Pay-mcp Server

Pay-mcp is an MCP integration. X402 tools for MCP clients: pay exact/Starknet or STARK-receipt 402s, verify, JCS-hash. No account.

Packages and local setup

The published npm package is @vauban-pay/mcp, version 0.7.1. Its declared MCP transport is stdio.

The package declares STARKNET_RPC_URL: Starknet Sepolia RPC endpoint for the two chain-reading tools. Optional; defaults to a public node not operated by Vauban.; PAY_MCP_SEPOLIA_ACCOUNT_ADDRESS: Starknet Sepolia account address enabling make_payment chain mode. Optional; without it make_payment returns a hash-only pending result with no network call.; PAY_MCP_SEPOLIA_PRIVATE_KEY: Private key for that account. Optional; never required to try the tools.; PAY_MCP_STANDARD_X402_PAYEES: Standard x402 path: comma-separated payTo addresses pay_for_resource may pay, or for any. Empty pays nobody (fail closed).; PAY_MCP_STANDARD_X402_MAX_WEI: Standard x402 path: cap on one payment in atomic units (default 0.1 STRK).; PAY_MCP_STANDARD_X402_ACCOUNT_ADDRESS: Standard x402 path: a signer of its own (falls back to PAY_MCP_SEPOLIA_).; PAY_MCP_STANDARD_X402_PRIVATE_KEY: Private key for that account. Optional..

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry. This profile uses version 0.7.1 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

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