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fastapi Consumers
Olaf Alders edited this page Jul 21, 2025
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This page is for people who are using our API v1 directly, and means we have a way to contact you should something need to be announced.
If you have developed an application which uses the MetaCPAN API, please email your app details to [email protected]. Please include:
- Your app name
- An URL for your app (if there is one)
- Your name with contact info or a contact URL
- The UserAgent name of your app
Allowing your app to have a unique username helps us to better identify incoming traffic and also to get in touch with you if there's a problem. Listing your app on this page also allows us to get in touch with you regarding important API changes.
- App name: ActiveState
- Contact: AS Infrastructure
- UserAgent: ActiveStateMetaCPANAgent/1.0
- Notes: A CPAN mirror used for secure supply chain analysis
- App name: Alexander Karelas
- Contact: PAUSE id KARJALA
- UserAgent: "perlmodules.net 0.1" (without the quotes)
- Notes: https://perlmodules.net
- App name: alfred-metacpan
- App URL: https://github.com/2shortplanks/alfred-metacpan
- Contact: Two Short Planks - http://twoshortplanks.com/contact
- UserAgent: alfred-metacpan/0.01
- Notes: search metacpan from within the Alfred app launcher
- App name: analysis.cpantesters.org
- App URL: http://analysis.cpantesters.org/
- Contact: Andreas König - https://metacpan.org/author/ANDK
- UserAgent: analysis.cpantesters.org/$VERSION
- App name: App::rs
- Contact: Yang Bo
- UserAgent: -
- Notes: The first reference counting CPAN client
- App name: ArkDark
- App URL: https://github.com/skarfacegc/CPANDash
- Contact: skarfacegc - https://github.com/skarfacegc/
- UserAgent: CPANDash
- Notes: (assuming I setup correctly)
- App name: Black Duck by Synopsys
- Contact: bmckalla
- UserAgent: -
- Notes: OpenSource licensing and security risk identification
- App name: brian d foy
- Contact: PAUSE id BRIANDFOY
- UserAgent:
- App name: Checkmarx
- Contact: Checkmarx
- UserAgent: -
- Notes: Software Composition Analysis (SCA)
- App name: coderbits
- App URL: https://coderbits.com
- Contact: Scott Smith - [email protected]
- UserAgent: curl/7.21.1 (i686-pc-mingw32) libcurl/7.21.1 OpenSSL/0.9.8r zlib/1.2.3
- App name: cpm
- Contact: skaji
- UserAgent: App::cpm/$VERSION
- App name: cpanminus
- App URL: https://github.com/miyagawa/cpanminus
- Contact: Tatsuhiko Miyagawa
- UserAgent: cpanminus/$VERSION
- App name: cpans
- App URL: https://metacpan.org/module/App::metacpansearch
- Contact: Brock Wilcox - [email protected] - http://thelackthereof.org/
- UserAgent: LWP
- Notes: command-line cpan search
- App name: CpanBot
- Contact: bence98
- UserAgent: CpanBot/1.0 python-requests/<pyreq.ver.num>
- Notes: A convenience wrapper around CPANPlus and an automated bot putting MetaCPAN packages onto the Arch User Repository
- App name: CPAN Dashboard
- Contact: davorg
- UserAgent: MetaCPAN::Client/$VERSION
- Notes: Dashboard for CPAN authors
- App name: CPAN Dependencies Graph
- Contact: DBOOK
- UserAgent: MetaCPAN::Client/$VERSION
- Notes: CPAN distribution dependency graphs
- App name: cpandoc
- App URL: https://metacpan.org/module/Pod::Cpandoc
- Contact: Shawn M Moore - [email protected]
- UserAgent: cpandoc/$VERSION
- App name: CPANDash
- Contact: skarfacegc
- UserAgent: CPANDash
- Notes: ArkDark (assuming I setup correctly)
- App name: CPAN Once a Week, Every Week
- App URL: http://onceaweek.cjmweb.net/
- Contact: Christopher J. Madsen - https://metacpan.org/author/CJM
- UserAgent: onceaweek/1 HTTP-Tiny/$VERSION
- App name: CPAN Releases
- App URL: http://pipes.yahoo.com/pipes/pipe.info?_id=485219981268f28db3a1511503b11ceb
- Contact: David Dillard (david underscore dillard at symantec dot com)
- UserAgent: Unknown
- Notes: Yahoo Pipe
- App name: CPAN::Perl::Releases::MetaCPAN
- Contact: skaji
- UserAgent: CPAN::Perl::Releases::MetaCPAN/VERSION
- App name: CPANscan
- App URL: https://cpanscan.com/
- Contact: [email protected]
- UserAgent: cpanscan.com
