diff --git a/.github/workflows/sdk-parity-check.yml b/.github/workflows/sdk-parity-check.yml
new file mode 100644
index 00000000..5f335cb0
--- /dev/null
+++ b/.github/workflows/sdk-parity-check.yml
@@ -0,0 +1,36 @@
+name: SDK Parity Check
+
+on:
+  pull_request:
+    paths:
+      - 'sdks/python/**'
+      - 'sdks/typescript/**'
+      - 'core/src/server/openapi.yaml'
+      - 'scripts/**'
+  push:
+    branches:
+      - main
+
+jobs:
+  sdk-parity:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+
+      - name: Install Node Dependencies
+        run: npm install
+
+      - name: Run Parity Validator
+        run: npm run check:sdk-parity
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index f7483395..3d11c782 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,10 @@
                 "viem": "2.48.4"
             },
             "devDependencies": {
-                "concurrently": "^9.2.1"
+                "@types/node": "^26.1.1",
+                "concurrently": "^9.2.1",
+                "tsx": "^4.23.0",
+                "yaml": "^2.9.0"
             },
             "engines": {
                 "node": ">=18.0.0"
@@ -92,6 +95,16 @@
                 "node": ">=18"
             }
         },
+        "core/node_modules/@types/node": {
+            "version": "25.9.5",
+            "resolved": "https://registry.npmjs.org/@types/node/-/node-25.9.5.tgz",
+            "integrity": "sha512-OScDchr2fwuUmWdf4kZ9h7PcJiYDVInhJizG/biAq3cAvqwYktuy/TYGGdZNMtNTFUP7rnb0NU4TUdm82kt4Rg==",
+            "dev": true,
+            "license": "MIT",
+            "dependencies": {
+                "undici-types": ">=7.24.0 <7.24.7"
+            }
+        },
         "core/node_modules/agent-base": {
             "version": "6.0.2",
             "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
@@ -1069,7 +1082,9 @@
             }
         },
         "node_modules/@esbuild/linux-x64": {
-            "version": "0.27.2",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/linux-x64/-/linux-x64-0.28.1.tgz",
+            "integrity": "sha512-u/anNYF2mmVOEDwLtnQ1wOr3EZ9sTNGLWrsYGYwHWzGA3Si84IOkHXlbWTD1NB+9/1lcnweYKO54uhxZydNzfA==",
             "cpu": [
                 "x64"
             ],
@@ -1152,9 +1167,9 @@
             }
         },
         "node_modules/@esbuild/openharmony-arm64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/openharmony-arm64/-/openharmony-arm64-0.27.2.tgz",
-            "integrity": "sha512-LRBbCmiU51IXfeXk59csuX/aSaToeG7w48nMwA6049Y4J4+VbWALAuXcs+qcD04rHDuSCSRKdmY63sruDS5qag==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/openharmony-arm64/-/openharmony-arm64-0.28.1.tgz",
+            "integrity": "sha512-ge+Z7EXFNt2BO1oAMsVpiQ8EwndV9i1xXerAeTIK7AtPs3bKFXQM7nlRxDSIUIMeueR1CNXxqztLzdNeReKBJg==",
             "cpu": [
                 "arm64"
             ],
@@ -3302,12 +3317,20 @@
             "license": "MIT"
         },
         "node_modules/@types/node": {
-            "version": "25.0.9",
+            "version": "26.1.1",
+            "resolved": "https://registry.npmjs.org/@types/node/-/node-26.1.1.tgz",
+            "integrity": "sha512-nxAkRSVkN1Y0JC1W8ky/fTfkGsMmcrRsbx+3XoZE+rMOX71kLYTV7fLXpqud1GpbpP5TuffXFqfX7fH2GgZREw==",
             "license": "MIT",
             "dependencies": {
-                "undici-types": "~7.16.0"
+                "undici-types": "~8.3.0"
             }
         },
+        "node_modules/@types/node/node_modules/undici-types": {
+            "version": "8.3.0",
+            "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.3.0.tgz",
+            "integrity": "sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==",
+            "license": "MIT"
+        },
         "node_modules/@types/qs": {
             "version": "6.14.0",
             "dev": true,
@@ -4621,7 +4644,9 @@
             }
         },
         "node_modules/esbuild": {
-            "version": "0.27.2",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.28.1.tgz",
+            "integrity": "sha512-HrJrvZv5ayxBzPfwphOoNzkzOIIlifzk0KJrGK2c8R4+LKpMtpYLQeUdjnwjWv/LZlkH2laZk+4w78pi99D4Vw==",
             "dev": true,
             "hasInstallScript": true,
             "license": "MIT",
@@ -4632,38 +4657,38 @@
                 "node": ">=18"
             },
             "optionalDependencies": {
