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x402-coffer — Payment Facilitator 🟡 Beta

x402-coffer is an x402 facilitator: the trust layer that verifies and settles payments between agents and paid APIs — so neither side holds payment risk.

What a facilitator does​

 Agent ──"verify this payment"──▶ coffer ──▶ checks signature, amount, expiry
                                   │
                                   └──settle──▶ on-chain transfer to the resource server
  1. Verify — signature validity, correct recipient, amount ≥ required, replay protection.
  2. Settle — submit the transfer on-chain and return the receipt.
  3. Abstract chains — resource servers implement one HTTP flow regardless of network.

Why run your own?​

  • Your settlement wallet, your custody.
  • No third party sees your payment metadata.
  • Free to run — coffer is open source and costs one container.

The rmi-mcp-x402 marketplace settles through our coffer instance by default.

Repo: git.rugmunch.io/RugMunchMedia/x402-coffer