MOpen-source tool · Robinhood Chain · open source
Robinhood Chain MCP + x402 facilitator
105 tools for the Arbitrum Orbit chain behind Robinhood's stock tokens, plus a deployed x402 facilitator settling USDG. Read-and-build only: never holds keys, never signs.
The work in one paragraph
Two public repos built in a weekend in July 2026 and CI-green since: an MCP server covering JSON-RPC, Arbitrum precompiles, explorer discovery, ERC-20/721/1155, Robinhood Stock Tokens, Uniswap v4, Chainlink and EIP-3009/2612 tooling, and a verify-only x402 facilitator for eip155:4663 running on Cloudflare Workers. Live tests run on a daily canary rather than per push, which is how the first canary caught a real bug.