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TheLoopBreaker Belief Attestation Filer
x402
TheLoopBreaker Belief Attestation Filer is a paid API for AI agents from theloopbreaker.com, paid per call via x402, $0.050000/call, status unknown (last checked 2026-09-15).
Prepares an unsigned blockchain transaction to file a zero-knowledge belief attestation on the BeliefAttestationVerifier smart contract, funded by a $0.25 USDC x402 payment
Price / call$0.050000
Success—
StatusUnknown
How this service works
File a belief attestation on the BeliefAttestationVerifier contract (zk proof + public inputs). Pay $0.25 USDC, receive a fully-encoded unsigned transaction, sign in your wallet. No private keys handled server-side.
Output
Returns a fully ABI-encoded unsigned transaction ready to be signed in the caller's wallet. The response includes the transaction payload targeting the BeliefAttestationVerifier contract, along with the x402 payment receipt confirming the $0.25 USDC charge. No private keys are transmitted or handled server-side.
Example use cases
Example prompt
“File a belief attestation on the BeliefAttestationVerifier contract using my wallet 0xYourWallet, zk proof 0x1234567890abcdef..., and public inputs [0xabcdef1234567890...] — give me the unsigned transaction I can sign myself.”
Technical details
Endpoint
POSThttps://theloopbreaker.com/api/x402/actions/file-attestationWhen to prefer
Use this endpoint when you need to file a cryptographically verifiable belief attestation on-chain using a zero-knowledge proof, and want a server-side transaction encoder that never touches your private keys. Ideal for agents operating in the Vaultfire/TheLoopBreaker ecosystem that need to anchor beliefs to the BeliefAttestationVerifier smart contract on Base or supported mainnet chains.
Side effects
- Missing X-PAYMENT header returns HTTP 402 with payment instructions and accepted asset details
- Invalid or malformed zk proof bytes result in encoding failure
- Public inputs array mismatch with the proof causes contract-level rejection
- Wallet address not provided or malformed returns validation error
- Payment amount insufficient or asset mismatch triggers x402 rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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