-                "@esbuild/aix-ppc64": "0.27.2",
-                "@esbuild/android-arm": "0.27.2",
-                "@esbuild/android-arm64": "0.27.2",
-                "@esbuild/android-x64": "0.27.2",
-                "@esbuild/darwin-arm64": "0.27.2",
-                "@esbuild/darwin-x64": "0.27.2",
-                "@esbuild/freebsd-arm64": "0.27.2",
-                "@esbuild/freebsd-x64": "0.27.2",
-                "@esbuild/linux-arm": "0.27.2",
-                "@esbuild/linux-arm64": "0.27.2",
-                "@esbuild/linux-ia32": "0.27.2",
-                "@esbuild/linux-loong64": "0.27.2",
-                "@esbuild/linux-mips64el": "0.27.2",
-                "@esbuild/linux-ppc64": "0.27.2",
-                "@esbuild/linux-riscv64": "0.27.2",
-                "@esbuild/linux-s390x": "0.27.2",
-                "@esbuild/linux-x64": "0.27.2",
-                "@esbuild/netbsd-arm64": "0.27.2",
-                "@esbuild/netbsd-x64": "0.27.2",
-                "@esbuild/openbsd-arm64": "0.27.2",
-                "@esbuild/openbsd-x64": "0.27.2",
-                "@esbuild/openharmony-arm64": "0.27.2",
-                "@esbuild/sunos-x64": "0.27.2",
-                "@esbuild/win32-arm64": "0.27.2",
-                "@esbuild/win32-ia32": "0.27.2",
-                "@esbuild/win32-x64": "0.27.2"
+                "@esbuild/aix-ppc64": "0.28.1",
+                "@esbuild/android-arm": "0.28.1",
+                "@esbuild/android-arm64": "0.28.1",
+                "@esbuild/android-x64": "0.28.1",
+                "@esbuild/darwin-arm64": "0.28.1",
+                "@esbuild/darwin-x64": "0.28.1",
+                "@esbuild/freebsd-arm64": "0.28.1",
+                "@esbuild/freebsd-x64": "0.28.1",
+                "@esbuild/linux-arm": "0.28.1",
+                "@esbuild/linux-arm64": "0.28.1",
+                "@esbuild/linux-ia32": "0.28.1",
+                "@esbuild/linux-loong64": "0.28.1",
+                "@esbuild/linux-mips64el": "0.28.1",
+                "@esbuild/linux-ppc64": "0.28.1",
+                "@esbuild/linux-riscv64": "0.28.1",
+                "@esbuild/linux-s390x": "0.28.1",
+                "@esbuild/linux-x64": "0.28.1",
+                "@esbuild/netbsd-arm64": "0.28.1",
+                "@esbuild/netbsd-x64": "0.28.1",
+                "@esbuild/openbsd-arm64": "0.28.1",
+                "@esbuild/openbsd-x64": "0.28.1",
+                "@esbuild/openharmony-arm64": "0.28.1",
+                "@esbuild/sunos-x64": "0.28.1",
+                "@esbuild/win32-arm64": "0.28.1",
+                "@esbuild/win32-ia32": "0.28.1",
+                "@esbuild/win32-x64": "0.28.1"
             }
         },
         "node_modules/esbuild/node_modules/@esbuild/aix-ppc64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.27.2.tgz",
-            "integrity": "sha512-GZMB+a0mOMZs4MpDbj8RJp4cw+w1WV5NYD6xzgvzUJ5Ek2jerwfO2eADyI6ExDSUED+1X8aMbegahsJi+8mgpw==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.28.1.tgz",
+            "integrity": "sha512-Svl7tq8k/08+p6CXPpRjQ1fKX+1odH/BQbb48fV6fj3CWHhsoIOoY87w1oHXm0qEpkIK3ZfVgp0hed3XBXzXMQ==",
             "cpu": [
                 "ppc64"
             ],
@@ -4678,9 +4703,9 @@
             }
         },
         "node_modules/esbuild/node_modules/@esbuild/android-arm": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/android-arm/-/android-arm-0.27.2.tgz",
-            "integrity": "sha512-DVNI8jlPa7Ujbr1yjU2PfUSRtAUZPG9I1RwW4F4xFB1Imiu2on0ADiI/c3td+KmDtVKNbi+nffGDQMfcIMkwIA==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/android-arm/-/android-arm-0.28.1.tgz",
+            "integrity": "sha512-0k2F129Xdio1TdJfzJ8sy1Q47vUD2NnwdhiAf7drUN1EBTfPf4hsFCtmMgu/6m8JSzsBrlmVjudMBQqOfG8usQ==",
             "cpu": [
                 "arm"
             ],
@@ -4695,9 +4720,9 @@
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         },
         "node_modules/esbuild/node_modules/@esbuild/android-arm64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/android-arm64/-/android-arm64-0.27.2.tgz",
-            "integrity": "sha512-pvz8ZZ7ot/RBphf8fv60ljmaoydPU12VuXHImtAs0XhLLw+EXBi2BLe3OYSBslR4rryHvweW5gmkKFwTiFy6KA==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/android-arm64/-/android-arm64-0.28.1.tgz",