- App name: CPAN Testers Matrix
- App URL: http://matrix.cpantesters.org
- Contact: Slaven Rezić
- UserAgent: LWP
- App name: David Cantrell
- Contact: PAUSE id DCANTRELL
- UserAgent: DCANTRELL-*
- Notes: same prefix, different suffix for different scripts so you can tell me which one is misbehaving
- App name: Dist::Zilla::Role::MetaCPANInterfacer
- App URL: https://metacpan.org/module/Dist::Zilla::Role::MetaCPANInterfacer
- Contact: Brendan Byrd - [email protected]
- UserAgent: "Mozilla/5.0 ($o; $os) ".blessed($self)."/$v ".$ua->_agent
- Notes: $self->mcpan
- App name: DuckDuckGo MetaCPAN Instant Answer
- App URL: https://duckduckgo.com/?q=cpan+catalyst
- Contact: DuckDuckGo - [email protected]
- UserAgent: User's browser
- App Source: https://github.com/duckduckgo/zeroclickinfo-spice/blob/master/lib/DDG/Spice/MetaCPAN.pm
- App name: IRC perlbot
- Contact: simcop2387
- UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko, really Perlbot) Chrome/45.0.2454.85 Safari/537.36
- Notes: An IRC bot that handles a lot of perl related tasks in perl irc channels
- App name: Kritika
- Contact: vti
- UserAgent: KritikaIO
- Notes: Perl code review and CPAN dependencies security issues tracking
- App name: MacPorts
- Contact: https://www.macports.org/contact.php
- UserAgent: -
- Notes: check for updates in perl5 PortGroup
- App name: Map of CPAN
- App URL: http://mapofcpan.org/
- Contact: Grant McLean - https://metacpan.org/author/GRANTM
- UserAgent: User's browser (via JSONP) + URL param application=cpan-map
- App Source: https://github.com/grantm/cpan-map
- App name: matrix.cpantesters.org
- Contact: PAUSE id SREZIC
- UserAgent: -
- App name: metacpan_api
- Contact: Cogitri
- UserAgent: -
- Notes: A rust library used to access the metacpan.org API. Mainly used by tmplgen
- App name: MetaCPAN Notify
- App URL: https://metacpan.org/release/App-MetaCPAN-Gtk2-Notify
- Contact: Pavel Shaydo - https://metacpan.org/author/ZWON
- UserAgent: MetaCPAN Notify/$VERSION
- Notes: starting from version 0.05, before it was libwww-perl
- App name: METACPAN weekly report
- Contact: NICEPERL
- UserAgent: MetaCPAN::Client/$VERSION
- Notes: Great CPAN modules released last week
- App name: Mojolicious Plugin Matrix
- App URL: http://mojo.perl-services.de
- Contact: Renee Baecker - http://perl-services.de/kontakt.cgi
- UserAgent: Mojolicious Matrix Plugin (mojo.perl-services.de)/0.03
- App name: PAUSE::Permissions::MetaCPAN
- Contact: skaji
- UserAgent: PAUSE-Permissions-MetaCPAN/VERSION
- App name: Perl Maven's view
- App URL: http://cpan.perlmaven.com/
- Contact: Gabor Szabo - https://metacpan.org/author/SZABGAB
- UserAgent: -
- App name: PerlModules.net
- App URL: https://www.perlmodules.net/
- Contact: webmaster - [email protected]
- UserAgent: perlmodules.net 0.1
- App name: Perlybook.org
- App URL: http://perlybook.org
- Contact: Renee Baecker - http://perl-services.de/kontakt.cgi
- UserAgent: Not defined yet
- Notes: have to search for solutions how to set UA for jquerys' getJSON
- App name: Pod::Cpandoc
- Contact: Shawn M Moore
- UserAgent: cpandoc/$VERSION
- Notes: cpandoc
- App name: Renovate
- Contact: GitHub Issues
- UserAgent: -
- Notes: Automated dependency updates. Multi-platform and multi-language.
- App name: rpmcpan
- App URL: https://github.com/iovation/rpmcpan
- Contact: theory
- UserAgent: rpmcpan/1.0
- App name: rt.cpan.org
- App URL: https://rt.cpan.org
- Contact: rt-cpan-admin - [email protected]
- UserAgent: CPAN2RT/$VERSION
- App name: Software Heritage
- Contact: https://www.softwareheritage.org/contact
- UserAgent: Software Heritage cpan lister VERSION
- App name: Versioneye
- Contact: Robert Reiz
- UserAgent: -
- Notes: we keep eye on licence, dependency and security details
- App name: Xavier (yadd) Guimard
- Contact: PAUSE id GUIMARD
- UserAgent: Debian uscan $VERSION
- Notes: Debian tool used to import archives
The general search autocomplete endpoint is also used directly by browsers from client-side JS.
Some information was merged in from https://github.com/metacpan/metacpan-api/wiki/API-Consumers/ae9d26b016653a263d4a1bfcd5cb94309c7dc093