Verify a receipt
Paste a proof bundle; your browser checks signatures, log positions and history. No data upload.
Open Verify a receipt ↗Curbi / Explore
Start with a working example. Inspect the failure. Take the code into your own application.
Paste a proof bundle; your browser checks signatures, log positions and history. No data upload.
Open Verify a receipt ↗Attestations, receipts and an RFC 9162 append-only log, with 16 conformance vectors.
Open Curbi Proof spec ↗Replay six refund failures through an MCP fault proxy; inspect duplicate writes and false success.
Open MCP Chaos ↗Initialize, list tools and call one: live JSON-RPC from your browser.
Open MCP console ↗See what each tool can verify and how to try it.
Open Six promises ↗Reproduce a duplicate refund, inspect the candidate adapter, and download a runnable regression.
Open Repair Lab ↗Set a refund limit. Trigger a timeout. Inspect permission, recovery and reply checks.
Open Action Lab ↗Check replies against configured prices, forbidden promises and supplied action records.
Open Policy Check ↗Build a policy, test a reply, export the request and save private projects.
Open Policy Studio ↗A structured reply check in one HTTP request. Single replies or batches of up to 50.
Open Check API ↗Policy checks and public documentation search over a read-only MCP connection.
Open Curbi MCP ↗A pass means no configured rule fired. It grants no execution authority or provider-completion proof.