+            "integrity": "sha512-34EGEbCIAgosYz6goLcopX6Mo7NyGv9tfwEM2/7Ce2VcVRk568iSvniGWcUXIy7wEDR1wzolcxcriFVrWYcwBg==",
             "cpu": [
                 "arm64"
             ],
@@ -4712,9 +4737,9 @@
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         },
         "node_modules/esbuild/node_modules/@esbuild/android-x64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/android-x64/-/android-x64-0.27.2.tgz",
-            "integrity": "sha512-z8Ank4Byh4TJJOh4wpz8g2vDy75zFL0TlZlkUkEwYXuPSgX8yzep596n6mT7905kA9uHZsf/o2OJZubl2l3M7A==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/android-x64/-/android-x64-0.28.1.tgz",
+            "integrity": "sha512-dbwY7ltSMDWsRatcRpCnES4F+im88OCUgGZjy52shC7GqHRE/cYlxNbB4Z4UpJswpcc4Qxd2oE/ufM0p61IKng==",
             "cpu": [
                 "x64"
             ],
@@ -4729,9 +4754,9 @@
             }
         },
         "node_modules/esbuild/node_modules/@esbuild/darwin-arm64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/darwin-arm64/-/darwin-arm64-0.27.2.tgz",
-            "integrity": "sha512-davCD2Zc80nzDVRwXTcQP/28fiJbcOwvdolL0sOiOsbwBa72kegmVU0Wrh1MYrbuCL98Omp5dVhQFWRKR2ZAlg==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/darwin-arm64/-/darwin-arm64-0.28.1.tgz",
+            "integrity": "sha512-TZbWkQY7kvTAXbXUT7uVACR5cMHsDiSz9z7ZKAX/RTq/WJEk3QyRr0wZpNhBDX+/0CtdqUIJlOiodQcta6tY3Q==",
             "cpu": [
                 "arm64"
             ],
@@ -4746,9 +4771,9 @@
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         },
         "node_modules/esbuild/node_modules/@esbuild/darwin-x64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/darwin-x64/-/darwin-x64-0.27.2.tgz",
-            "integrity": "sha512-ZxtijOmlQCBWGwbVmwOF/UCzuGIbUkqB1faQRf5akQmxRJ1ujusWsb3CVfk/9iZKr2L5SMU5wPBi1UWbvL+VQA==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/darwin-x64/-/darwin-x64-0.28.1.tgz",
+            "integrity": "sha512-zfdzgK9ACBNZLI/CyHTOx81SyNbM6YXn7rxSgX97VjyiPl9W1i4Ka4fgKECEoFCKGpvBj5qArWIGgQjOwkgskQ==",
             "cpu": [
                 "x64"
             ],
@@ -4763,9 +4788,9 @@
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         },
         "node_modules/esbuild/node_modules/@esbuild/freebsd-arm64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/freebsd-arm64/-/freebsd-arm64-0.27.2.tgz",
-            "integrity": "sha512-lS/9CN+rgqQ9czogxlMcBMGd+l8Q3Nj1MFQwBZJyoEKI50XGxwuzznYdwcav6lpOGv5BqaZXqvBSiB/kJ5op+g==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/freebsd-arm64/-/freebsd-arm64-0.28.1.tgz",
+            "integrity": "sha512-wG2EA8ENdEI0qhkSZMjfqrdY+ziCYCPMmtZjjIwOmXFjmyzEHn+UUxk5of+SYsjtfs3VpnlC7QLzSI5hY/rOAw==",
             "cpu": [
                 "arm64"
             ],
@@ -4780,9 +4805,9 @@
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         },
         "node_modules/esbuild/node_modules/@esbuild/freebsd-x64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/freebsd-x64/-/freebsd-x64-0.27.2.tgz",
-            "integrity": "sha512-tAfqtNYb4YgPnJlEFu4c212HYjQWSO/w/h/lQaBK7RbwGIkBOuNKQI9tqWzx7Wtp7bTPaGC6MJvWI608P3wXYA==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/freebsd-x64/-/freebsd-x64-0.28.1.tgz",
+            "integrity": "sha512-i7dZ9vQgnvSCzi/rYCXNgtF/U+eKZNJBzu3eTQbRgHnM7tNSizLOkRFAl3qzVc/Op/u5YkHHa4pf/3DOYHthLQ==",
             "cpu": [
                 "x64"
             ],
@@ -4797,9 +4822,9 @@
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         "node_modules/esbuild/node_modules/@esbuild/linux-arm": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/linux-arm/-/linux-arm-0.27.2.tgz",
-            "integrity": "sha512-vWfq4GaIMP9AIe4yj1ZUW18RDhx6EPQKjwe7n8BbIecFtCQG4CfHGaHuh7fdfq+y3LIA2vGS/o9ZBGVxIDi9hw==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/linux-arm/-/linux-arm-0.28.1.tgz",
+            "integrity": "sha512-qVXBOHQS+d5Y722GwJzJUtOLlX7km3CraOaGormF1pDtPd2C/l1SHRPgjLunLGe51Sh5YYWKMFDyV4SxgMQYTQ==",
             "cpu": [
                 "arm"
             ],
@@ -4814,9 +4839,9 @@
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         "node_modules/esbuild/node_modules/@esbuild/linux-arm64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/linux-arm64/-/linux-arm64-0.27.2.tgz",
-            "integrity": "sha512-hYxN8pr66NsCCiRFkHUAsxylNOcAQaxSSkHMMjcpx0si13t1LHFphxJZUiGwojB1a/Hd5OiPIqDdXONia6bhTw==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/linux-arm64/-/linux-arm64-0.28.1.tgz",
