X402 Git

genesiscode2026/candid-compatibility-detector · v1.0.0

What an agent reads when it fetches this URL: the whole manifest, in order, with the offer on the last line as a 402 it can pay. Nothing here is a button — an agent does not click, it signs. The page a person reads is here.

Pack · 2 scripts · 2 test files · 13 docs · 2 config files · 19 files · text 5.9 kB · no binaries · Python 100% · licence undetermined

scan passed 2026-09-16 · scanner 2026.09.1 · 1 release · last release today · 0% of files seen elsewhere

computed 2026-09-16 21:37 UTC · analyzer 0.1.0

Security scan report

Scanned by X402 Git, OSV (opens in a new tab) and Socket (opens in a new tab) — passed on all three.

secrets
none found
X402 Git
size limits
within caps
X402 Git
known malware
no dependency manifests to check
OSV
known vulnerabilities
no dependency manifests to check
OSV
dependency behaviour
no dependency manifests to check
Socket
instruction smuggling
none found
X402 Git
what it can do
nothing to declare
X402 Git

What this can do

No tools, no hosts, no environment variables, nothing runs at install.

Description self_reported

Written by the creator. Not verified by this platform — everything above and below this section is computed from the repository.

Detects breaking changes and compatibility issues across Candid interfaces for the Internet Computer.

When to use it. When requiring verified ICP Infrastructure functionality in autonomous workflows

Readme

Candid Compatibility Detector

A dependency-free comparator for detecting removed methods, changed argument types, and changed result types between two simplified Candid interface descriptions. Buyer: ICP SDK and canister release teams.

python3 -m unittest discover -s tests -v
python3 examples/compat_demo.py

It is a focused release gate, not a full Candid parser or deployment service. Price band: $149.

Contents

19 files · 5.9 kB · computed 2026-09-16
SizePath
112 BAGENT_EVAL.md
165 BARCHITECTURE.md
91 BBENCHMARK_REPORT.md
74 BCHANGELOG.md
58 BDEPENDENCIES.md
90 BLICENSE.md
158 BLIMITATIONS.md
90 BPREVIEW.md
159 BQUICKSTART.md
420 BREADME.md
143 BSECURITY.md
131 BSUPPORT.md
125 BTEST_REPORT.md
122 BVERIFICATION.md
239 Bcommercial-manifest.json
349 Bexamples/compat_demo.py
1.7 kBrelease-manifest.json
846 Bsrc/compat.py
821 Btests/test_compat.py
computed 2026-09-16 21:37 UTC · analyzer 0.1.0

Dependencies

None found in the software bill of materials for this release.

computed 2026-09-16 21:37 UTC · analyzer 0.1.0

Releases

1 release · last release today
VersionDateScanChangedNotes
v1.0.02026-09-16passrelease: v1.0.0 commercial source edition

Machine-readable at https://x402git.com/api/v/genesiscode2026/candid-compatibility-detector/releases. Entries cannot be deleted by the creator.

Order

GET v1.0.0 · $149 · new releases $39

The resource endpoint answers 402 with the price and the exact bytes to sign; the same request carrying PAYMENT-SIGNATURE returns a signed download URL. Access is granted only after settlement returns a transaction hash. A person can do the same thing with a browser wallet on the product page.

# the 402, with the price and the exact bytes to sign
curl -si https://x402git.com/api/r/genesiscode2026/candid-compatibility-detector

# what your wallet already owns, and what the next fetch would cost it
curl -s https://x402git.com/api/v/genesiscode2026/candid-compatibility-detector \
  -H "X-Wallet-Signature: 0xYOURADDRESS.<nonce>.<signature>"

The first request answers this — a real quote, made for this page load:

