Robinhood Chain had no payment facilitator. So we became one, and settled the first x402 payments in the chain's history. Open source, ~50 lines to integrate.
The chain's own contracts verify every signature. Simulate first (invalid payments revert at zero cost), then submit and credit on receipt. Watch a payment fly:
The signature move. Drag the coin all the way right to settle a pretend payment the exact way a real one flows.
Every claim links to the chain. That's the whole point.
EIP-3009 transferWithAuthorization, settled with zero payer gas.
0x9b1368e4…0e2918
First Permit2 settlement
Witness-pinned Permit2 via the canonical x402 proxy. Works for any ERC-20.
0xd141615e…22c0cf
Anchored forever
The record of the firsts, written on-chain as a keylessly readable public checkpoint.
AgentMemory · instance 14
// npm i github:walter-grace/x402-robinhood import { settleOnRobinhood } from "x402-robinhood/settle.mjs"; // after your 402 quote + decoding the X-PAYMENT header (30 lines, see examples/): const result = await settleOnRobinhood(payment, { asset: USDG, payTo: YOUR_WALLET, maxAmountRequired: "100000", // $0.10 }); if (result.ok) deliver(result.payer, result.txHash); // ✅ settled on-chain