Pay-per-call x402 MCP tools on Base USDC: Release Guardian + Workflow Runner.
Pay-per-call AI-agent APIs on Base USDC (x402 v2). No account, no API key, no
subscription. Every paid endpoint returns HTTP 402 with the payment challenge;
sign the quoted USDC amount to the canonical Exodus treasury and retry to receive
the premium result.
Live origin: https://genesis-agent-tools.genesisagenttools.workers.dev
Direct buyer page: /release-guardian — free preview, no account, 0.001 USDC.
Topics: openapi · breaking-changes · api-testing · github-actions · release · mcp · x402
Pay-per-call x402 cross-contract preflight for MCP tools, common OpenAPI breakages, GraphQL, SDK exports and JSON Schema changes before release.
POST /api/flagships/release-guardian{ "tier": "quick", "input": { "previous": …, "current": … } }SAFE / RISKY / BREAKING / UNKNOWN / UNSUPPORTEDeip155:8453) · USDC · non-custodial (EIP-3009)curl -sS -D - -X POST \
https://genesis-agent-tools.genesisagenttools.workers.dev/api/flagships/release-guardian \
-H 'content-type: application/json' \
-d '{"tier":"quick","input":{"previous":{"paths":{"/users":{},"/users/{id}":{}}},"current":{"paths":{"/users":{}}}}}'
# → HTTP 402 with a base64 PAYMENT-REQUIRED header; sign & retry to get SAFE/RISKY/BREAKING
Runnable CI examples (GitHub Actions, shell, JS): examples/release-guardian/.
- uses: genesiscode2026/genesis-release-guardian@v1
with:
previous-spec: spec/openapi.baseline.json
current-spec: spec/openapi.json
mode: quick
fail-on: breaking
max-spend-usd: '0.01'
private-key: ${{ secrets.X402_PRIVATE_KEY }}
The action reads only the two spec files you supply, enforces a spending ceiling
against the live 402 challenge before signing, and never holds your key. Live demo:
genesiscode2026/release-guardian-demo.
npx -y genesis-agent-mcp
Two transports for the same five flagship tools:
npx -y genesis-agent-mcphttps://genesis-agent-tools.genesisagenttools.workers.dev/mcp
(initialize / tools/list / tools/call; stateless JSON-RPC; paid tools return the
x402 challenge unless the request carries a valid PAYMENT-SIGNATURE header)A thin buyer-side MCP adapter exposes Release Guardian + Workflow Runner (and the
other flagships) as tools for Cline / Claude / Cursor. Buyer key via
X402_PRIVATE_KEY (never committed); per-call ceiling + session budget built in.
Config: mcp/README.md.
| Flagship | What it does (buyer intent) | Endpoint | Quick | Deep |
|---|---|---|---|---|
| Workflow Runner | Validate or run a bounded HTTP/JSON workflow with a deterministic trace. | POST /api/flagships/workflow-runner | 0.005 | 0.035 |
| Asset Intelligence | Verify a crypto asset's live multi-source price, freshness, and on-chain owner. | POST /api/flagships/asset-intelligence | 0.005 | 0.025 |
| Research & Evidence | Extract cited claims and contradictions from supplied URLs. | POST /api/flagships/research-evidence | 0.005 | 0.040 |
| Agent Assurance | Audit an agent or MCP server for readiness, observed risk, and evidence. | POST /api/flagships/agent-assurance | 0.005 | 0.029 |
All prices in USDC. Release Guardian Quick is the $0.001 acquisition wedge; all other Quick ≤ $0.005 (Agent402 execute); all Deep ≤ $0.040
(execute-plus). Bounded workflow example: examples/workflow-runner/.
Live / submitted distribution surfaces (machine-native, no account, no API key):
| Channel | Status | Link |
|---|---|---|
| Agent402 | INDEXED (health 1.0; dispatch gated by settlement floor) | https://agent402.tools |
| x402scan | LISTED | https://www.x402scan.com/server/c6741010-aff0-42ae-85dc-a28523d26cb2 |
| MCP Registry | LIVE v1.0.0 | io.github.genesiscode2026/genesis-agent-mcp |
| true402 | REGISTERED (free discovery) | https://true402.dev/catalog |
| PayAPI Market | LIVE · x402 verified (Release Guardian) | https://payapi.market/api/genesis-release-guardian |
| FiatDock | 5 callable listings · pending/unverified · 0 ratings | https://fiatdock.com/browse |
| PayanAgent | registration endpoint returned 500 (retried) — pending | https://payanagent.com |
eip155:8453)0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)0xC6F86e170411182114FcCdb28793dC76B5e8D144 (non-custodial)exact (EIP-3009), fallback facilitator: Dexter (Permit2)An x402 client decodes the 402, signs the EIP-3009 USDC authorization, and retries
with the PAYMENT-SIGNATURE header. See examples/ for runnable curl + JavaScript
(@x402/fetch) buyers — replace only the funded buyer key.
The Agent402 50-settlement gate affects Agent402 auto-dispatch only; direct x402 buyers (these examples) can purchase without Agent402 routing.
genesis-agent-tools.genesisagenttools.workers.dev
(find it via GET https://agent402.tools/api/route?q=<task>)GET /openapi.json · x402 manifest: GET /.well-known/x402GET /api/flagships · llms.txt: GET /llms.txt · Health: GET /health/catalog.json · /catalog.md.POST /api/mcp-schema-drift, POST /api/openapi-breaking-change,
POST /api/sdk-compatibility, POST /api/compatibility-suite, POST /api/batch-compatibility-audit,
POST /api/release-readiness, free POST /api/preflight.GENESIS AGENTS — ORIGIN (ERC-721) + GENESIS PASSES (ERC-1155). GET /nft.No private keys or seed material in this repository. GENESIS never holds buyer
funds and never requests private keys. Report issues via GitHub Issues. See SECURITY.md.
The GitHub Action and MCP adapter transmit only the API/schema artifacts you explicitly supply. Nothing else in your repository is read or uploaded; there is no server-side repo cloning, no IP/geolocation persistence, and no analytics trackers. Payment wallet addresses are necessarily public/on-chain.
Use GitHub Issues for product support and private GitHub Security Advisories for vulnerabilities. No personal contact details are required.
Discovery/documentation only. Proprietary source is sold separately under a non-exclusive GENESIS license.
This listing does not have a supported local package template. Use the maintainer’s documentation for its hosted endpoint, authentication, and client-specific setup. No install command has been inferred.
https://github.com/genesiscode2026/genesis-agent-tools/releases/download/v1.0.0/genesis-agent-mcp-v1.0.0.mcpbotherio.github.genesiscode2026/genesis-agent-mcp works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.
~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.~/.cursor/mcp.jsonRestart Cursor for changes to take effect..vscode/mcp.jsonReload VS Code window for changes to take effect.~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect..mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.