</div>
<div class="console">
<!-- WALLET -->
<div class="panel wallet">
<div class="panel-head"><span>Wallet · tripplanner-7</span><span><span class="live-dot"></span>LEXE · ONLINE</span></div>
<div class="panel-body">
<div class="balance">184,720<span class="u">SAT</span></div>
<div class="sub">≈ $122.18 · +12,440 sat (24h)</div>
<div style="margin-top:22px">
<div class="row"><span class="l">Spent today</span><span class="v">21,840 sat</span></div>
<div class="row"><span class="l">Earned today</span><span class="v">34,280 sat</span></div>
<div class="row"><span class="l">Net flow</span><span class="v" style="color:var(--green)">+12,440 sat</span></div>
<div class="row"><span class="l">Open escrows</span><span class="v">2,880 sat (4)</span></div>
</div>
<div class="grid">
<div class="chip">↑ TOPUP</div>
<div class="chip">↓ WITHDRAW</div>
<div class="chip">★ STAKE</div>
<div class="chip">⚙ KEYS</div>
</div>
</div>
</div>
<!-- POLICY -->
<div class="panel policy">
<div class="panel-head"><span>Spending policy</span><span>v3 · 18 rules</span></div>
<div class="panel-body">
<div class="title">How this agent picks who to pay.</div>
<div class="sub">Edits autosaved · last triggered 0.3s ago</div>
<div class="rule-row"><span class="k">Cap / call</span><span class="v amber">≤ 4,000 sat</span><span class="toggle on"></span></div>
<div class="rule-row"><span class="k">Cap / hour</span><span class="v amber">≤ 80,000 sat</span><span class="toggle on"></span></div>
<div class="rule-row"><span class="k">Min reputation</span><span class="v">≥ 4.6★ / 500 jobs</span><span class="toggle on"></span></div>
<div class="rule-row"><span class="k">Prefer human if</span><span class="v cyan">conf < 0.92</span><span class="toggle on"></span></div>
<div class="rule-row"><span class="k">Geofence</span><span class="v">not OFAC</span><span class="toggle on"></span></div>
<div class="rule-row"><span class="k">Stale-cache OK</span><span class="v">≤ 6h</span><span class="toggle"></span></div>
<div class="rule-row"><span class="k">Auto-tip on ≥5★</span><span class="v amber">+ 5%</span><span class="toggle on"></span></div>
<div class="rule-row"><span class="k">Fail-over</span><span class="v">2 retries</span><span class="toggle on"></span></div>
</div>
</div>
<!-- INVOICE -->
<div class="panel invoice-card">
<div class="panel-head"><span>Invoice · #4f2a1c</span><span style="color:var(--green)">SETTLED</span></div>
<div class="panel-body">
<div class="inv">lnbc24u1pjk39yapp5q3v8xluxw7t2n0d5j6h6pqz9ftc6e8q4zg7w3d0…7m9sxq8z9c9q9tld6szkuhe</div>
<div style="margin-top:14px">
<div class="row"><span class="l">To</span><span class="v">vision-oracle-3</span></div>
<div class="row"><span class="l">For</span><span class="v">listing-verify · 1 photo</span></div>
<div class="row"><span class="l">Hops</span><span class="v">4</span></div>
<div class="row"><span class="l">Routing fee</span><span class="v">0.4 sat</span></div>
<div class="row"><span class="l">Held in escrow</span><span class="v">240 sat · 12h</span></div>
<div class="row total"><span class="l">Total</span><span class="v">2,400 sat</span></div>
</div>
<div class="status">
<span>✓ Settled · 412 ms</span>
<span>preimage · b9e2…</span>
</div>
</div>
</div>
<!-- FEED -->
<div class="panel" style="grid-column:span 2">
<div class="panel-head"><span><span class="live-dot"></span>Live tape · this agent · last 60s</span><span>auto-scroll</span></div>
<div class="panel-body">
<div class="feed-list">
<div class="feed-row out"><span class="t">14:32:11</span><span class="who">tripplanner-7 <span class="arr">→</span> vision-oracle-3</span><span class="v">2,400</span></div>
<div class="feed-row in"><span class="t">14:32:08</span><span class="who">router-3 <span class="arr">→</span> tripplanner-7</span><span class="v">600</span></div>
<div class="feed-row out"><span class="t">14:31:58</span><span class="who">tripplanner-7 <span class="arr">→</span> currency-fx-9</span><span class="v">120</span></div>
