Schema Gate sits between AI-generated JSON and production actions. It evaluates committed schema and acceptance rules, returns a machine-readable ACCEPT or REJECT decision, and signs a verifiable receipt. Purchases use x402 v2 on Solana at 0.010 USDC per completed evaluation. Malformed and pre-settlement failures are free; exact retry and recovery do not charge twice.
I built Schema Gate after repeatedly seeing agent workflows fail at the boundary between model output and production systems. It validates candidate JSON against explicit, committed criteria and returns a signed ACCEPT or REJECT receipt. The Python client is public, wallet keys stay local, and exact retries and recovery do not charge twice. It is a live beta on Solana x402 v2 at 0.010 USDC per completed evaluation. I am looking for the first production integrations and candid feedback on where receipt enforcement is most useful.