+            "integrity": "sha512-yHs+0uc8+nvEAfAfxrWQKK5peSNzBc4PegcMO0EJ2hT71uA7vB8Ihg2e77R2P7SG5uYjPbHlLLmve4LLLRCf0g==",
             "cpu": [
                 "arm64"
             ],
@@ -4831,9 +4856,9 @@
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         "node_modules/esbuild/node_modules/@esbuild/linux-ia32": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/linux-ia32/-/linux-ia32-0.27.2.tgz",
-            "integrity": "sha512-MJt5BRRSScPDwG2hLelYhAAKh9imjHK5+NE/tvnRLbIqUWa+0E9N4WNMjmp/kXXPHZGqPLxggwVhz7QP8CTR8w==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/linux-ia32/-/linux-ia32-0.28.1.tgz",
+            "integrity": "sha512-d1z4ZuP0ajrfz/FhGT4vv278rX8KnPPJx8i5+AtK7TYbx9Le9F1hyzurZpkEyjkGa9dUGhQow4C1NmeGvqxN2w==",
             "cpu": [
                 "ia32"
             ],
@@ -4848,9 +4873,9 @@
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         },
         "node_modules/esbuild/node_modules/@esbuild/linux-loong64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/linux-loong64/-/linux-loong64-0.27.2.tgz",
-            "integrity": "sha512-lugyF1atnAT463aO6KPshVCJK5NgRnU4yb3FUumyVz+cGvZbontBgzeGFO1nF+dPueHD367a2ZXe1NtUkAjOtg==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/linux-loong64/-/linux-loong64-0.28.1.tgz",
+            "integrity": "sha512-M5sRjUVZrkm1OAPR3dlOYzNmN+loZKGVi1VUQGrwuqLcbR6qeAz+famMhjASeH3YVKvZz+zT1jlh/keC3Rj/lg==",
             "cpu": [
                 "loong64"
             ],
@@ -4865,9 +4890,9 @@
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         "node_modules/esbuild/node_modules/@esbuild/linux-mips64el": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/linux-mips64el/-/linux-mips64el-0.27.2.tgz",
-            "integrity": "sha512-nlP2I6ArEBewvJ2gjrrkESEZkB5mIoaTswuqNFRv/WYd+ATtUpe9Y09RnJvgvdag7he0OWgEZWhviS1OTOKixw==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/linux-mips64el/-/linux-mips64el-0.28.1.tgz",
+            "integrity": "sha512-mRObBZeHh2OxcBFPWE/FjylkRgZdYuiTR3vaTozquCGOH14iP9oN4x4Ge81CoIDYQrXmIxpFumJBu5MtZpnQJQ==",
             "cpu": [
                 "mips64el"
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@@ -4882,9 +4907,9 @@
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-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/linux-ppc64/-/linux-ppc64-0.27.2.tgz",
-            "integrity": "sha512-C92gnpey7tUQONqg1n6dKVbx3vphKtTHJaNG2Ok9lGwbZil6DrfyecMsp9CrmXGQJmZ7iiVXvvZH6Ml5hL6XdQ==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/linux-ppc64/-/linux-ppc64-0.28.1.tgz",
+            "integrity": "sha512-slScBsMAb3GFDcdrCgLwZtPYRoH2H/youv10QiZyRjmsP48fznoveWytSgCI/R0ZcUgpc0ZhIUEx6LHts8yrfQ==",
             "cpu": [
                 "ppc64"
             ],
@@ -4899,9 +4924,9 @@
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         "node_modules/esbuild/node_modules/@esbuild/linux-riscv64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/linux-riscv64/-/linux-riscv64-0.27.2.tgz",
-            "integrity": "sha512-B5BOmojNtUyN8AXlK0QJyvjEZkWwy/FKvakkTDCziX95AowLZKR6aCDhG7LeF7uMCXEJqwa8Bejz5LTPYm8AvA==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/linux-riscv64/-/linux-riscv64-0.28.1.tgz",
+            "integrity": "sha512-kw0owk1o0GFETUJyW0jc0G4Yzs0BHZn0JDZ8JRT088vjJYX777BAs1fDGxAC+q831qOs2DTC96mNsG2opdfyyQ==",
             "cpu": [
                 "riscv64"
             ],
@@ -4916,9 +4941,9 @@
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         "node_modules/esbuild/node_modules/@esbuild/linux-s390x": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/linux-s390x/-/linux-s390x-0.27.2.tgz",
-            "integrity": "sha512-p4bm9+wsPwup5Z8f4EpfN63qNagQ47Ua2znaqGH6bqLlmJ4bx97Y9JdqxgGZ6Y8xVTixUnEkoKSHcpRlDnNr5w==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/linux-s390x/-/linux-s390x-0.28.1.tgz",
+            "integrity": "sha512-/lAIjX8aYFRByhh6L5rYtPEDRqa9de/4V/juOXcta5frjvzXO4/sqEtyytse0g3zZFuWu5cDN0MkLz2qRDD2Ag==",
             "cpu": [
                 "s390x"
             ],
@@ -4933,9 +4958,9 @@
             }
         },
         "node_modules/esbuild/node_modules/@esbuild/netbsd-arm64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/netbsd-arm64/-/netbsd-arm64-0.27.2.tgz",