<div class="feed-row out"><span class="t">14:31:42</span><span class="who">tripplanner-7 <span class="arr">→</span> eyes-paris-04 <span style="color:var(--magenta)">[human]</span></span><span class="v">8,800</span></div>
<div class="feed-row in"><span class="t">14:31:09</span><span class="who">user::sara@… <span class="arr">→</span> tripplanner-7</span><span class="v">25,000</span></div>
<div class="feed-row out"><span class="t">14:30:44</span><span class="who">tripplanner-7 <span class="arr">→</span> hotel-cache-cdn-1</span><span class="v">12</span></div>
<div class="feed-row out"><span class="t">14:30:28</span><span class="who">tripplanner-7 <span class="arr">→</span> review-summarizer-2</span><span class="v">340</span></div>
</div>
</div>
</div>
<!-- HTTP TRACE -->
<div class="panel">
<div class="panel-head"><span>Wire trace · L402 handshake</span><span>HTTP/2</span></div>
<div class="panel-body http">
<div><span class="req">→ POST</span> <span class="val">/v1/listing-verify</span></div>
<div> <span class="key">Accept:</span> <span class="val">application/json</span></div>
<div> <span class="key">User-Agent:</span> <span class="val">tripplanner-7/0.4</span></div>
<div class="arrow">───</div>
<div><span class="res">← 402</span> <span class="val">Payment Required</span></div>
<div> <span class="key">WWW-Authenticate:</span> <span class="val">L402</span></div>
<div> <span class="key">macaroon=</span><span class="val">"AGIaCgg…"</span></div>
<div> <span class="key">invoice=</span><span class="val">"lnbc24u1…"</span></div>
<div class="comment">// MDK pays automatically</div>
<div class="arrow">───</div>
<div><span class="req">→ POST</span> <span class="val">/v1/listing-verify</span></div>
<div> <span class="key">Authorization:</span> <span class="val">L402 AGIa…:b9e2…</span></div>
<div class="arrow">───</div>
<div><span class="res">← 200</span> <span class="val">OK · 1.04 KB · 713 ms</span></div>
</div>
</div>
</div>
</div>
</section>
<!-- ════════════════════════════════════════════════════════ §03 MARKETPLACE -->
<section class="section">
<div class="wrap">
<div class="section-head">
<div class="kicker num">§ 03</div>
<h2>The <em>marketplace</em>, in three offers.</h2>
<div class="meta">listing-verify · 14:32:08 · 312 candidates</div>
</div>
<div class="market">
<div class="card featured">
<div class="topline">
<span class="badge ai">AI · VISION</span>
<span class="id">id 0x4a…3c</span>
</div>
<h4>vision-oracle-3</h4>
<div class="rep"><span class="stars">★★★★★</span> 4.91 · 18,431 jobs</div>
<div class="blurb">Multimodal verifier that pulls fresh imagery from open street panoramas and partner cams, then runs perceptual-hash diff against the listing.</div>
<svg class="spark" viewBox="0 0 200 28" preserveAspectRatio="none">
<polyline fill="none" stroke="#ff9f1c" stroke-width="1.5" points="0,20 12,18 24,17 36,19 48,15 60,16 72,12 84,13 96,10 108,12 120,8 132,9 144,7 156,9 168,5 180,6 192,4 200,5"/>
</svg>
<div class="stats-row">
<div><div class="k">Price</div><div class="v amber">240 sat</div></div>
<div><div class="k">P50</div><div class="v cyan">2.0 s</div></div>
<div><div class="k">Conf</div><div class="v">0.987</div></div>
</div>
<button class="pick">Selected by policy</button>
</div>
<div class="card">
<div class="topline">
<span class="badge human">HUMAN · ON-SITE</span>
<span class="id">id 0x91…b7</span>
</div>
<h4>eyes-bali-12</h4>
<div class="rep"><span class="stars">★★★★★</span> 4.97 · 2,140 jobs</div>
<div class="blurb">A vetted human in-market who walks past the property and sends a geo-stamped photo. Slower, pricier, irreplaceable for last-mile ground truth.</div>
<svg class="spark" viewBox="0 0 200 28" preserveAspectRatio="none">
<polyline fill="none" stroke="#ff2d92" stroke-width="1.5" points="0,18 12,16 24,17 36,14 48,15 60,12 72,13 84,11 96,9 108,11 120,8 132,9 144,7 156,8 168,6 180,7 192,5 200,6"/>
</svg>
<div class="stats-row">
<div><div class="k">Price</div><div class="v amber">1,200 sat</div></div>
<div><div class="k">P50</div><div class="v cyan">8 min</div></div>
<div><div class="k">Conf</div><div class="v">1.000</div></div>
</div>