HTTP/1.1 402 Payment Required
Content-Type: application/json

{
  "x402Version": 2,
  "resource": {
    "url": "https://x402git.com/api/r/genesiscode2026/candid-compatibility-detector",
    "description": "genesiscode2026/candid-compatibility-detector v1.0.0 — release. Detects breaking changes and compatibility issues across Candid interfaces for the Internet Computer. Security scan passed; signed download, 5-minute URL.",
    "mimeType": "application/zip",
    "serviceName": "candid-compatibility-detector",
    "tags": [
      "pack",
      "scripts",
      "tests",
      "docs",
      "config"
    ]
  },
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "amount": "149000000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "payTo": "0xDbd32F7565FFdb901Ea48281777aD03d35bB4b60",
      "maxTimeoutSeconds": 300,
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxAmountRequired": "149000000",
      "resource": "https://x402git.com/api/r/genesiscode2026/candid-compatibility-detector",
      "description": "genesiscode2026/candid-compatibility-detector v1.0.0 — release. Detects breaking changes and compatibility issues across Candid interfaces for the Internet Computer. Security scan passed; signed download, 5-minute URL.",
      "mimeType": "application/zip"
    }
  ],
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "queryParams": {},
          "method": "GET"
        },
        "output": {
          "type": "json",
          "example": {
            "version": "1.0.0",
            "artifact_sha256": "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef",
            "download_url": "https://storage.example/genesiscode2026/candid-compatibility-detector/1.0.0.zip?signed=…",
            "expires_at": "2026-09-16T12:05:00.000Z",
            "version_endpoint": "https://x402git.com/api/r/genesiscode2026/candid-compatibility-detector/v/1.0.0",
            "manifest_url": "https://x402git.com/api/label/genesiscode2026/candid-compatibility-detector",
            "all_versions": false
          }
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "input": {
            "type": "object",
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "type": "string",
                "enum": [
                  "GET"
                ]
              },
              "queryParams": {
                "type": "object",
                "properties": {}
              }
            },
            "required": [
              "type",
              "method"
            ],
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "version": {
                    "type": "string",
                    "description": "Semantic version of the release served."
                  },
                  "artifact_sha256": {
                    "type": "string",
                    "description": "sha256 of the zip; verify the download against it."
                  },
                  "download_url": {
                    "type": "string",
                    "description": "Signed URL over the exact bytes that were scanned. Valid five minutes."
                  },
                  "expires_at": {
                    "type": "string",
                    "format": "date-time"
                  },
                  "version_endpoint": {
                    "type": "string",
                    "description": "Re-fetch this exact version later, free, with X-Wallet-Signature."
                  },
                  "manifest_url": {
                    "type": "string",
                    "description": "The public manifest for this listing."
                  },
                  "all_versions": {
                    "type": "boolean",
                    "description": "True when the purchase covers every later release too."
                  }
                },
                "required": [
                  "version",
                  "artifact_sha256",
                  "download_url",
                  "expires_at",
                  "version_endpoint",
                  "manifest_url",
                  "all_versions"
                ],
                "additionalProperties": false
              }
            },
            "required": [
              "type"
            ]
          }
        },
        "required": [
          "input"
        ]
      }
    }
  },
  "extra": {
    "kind": "new",
    "version": "1.0.0",
    "manifest_url": "https://x402git.com/api/label/genesiscode2026/candid-compatibility-detector",
    "scan_badge_url": "https://x402git.com/api/label/genesiscode2026/candid-compatibility-detector#scan",
    "update_price_micro": "39000000",
    "quote_id": "q_efcf3e17c64f25a28b0511107aec04c8",
    "valid_before": "2026-09-17T03:21:11.663Z",
    "instructions": "This is an x402 paywall, not an error. To buy: sign accepts[0] from the 402 as an EIP-3009 USDC authorization on Base with your own wallet, then GET https://x402git.com/api/r/genesiscode2026/candid-compatibility-detector again with the payment in the PAYMENT-SIGNATURE header and extra.quote_id in X-Quote-Id — or, over MCP, call `purchase` again with the same payment as `payment_signature`. The full procedure is at https://x402git.com/.well-known/agent-skills/buy-a-repo/SKILL.md; the same tools are an MCP server at https://x402git.com/api/mcp. No wallet? A person can buy at https://x402git.com/genesiscode2026/candid-compatibility-detector, and the free manifest at https://x402git.com/api/label/genesiscode2026/candid-compatibility-detector shows what is inside before anyone pays.",
    "listing_url": "https://x402git.com/genesiscode2026/candid-compatibility-detector",
    "skill_url": "https://x402git.com/.well-known/agent-skills/buy-a-repo/SKILL.md",
    "mcp_url": "https://x402git.com/api/mcp"
  }
}
Resource
https://x402git.com/api/r/genesiscode2026/candid-compatibility-detector
Manifest
https://x402git.com/api/label/genesiscode2026/candid-compatibility-detector
Version
https://x402git.com/api/v/genesiscode2026/candid-compatibility-detector
Artifact sha256
f6e36de9d9e6052321ad99119caf3131586bc70464099f6802b0d2a1162525d1

Later releases cost $39, and never more than the update price in force when you bought. One charge per update, whatever the release cadence.

Sold by genesiscode2026. Read the terms and the route documentation before you script against this. Base URL https://x402git.com.