-            "integrity": "sha512-Kj6DiBlwXrPsCRDeRvGAUb/LNrBASrfqAIok+xB0LxK8CHqxZ037viF13ugfsIpePH93mX7xfJp97cyDuTZ3cw==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/netbsd-arm64/-/netbsd-arm64-0.28.1.tgz",
+            "integrity": "sha512-oks0DYbLwWMmaakTsCb+zL4E+aHRVLom9IJZOAthMQEPiQmydXHkziYEsGYRx0uNV/IjEKGAV941JzH02pflqw==",
             "cpu": [
                 "arm64"
             ],
@@ -4950,9 +4975,9 @@
             }
         },
         "node_modules/esbuild/node_modules/@esbuild/netbsd-x64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/netbsd-x64/-/netbsd-x64-0.27.2.tgz",
-            "integrity": "sha512-HwGDZ0VLVBY3Y+Nw0JexZy9o/nUAWq9MlV7cahpaXKW6TOzfVno3y3/M8Ga8u8Yr7GldLOov27xiCnqRZf0tCA==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/netbsd-x64/-/netbsd-x64-0.28.1.tgz",
+            "integrity": "sha512-aeL6lAnN89Hz43Mlh1G8ARasbuoYvSITDEx0tHh5b7jJnHcssqgjy9Yx430GDpmCa6OyrKoS0aNRjKundRizGg==",
             "cpu": [
                 "x64"
             ],
@@ -4967,9 +4992,9 @@
             }
         },
         "node_modules/esbuild/node_modules/@esbuild/openbsd-arm64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/openbsd-arm64/-/openbsd-arm64-0.27.2.tgz",
-            "integrity": "sha512-DNIHH2BPQ5551A7oSHD0CKbwIA/Ox7+78/AWkbS5QoRzaqlev2uFayfSxq68EkonB+IKjiuxBFoV8ESJy8bOHA==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/openbsd-arm64/-/openbsd-arm64-0.28.1.tgz",
+            "integrity": "sha512-MEFJe5C3R8pwXdZ5Y21oo6m7ePiS0d9pWucn99O/wvyJZChoIQKrQDxKrGeW8F5+T0okTHesAmDeiHDTIq0V/Q==",
             "cpu": [
                 "arm64"
             ],
@@ -4984,9 +5009,9 @@
             }
         },
         "node_modules/esbuild/node_modules/@esbuild/openbsd-x64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/openbsd-x64/-/openbsd-x64-0.27.2.tgz",
-            "integrity": "sha512-/it7w9Nb7+0KFIzjalNJVR5bOzA9Vay+yIPLVHfIQYG/j+j9VTH84aNB8ExGKPU4AzfaEvN9/V4HV+F+vo8OEg==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/openbsd-x64/-/openbsd-x64-0.28.1.tgz",
+            "integrity": "sha512-i/ZLIOafE0Z8cI/XANJAixoJL/uRAoS2xOA3rb0xN+KK0K177cMAsQYkzHtBrtMXAKuAc7HGgcWiZ/sRC1Nxgw==",
             "cpu": [
                 "x64"
             ],
@@ -5001,9 +5026,9 @@
             }
         },
         "node_modules/esbuild/node_modules/@esbuild/sunos-x64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/sunos-x64/-/sunos-x64-0.27.2.tgz",
-            "integrity": "sha512-kMtx1yqJHTmqaqHPAzKCAkDaKsffmXkPHThSfRwZGyuqyIeBvf08KSsYXl+abf5HDAPMJIPnbBfXvP2ZC2TfHg==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/sunos-x64/-/sunos-x64-0.28.1.tgz",
+            "integrity": "sha512-BEjgtECkL3vY+SaSQ6nzVfiALUeFxpawyp8Jmf5PtYhf1Ug40N1h/hxlhts+f1FvSvarEigdxS3BlSMI2PJLcQ==",
             "cpu": [
                 "x64"
             ],
@@ -5018,9 +5043,9 @@
             }
         },
         "node_modules/esbuild/node_modules/@esbuild/win32-arm64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/win32-arm64/-/win32-arm64-0.27.2.tgz",
-            "integrity": "sha512-Yaf78O/B3Kkh+nKABUF++bvJv5Ijoy9AN1ww904rOXZFLWVc5OLOfL56W+C8F9xn5JQZa3UX6m+IktJnIb1Jjg==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/win32-arm64/-/win32-arm64-0.28.1.tgz",
+            "integrity": "sha512-lCv9eK/H6ZJWbE7bh2nw54CZ9M2nupBxJcTsdk/QQnWkdSjKGuxmmH8/GWrlT1eMmZfn4dGcCjRte397WqfQXA==",
             "cpu": [
                 "arm64"
             ],
@@ -5035,9 +5060,9 @@
             }
         },
         "node_modules/esbuild/node_modules/@esbuild/win32-ia32": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/win32-ia32/-/win32-ia32-0.27.2.tgz",
-            "integrity": "sha512-Iuws0kxo4yusk7sw70Xa2E2imZU5HoixzxfGCdxwBdhiDgt9vX9VUCBhqcwY7/uh//78A1hMkkROMJq9l27oLQ==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/win32-ia32/-/win32-ia32-0.28.1.tgz",
+            "integrity": "sha512-zvb/mB2bSCoJOpoCBgYKKpX6YM6mJBlBUVUtVj41DlZJVEB6/0CKlRYxP5wWl1C1ILiCoAU5wZZ4q1P3qeS6Eg==",
             "cpu": [
                 "ia32"
             ],
@@ -5052,9 +5077,9 @@
             }
         },
         "node_modules/esbuild/node_modules/@esbuild/win32-x64": {
-            "version": "0.27.2",
-            "resolved": "https://registry.npmjs.org/@esbuild/win32-x64/-/win32-x64-0.27.2.tgz",
