IronBridge is a keyless gate that sits under your AI agent: it can pay per call, but it can’t move your money. Every call it clears leaves a receipt anyone can re-walk — no IronBridge key.
Fire an unpaid call and watch the gate refuse. The model can ask; it can’t pay.
What comes back — the exact price and where to pay, and zero data until you do:
Then re-walk the public receipt chain yourself — read-only, no key:
Prefer to watch it? See a real receipt re-walk itself in your browser — no signup, no wallet.
Keyless MCP server. Your agent gets the gate and the receipts; you hold the keys.
Published and installable right now — verify it on npm.
Send USDC to the receiver Safe shown in the 402 response — your wallet signs, IronBridge holds no key — then resend with your tx hash. Four lanes live: SOLVR (DEX data) · CLERK (US court records) · BNKR (LLM gateway) · GITLAWB (app rails).
One Cloudflare Worker into your account — the gate, the chain, the rate limiter. You keep the only keys; anyone can still re-walk your receipts.
A receipt that binds payment → exact result in a keyless, re-walkable hash-chain you recompute yourself. No IronBridge key, no trust-us. The read-only verifier returns RESULT: OK when the chain links end-to-end.