pay-mcp

Starknet RPC endpoint. Optional. The buy command contacts no node unless you name one (a Starknet mainnet node; the chain it serves must then be the offer's). The chain-reading tools default to a public node not operated by Vauban.

Starknet Sepolia account address for make_payment signer mode. Optional; without it make_payment uses the sponsored mode, which calls the sponsor over the network and settles a real Sepolia transfer it funds.

Private key for that account. Optional; never required to try the tools.

Standard x402 path (Starknet): comma-separated payTo addresses pay_for_resource may pay. Empty pays nobody (fail closed). * pays any payee: avoid it.

Standard x402 path: cap on one payment in atomic units (default 0.1 STRK).

Standard x402 path: a signer of its own (falls back to PAY_MCP_SEPOLIA_*).

Private key for that account. Optional.

EVM path: path to your Web3 Secret Storage v3 keystore. Never a key in the environment.

EVM path: path to the file holding that keystore's password.

EVM path: comma-separated CAIP-2 networks pay_for_resource may pay on, e.g. eip155:84532. Empty pays nothing (fail closed).

EVM path: comma-separated payTo addresses pay_for_resource may pay. Empty pays nobody (fail closed). * pays any payee, up to the session cap: avoid it.

EVM path: cap on one payment, in atomic units of the asset (1000000 = 1 USDC). No default: unset refuses.

EVM path: cap on the total value of the signed authorizations this process hands over, per network and asset, never credited back. No default: unset refuses.

EVM path: comma-separated CAIP-2 value networks you consent to spend real money on, each named (e.g. eip155:8453). Required for any network other than Base Sepolia and Ethereum Sepolia.

EVM path: comma-separated <CAIP-2>/<token address> entries payable. Default: the network's known USDC only.