-            "integrity": "sha512-sRdU18mcKf7F+YgheI/zGf5alZatMUTKj/jNS6l744f9u3WFu4v7twcUI9vu4mknF4Y9aDlblIie0IM+5xxaqQ==",
+            "version": "0.28.1",
+            "resolved": "https://registry.npmjs.org/@esbuild/win32-x64/-/win32-x64-0.28.1.tgz",
+            "integrity": "sha512-bm4Mowrv+GXMlpWX++EcXw/iLyd1o3+bJkC2DkWXYVvgZCqD/bSj9ctZeAMC3cIxgjRVR2Dufaiu4YPxr5gW1A==",
             "cpu": [
                 "x64"
             ],
@@ -5520,6 +5545,21 @@
             "dev": true,
             "license": "ISC"
         },
+        "node_modules/fsevents": {
+            "version": "2.3.3",
+            "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
+            "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
+            "dev": true,
+            "hasInstallScript": true,
+            "license": "MIT",
+            "optional": true,
+            "os": [
+                "darwin"
+            ],
+            "engines": {
+                "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
+            }
+        },
         "node_modules/function-bind": {
             "version": "1.1.2",
             "license": "MIT",
@@ -5594,17 +5634,6 @@
                 "url": "https://github.com/sponsors/sindresorhus"
             }
         },
-        "node_modules/get-tsconfig": {
-            "version": "4.13.0",
-            "dev": true,
-            "license": "MIT",
-            "dependencies": {
-                "resolve-pkg-maps": "^1.0.0"
-            },
-            "funding": {
-                "url": "https://github.com/privatenumber/get-tsconfig?sponsor=1"
-            }
-        },
         "node_modules/get-uri": {
             "version": "6.0.5",
             "dev": true,
@@ -7853,14 +7882,6 @@
                 "node": ">=8"
             }
         },
-        "node_modules/resolve-pkg-maps": {
-            "version": "1.0.0",
-            "dev": true,
-            "license": "MIT",
-            "funding": {
-                "url": "https://github.com/privatenumber/resolve-pkg-maps?sponsor=1"
-            }
-        },
         "node_modules/restore-cursor": {
             "version": "3.1.0",
             "dev": true,
@@ -8680,12 +8701,13 @@
             "license": "0BSD"
         },
         "node_modules/tsx": {
-            "version": "4.21.0",
+            "version": "4.23.0",
+            "resolved": "https://registry.npmjs.org/tsx/-/tsx-4.23.0.tgz",
+            "integrity": "sha512-eUdUIaCr963q2h5u3+QwvYp0+eqPvn+egeqZUm0hwERCqqx1E3kK5ehbGCvqSE5MQAULr67ww0cA3jKc3YkM1w==",
             "dev": true,
             "license": "MIT",
             "dependencies": {
-                "esbuild": "~0.27.0",
-                "get-tsconfig": "^4.7.5"
+                "esbuild": "~0.28.0"
             },
             "bin": {
                 "tsx": "dist/cli.mjs"
@@ -8780,7 +8802,10 @@
             }
         },
         "node_modules/undici-types": {
-            "version": "7.16.0",
+            "version": "7.24.6",
+            "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.24.6.tgz",
+            "integrity": "sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg==",
+            "dev": true,
             "license": "MIT"
         },
         "node_modules/universalify": {
@@ -9129,6 +9154,22 @@
             "dev": true,
             "license": "ISC"
         },
+        "node_modules/yaml": {
+            "version": "2.9.0",
+            "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.9.0.tgz",
+            "integrity": "sha512-2AvhNX3mb8zd6Zy7INTtSpl1F15HW6Wnqj0srWlkKLcpYl/gMIMJiyuGq2KeI2YFxUPjdlB+3Lc10seMLtL4cA==",
+            "dev": true,
+            "license": "ISC",
+            "bin": {
+                "yaml": "bin.mjs"
+            },
+            "engines": {
+                "node": ">= 14.6"
+            },
+            "funding": {
+                "url": "https://github.com/sponsors/eemeli"
+            }
+        },
         "node_modules/yargs": {
             "version": "17.7.2",
             "dev": true,
diff --git a/package.json b/package.json
index 1566b4c1..68e9d8c1 100644
--- a/package.json
+++ b/package.json
@@ -14,10 +14,14 @@
         "generate": "npm run generate:sdk:all --workspace=pmxt-core",
         "test": "./scripts/verify-all.sh",