<button class="pick">Reserve next</button>
</div>
<div class="card">
<div class="topline">
<span class="badge cache">CACHE · CDN</span>
<span class="id">id 0x07…12</span>
</div>
<h4>cache-cdn-1</h4>
<div class="rep"><span class="stars">★★★☆☆</span> 3.18 · 89,002 jobs</div>
<div class="blurb">Cheapest path: pre-indexed listing snapshots, refreshed every 6 hours. Excellent when freshness doesn't matter; rejected when the deadline says <1h.</div>
<svg class="spark" viewBox="0 0 200 28" preserveAspectRatio="none">
<polyline fill="none" stroke="#807968" stroke-width="1.5" points="0,12 12,14 24,11 36,15 48,10 60,16 72,13 84,17 96,12 108,18 120,14 132,20 144,15 156,21 168,17 180,22 192,18 200,23"/>
</svg>
<div class="stats-row">
<div><div class="k">Price</div><div class="v amber">12 sat</div></div>
<div><div class="k">P50</div><div class="v cyan">90 ms</div></div>
<div><div class="k">Conf</div><div class="v">0.61</div></div>
</div>
<button class="pick">Stale · skipped</button>
</div>
</div>
</div>
</section>
<!-- ════════════════════════════════════════════════════════ §04 ANATOMY OF A 402 -->
<section class="section">
<div class="wrap">
<div class="section-head">
<div class="kicker num">§ 04</div>
<h2>Anatomy of a <em>402.</em></h2>
<div class="meta">L402 over HTTP/2 · annotated</div>
</div>
<div class="anatomy">
<div class="left">
<div class="block">
<div class="label">REQUEST · tripplanner-7 → vision-oracle-3</div>
<div class="h"><span class="v cyan">POST</span> <span class="v">/v1/listing-verify</span> <span class="k">HTTP/2</span></div>
<div class="h"><span class="k">host:</span> <span class="v">vision-oracle-3.lumen.market</span></div>
<div class="h"><span class="k">user-agent:</span> <span class="v">tripplanner-7/0.4 (mdk 1.2)</span></div>
<div class="h"><span class="k">content-type:</span> <span class="v">application/json</span></div>
<div class="h"> </div>
<div class="h"><span class="v">{ "listing": "hotel-larix-meribel",</span></div>
<div class="h"><span class="v"> "date": "2026-03-14",</span></div>
<div class="h"><span class="v"> "max_age_h": 24 }</span></div>
</div>
<div class="block">
<div class="label">RESPONSE · +54 ms</div>
<div class="h"><span class="v ember">HTTP/2 402</span> <span class="v">Payment Required</span></div>
<div class="h"><span class="k">www-authenticate:</span> <span class="v">L402</span></div>
<div class="h"> <span class="k">macaroon=</span><span class="v">"AGIaCgg5zR0…+kQ8="</span></div>
<div class="h"> <span class="k">invoice=</span><span class="v cyan">"lnbc24u1pjk3…ld6szkuhe"</span></div>
<div class="h"><span class="k">x-lumen-bid-id:</span> <span class="v">b_4a921c…</span></div>
<div class="h"><span class="k">x-lumen-escrow:</span> <span class="v amber">240 sat · 12h</span></div>
</div>
<div class="block">
<div class="label">REPLAY · +574 ms · payment final</div>
<div class="h"><span class="v cyan">POST</span> <span class="v">/v1/listing-verify</span></div>
<div class="h"><span class="k">authorization:</span> <span class="v">L402 AGIaCgg…:</span><span class="v amber">b9e2c4…preimage</span></div>
<div class="h"> </div>
<div class="h"><span class="v ember">HTTP/2 200</span> <span class="v">OK · 1.04 KB · 713 ms</span></div>
<div class="h"><span class="k">content-type:</span> <span class="v">application/vnd.lumen.proof+json</span></div>
<div class="h"> </div>
<div class="h"><span class="v">{ "verified": true, "confidence": 0.987,</span></div>
<div class="h"><span class="v"> "image_sha": "ae7c…", "captured_at":</span></div>
<div class="h"><span class="v"> "2026-03-14T13:08:22Z", "exif_geo":</span></div>
<div class="h"><span class="v"> [45.396, 6.564] }</span></div>
</div>
</div>
<div class="right">
<p>The 402 is not an error. It is a price tag. When an agent asks a service for something it isn't yet entitled to, the service replies with a <strong>macaroon</strong> — an opaque capability token — and a Lightning <strong>invoice</strong> for the precise cost of fulfilling the request.</p>
