M
MCP 401 Auth Fix | github PAT wiring | x402
github-mcp 401? PAT wiring. Proof before pay. x402 USDC Base. 15 min free.
Quick Install
Automated & IDE SetupCopy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.
Manual Client & Custom JSON ConfigExpand JSON ▾
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💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)
Documentation Overview
Second Eyes
Open infrastructure for autonomous agents. secondeyesai.com
Second Eyes is a multi-rail payment and verification substrate for wallet-equipped agents and the runtimes that authorize their tools. Agents call in, pay via x402 (USDC on Base), AP2 mandate, or Stripe ACP, and get deterministic verdicts — no sessions required for the one-shot path.
| Surface | Location |
|---|---|
| Live API + site | / — Cloudflare Pages (wrangler pages deploy public) |
| MCP npm package | packages/secondeye-mcp — @secondeyes/mcp-unblock |
| Agent entry | GET https://secondeyesai.com/api/bar |
| Agent instructions | public/llms.txt — how to pay, service catalog, one-shot routes |
| Help-me JSON packet | public/.well-known/help-me.json — machine-readable distress entry route |
| Agent card | public/.well-known/agent-card.json |
| Crawler policy | public/robots.txt |
The MCP package is a thin stdio client that proxies to the substrate API. Same codebase, same repo, same product.
Protocol anchors
| Layer | Protocol | Role |
|---|---|---|
| Identity / Reputation | ERC-8004 | Open registry — anyone queryable |
| Payments | x402 (USDC / Base) | Default machine rail — open HTTP 402, no allowlist |
| Payments | AP2 + VDC mandates | Gates internal ephemeral spawn only |
| Payments | Stripe ACP | Human or low-trust agent checkout |
| Discovery | x402 Bazaar / CDP | Substrate endpoints registered publicly |
| Transport | A2A / MCP | Existing |
Session-less x402 doors (autonomous agents)
No login, no session header. Pay USDC on Base via x402 v2 (PAYMENT-REQUIRED → sign → PAYMENT-SIGNATURE). Deterministic verdicts — same answer on every retry.
| Door | Path | Price |
|---|---|---|
| help-me (canonical meta-tool — looping, schema mismatch, context pressure, crash, handoff failure, wallet/spend-policy, grounding risk, auth/tool/sandbox failure, payment uncertainty) | /api/bar/x402/help-me | $0.01 |
| AWS AgentCore one-shot map | /api/bar/x402/aws-agent-survival | $0.01 |
peril-router (legacy alias of help-me) | /api/bar/x402/peril-router | $0.01 |
| Schema repair | /api/bar/x402/schema-repair | $0.03 |
| Context pressure (alias: token-pressure) | /api/bar/x402/context-pressure | $0.03 |
| Payment confirmation check | /api/bar/x402/payment-confirmation-check | $0.01 |
| Specialist one-shot routes | /api/bar/x402/{slug} | $0.01–$0.05 |
| Transcribe (audio/video/PDF) + meaning | /api/bar/x402/transcribe | $0.05 |
| Doc extract (invoice/contract/PDF) | /api/bar/x402/extract | $0.05 |
| Bazaar index check | /api/bar/x402/index-check | $0.05 |
| x402 format doctor | /api/bar/x402/doctor | $0.25 |
Full agent-facing docs: /llms.txt. Index new routes: node scripts/canary-pay.mjs.
Payment rails (x402 v2 accepts[])
Base (eip155:8453) is canonical and always accepts[0]. Polygon (eip155:137) and Solana are roadmap — do not sign for a planned rail. Live rail states: GET /api/bar → payment_activation.rail_states. See docs/multi-network-x402.md.
Wallet-equipped agent target profiles
Per-stack JSON profiles — match your stack, read your active failure modes and observable trigger signals, then call the named Second Eyes route.
Index: public/.well-known/wallet-agent-targets/index.json
| Target | Profile |
|---|---|
| Coinbase AgentKit + CDP + x402 | /.well-known/wallet-agent-targets/coinbase-agentkit-cdp.json |
| AWS AgentCore Payments + Strands | /.well-known/wallet-agent-targets/agentcore-strands.json |
| MCP clients with spending wallets | /.well-known/wallet-agent-targets/mcp-spending-wallets.json |
| Crossmint / Privy / Turnkey signer infra | /.well-known/wallet-agent-targets/wallet-infra-crossmint-privy-turnkey.json |
| LangGraph / CrewAI / AutoGen / OpenAI SDK + wallets | /.well-known/wallet-agent-targets/langgraph-crewai-openai-wallets.json |
| x402-native (ClawRouter / BlockRun / Zerion) | /.well-known/wallet-agent-targets/x402-native-blockrun-clawrouter-zerion.json |
Install (agents)
Develop
Secrets (never commit): copy .env.example → .env.local, then node scripts/push-coinbase-secrets.mjs. Required for transcribe/extract: OPENROUTER_API_KEY.
After adding x402 routes, settle once each for CDP Bazaar indexing: node scripts/canary-pay.mjs.
Publish MCP package
From repo root, tag mcp-vX.Y.Z (or run workflow manually). Uses npm Trusted Publishing (OIDC) — configure once on npmjs.com. See packages/secondeye-mcp/PUBLISH.md.
Deprecated repo
The standalone secondeye-mcp repository is retired — all development happens here.
Terminology normalization summary (issue #40)
| Before | After |
|---|---|
| Anthropomorphic route label | Canonical slug-style route label |
| Theatrical route wording | Technical route wording |
| Prepper/theatrical route-group wording | Specialist one-shot route-set wording |
| Legacy catalog wording | Service-catalog wording |
Related MCP Servers
Frequently Asked Questions about MCP 401 Auth Fix | github PAT wiring | x402
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