         "docs:apply-hosted": "node scripts/apply-hosted-manifest.js",
-        "docs:llms": "node scripts/generate-llms.js"
+        "docs:llms": "node scripts/generate-llms.js",
+        "check:sdk-parity": "tsx scripts/validate-sdk-parity.ts"
     },
     "devDependencies": {
-        "concurrently": "^9.2.1"
+        "@types/node": "^26.1.1",
+        "concurrently": "^9.2.1",
+        "tsx": "^4.23.0",
+        "yaml": "^2.9.0"
     },
     "dependencies": {
         "@types/cli-progress": "^3.11.6",
diff --git a/scripts/extract_python_models.py b/scripts/extract_python_models.py
new file mode 100644
index 00000000..c11f2a7e
--- /dev/null
+++ b/scripts/extract_python_models.py
@@ -0,0 +1,36 @@
+import ast
+import json
+import sys
+import os
+
+def parse_python_file(filepath):
+    if not os.path.exists(filepath):
+        print(f"Error: File {filepath} not found", file=sys.stderr)
+        sys.exit(1)
+
+    with open(filepath, 'r', encoding='utf-8') as f:
+        tree = ast.parse(f.read())
+
+    models = {}
+    for node in ast.walk(tree):
+        if isinstance(node, ast.ClassDef):
+            fields = []
+            for item in node.body:
+                if isinstance(item, ast.AnnAssign):
+                    annotation_str = ast.unparse(item.annotation)
+                    fields.append({
+                        "name": item.target.id,
+                        # Check for Optional[...] or X | None
+                        "nullable": "Optional" in annotation_str or "None" in annotation_str
+                    })
+            
+            if fields:
+                models[node.name] = fields
+
+    return models
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python extract_python_models.py <path_to_python_file>", file=sys.stderr)
+        sys.exit(1)
+    print(json.dumps(parse_python_file(sys.argv[1])))
\ No newline at end of file
diff --git a/scripts/validate-sdk-parity.ts b/scripts/validate-sdk-parity.ts
new file mode 100644
index 00000000..90ec3a3e
--- /dev/null
+++ b/scripts/validate-sdk-parity.ts
@@ -0,0 +1,157 @@
+import fs from "fs";
+import path from "path";
+import yaml from "yaml";
+import ts from "typescript";
+import { execSync } from "child_process";
+
+interface ModelField {
+    name: string;
+    required: boolean;
+    nullable: boolean;
+}
+
+// 1. Load OpenAPI Schema
+function loadOpenApi() {
+    const file = path.join(process.cwd(), "core/src/server/openapi.yaml");
+    if (!fs.existsSync(file)) {
+        console.error("❌ OpenAPI schema not found at", file);
+        process.exit(1);
+    }
+    return yaml.parse(fs.readFileSync(file, "utf8"));
+}
+
+function extractSchemaModels(schema: any) {
+    const result = new Map<string, ModelField[]>();
+    const schemas = schema.components?.schemas || {};
+
+    for (const [modelName, model] of Object.entries<any>(schemas)) {
+        const fields: ModelField[] = [];
+        for (const [name, value] of Object.entries<any>(model.properties || {})) {
+            fields.push({
+                name,
+                required: model.required?.includes(name) ?? false,
+                nullable: value.nullable === true
+            });
+        }
+        result.set(modelName, fields);
+    }
+    return result;
+}
+
+// 2. Extract TS Interfaces via Compiler API
+function extractTsInterfaces(filePath: string) {
+    if (!fs.existsSync(filePath)) {
+        console.error("❌ TS file not found at", filePath);
+        process.exit(1);
+    }
+
+    const source = ts.createSourceFile(
+        filePath,
+        fs.readFileSync(filePath, "utf8"),
+        ts.ScriptTarget.Latest
+    );
+
+    const models = new Map<string, ModelField[]>();
+
+    function visit(node: ts.Node) {
+        if (ts.isInterfaceDeclaration(node)) {
+            const fields: ModelField[] = [];
+            node.members.forEach(member => {
+                if (ts.isPropertySignature(member)) {
+                    fields.push({
+                        name: member.name.getText(source),
+                        required: !member.questionToken,
+                        nullable: member.type?.getText(source).includes("null") ?? false
+                    });
+                }
+            });
+            models.set(node.name.text, fields);
+        }
+        ts.forEachChild(node, visit);
+    }
+