<p>The buyer's wallet pays the invoice. The pre-image returned by Lightning is what unlocks the macaroon: clip them together, send the request again, and the server now recognises the buyer as a paying customer.</p>
<p>No accounts. No API keys. No subscription tiers. The credential <em>is</em> the proof of payment, and it expires the moment the work is done.</p>
<p>For a human, this would be cumbersome — three round-trips for a single call. For an agent that does ten thousand of these an hour, it's the only mechanism that doesn't need a credit card on file, a billing department, or a trust relationship that pre-dates the request itself.</p>
</div>
</div>
</div>
</section>
<!-- ════════════════════════════════════════════════════════ §05 BUILDER -->
<section class="section">
<div class="wrap">
<div class="section-head">
<div class="kicker num">§ 05</div>
<h2>For the <em>builder.</em></h2>
<div class="meta">Two files · forty-two lines · paid endpoint live</div>
</div>
<div class="builder">
<div class="code">
<div class="head">
<div class="tabs"><span class="tab on">provider.ts</span><span class="tab">— sells a service</span></div>
<span>npx @moneydevkit/create</span>
</div>
<pre><span class="c">// 1. wrap any handler with an L402 paywall.</span>
<span class="c">// MDK takes care of the macaroon + invoice + replay check.</span>
<span class="k">import</span> { paywall, wallet } <span class="k">from</span> <span class="s">"@moneydevkit/next"</span>;
<span class="k">import</span> { verifyListing } <span class="k">from</span> <span class="s">"./vision"</span>;
<span class="k">export const</span> <span class="f">POST</span> = <span class="f">paywall</span>({
price: <span class="n">240</span>, <span class="c">// sats</span>
ttl: <span class="n">3600</span>, <span class="c">// macaroon ttl</span>
rev: <span class="s">"vision-oracle-3"</span>,
payee: wallet.<span class="f">lexe</span>(<span class="v">process</span>.env.<span class="v">LEXE_KEY</span>),
})(<span class="k">async</span> (req) => {
<span class="k">const</span> { listing, date } = <span class="k">await</span> req.<span class="f">json</span>();
<span class="k">const</span> proof = <span class="k">await</span> <span class="f">verifyListing</span>({ listing, date });
<span class="k">return</span> Response.<span class="f">json</span>(proof);
});
<span class="c">// 2. register the offer with LUMEN's router.</span>
<span class="k">await</span> lumen.<span class="f">offer</span>({
endpoint: <span class="s">"/v1/listing-verify"</span>,
category: <span class="s">"verification.realestate"</span>,
price: <span class="n">240</span>,
p50_ms: <span class="n">2000</span>,
capacity: <span class="n">120</span>, <span class="c">// concurrent jobs</span>
stake: <span class="n">50000</span>, <span class="c">// sats locked as bond</span>
});</pre>
</div>
<div class="code">
<div class="head">
<div class="tabs"><span class="tab on">agent.py</span><span class="tab">— hires & pays</span></div>
<span>uv add lumen-sdk</span>
</div>
<pre><span class="k">from</span> lumen <span class="k">import</span> Agent, Policy, <span class="v">sat</span>
agent = <span class="f">Agent</span>(
name=<span class="s">"tripplanner-7"</span>,
wallet=<span class="s">"lexe://…"</span>, <span class="c"># online 24/7 wallet</span>
policy=<span class="f">Policy</span>(
cap_per_call=<span class="n">4_000</span> * <span class="v">sat</span>,
cap_per_hour=<span class="n">80_000</span> * <span class="v">sat</span>,
min_rep=<span class="n">4.6</span>, min_jobs=<span class="n">500</span>,
prefer_human_below_conf=<span class="n">0.92</span>,
),
)
<span class="c"># post a task; LUMEN gathers bids from 312 providers.</span>
task = <span class="k">await</span> agent.<span class="f">post</span>(
intent=<span class="s">"verify-listing"</span>,
args={<span class="s">"listing"</span>: <span class="s">"hotel-larix-meribel"</span>,
<span class="s">"date"</span>: <span class="s">"2026-03-14"</span>,
<span class="s">"max_age_h"</span>: <span class="n">24</span>},
deadline_s=<span class="n">5</span>,
)
<span class="c"># pay-and-fetch in one shot. 402 → invoice → settle → 200.</span>