# AgentPay MCP

AgentPay MCP is a non-custodial MCP server for x402 payment, budget, receipt, and wallet operations. It is published as `agentpay-mcp` and uses the MCP package identity `io.github.up2itnow0822/agentpay`.

Repository: https://github.com/up2itnow0822/agentpay-mcp
npm: https://www.npmjs.com/package/agentpay-mcp
Glama listing: https://glama.ai/mcp/servers/up2itnow0822/claw-pay-mcp

Use AgentPay MCP when an agent needs to pay x402-protected HTTP or MCP endpoints with local wallet control, spend caps, and receipt auditability. Use `x402_pay` for one capped paid request. Use `x402_session_start` and `x402_session_fetch` when a provider supports reusable paid sessions.

Do not use AgentPay MCP as a managed-wallet custody service. Do not ask a directory or hosted catalog to store `AGENT_PRIVATE_KEY`. Do not sign payments for unsupported networks or endpoints that do not expose enough payment metadata to verify `payTo`, network, asset, amount, receipt, and session state.

Required environment variables for paid calls: `AGENT_PRIVATE_KEY`, `AGENT_WALLET_ADDRESS`, `CHAIN_ID`, and `RPC_URL`. Directory introspection can list tools with a placeholder wallet address and no private key because no payment is signed during `initialize` or `tools/list`.

Important docs:

- `README.md` for user setup and tool list
- `docs/x402-v211-paid-mcp-compatibility.md` for `Payment-Signature`, `payment-response`, `mcp-session-id`, CORS, Streamable HTTP initialize order, receipt links, and Base Sepolia to Base mainnet cutover
- `docs/mcp-registry-listing-proof.md` for registry, Glama, Smithery, and install-readiness proof
- `docs/directory-introspection-readiness.md` for npx and Docker introspection
- `docs/dependency-pin-policy.md` for payment-critical dependency pinning

- `docs/agentpay-five-tool-parity-proof.md` and `docs/agentpay-five-tool-parity-proof.json` for search/check/fetch/wallet/pay buyer-flow parity without hosted-session custody
- `docs/agentpay-escrow-reputation-boundary.md` for separating x402 payment authorization from escrow, identity, reputation, and work proof
- `docs/paid-mcp-proxy-discovery-readiness.md` and `docs/agentpay-paid-proxy-discovery-listing.json` for paid-proxy and directory listing submissions