+    visit(source);
+    return models;
+}
+
+// 3. Extract Python Models via Subprocess
+function extractPythonModels(filePath: string) {
+    const pyScript = path.join(__dirname, "extract_python_models.py");
+    let output: string;
+    
+    try {
+        // Try Linux/Mac/GitHub Actions standard first
+        output = execSync(`python3 "${pyScript}" "${filePath}"`).toString();
+    } catch (e1) {
+        try {
+            // Fallback to Windows standard
+            output = execSync(`python "${pyScript}" "${filePath}"`).toString();
+        } catch (e2) {
+            try {
+                // Fallback to Windows Python Launcher (Your current setup)
+                output = execSync(`py "${pyScript}" "${filePath}"`).toString();
+            } catch (e3) {
+                console.error("❌ Failed to execute Python subprocess. Ensure python3, python, or py is available.");
+                process.exit(1);
+            }
+        }
+    }
+    
+    return JSON.parse(output);
+}
+
+// 4. Comparison Engine
+function compare() {
+    // Adjust these paths to where PMXT's unified generated models actually live
+    const TS_MODEL_PATH = path.join(process.cwd(), "sdks/typescript/pmxt/models.ts"); 
+    const PY_MODEL_PATH = path.join(process.cwd(), "sdks/python/pmxt/models.py");
+
+    const schema = loadOpenApi();
+    const openapiModels = extractSchemaModels(schema);
+    const tsModels = extractTsInterfaces(TS_MODEL_PATH);
+    
+    let pyModels;
+    try {
+        pyModels = extractPythonModels(PY_MODEL_PATH);
+    } catch (e) {
+        console.error("❌ Failed to parse Python models.");
+        process.exit(1);
+    }
+
+    let failed = false;
+
+    for (const [modelName, openapiFields] of openapiModels.entries()) {
+        const tsModel = tsModels.get(modelName);
+        const pyModel = pyModels[modelName];
+
+        if (!tsModel) {
+            console.warn(`⚠️ Missing TS model: ${modelName} (Ignored if intentional)`);
+            continue;
+        }
+
+        openapiFields.forEach(openapiField => {
+            const tsField = tsModel.find(f => f.name === openapiField.name);
+            
+            if (tsField) {
+                if (openapiField.nullable !== tsField.nullable) {
+                    console.error(`\n❌ SDK parity failed`);
+                    console.error(`Model: ${modelName}`);
+                    console.error(`Field: ${openapiField.name}`);
+                    console.error(`OpenAPI nullable: ${openapiField.nullable}`);
+                    console.error(`TypeScript nullable: ${tsField.nullable}`);
+                    console.error(`Fix: Update TypeScript interface to match OpenAPI.\n`);
+                    failed = true;
+                }
+            }
+        });
+    }
+
+    if (failed) {
+        console.error("🚨 Parity check failed. Please fix the mismatches above.");
+        process.exit(1);
+    } else {
+        console.log("✅ SDK Parity Passed! OpenAPI schema aligns with generated code.");
+    }
+}
+
+compare();
\ No newline at end of file
diff --git a/sdks/typescript/pmxt/models.ts b/sdks/typescript/pmxt/models.ts
index fc5ca349..2a90d8a3 100644
--- a/sdks/typescript/pmxt/models.ts
+++ b/sdks/typescript/pmxt/models.ts
@@ -1005,13 +1005,13 @@ export interface MatchResult extends Readonly<UnifiedMarket> {
     confidence: number;
 
     /** Human-readable explanation of the match. */
-    reasoning?: string;
+    reasoning?: string | null;
 
     /** Best bid price on the matched venue (when includePrices=true). */
-    bestBid?: number;
+    bestBid?: number | null;
 
     /** Best ask price on the matched venue (when includePrices=true). */
-    bestAsk?: number;
+    bestAsk?: number | null;
 
     /** The source market this was matched against. Present in browse mode, absent in lookup mode. */
     sourceMarket?: UnifiedMarket;
@@ -1160,13 +1160,13 @@ export interface PriceComparison {
     confidence: number;
 
     /** Human-readable explanation. */
-    reasoning?: string;
+    reasoning?: string | null;
 
     /** Best bid price on this venue. */
-    bestBid?: number;
+    bestBid?: number | null;
 
     /** Best ask price on this venue. */
-    bestAsk?: number;
+    bestAsk?: number | null;
 
     /** The venue name (e.g. 'kalshi', 'polymarket'). */
     venue: string;