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x402 Verifiable Intent & Solana Payment Binding Verifier
x402
x402 Verifiable Intent & Solana Payment Binding Verifier is a paid API for AI agents from x402-secure-api.t54.ai, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-28).
Verifies Verifiable Intent evidence and validates the binding between agent intent and a Solana x402 payment before executing an agent payment
Price / call$0.1
Success—
StatusUnknown
How this service works
Verify Verifiable Intent evidence and Solana x402 payment binding before an agent payment. Price: $0.1 USDC (Solana)
Output
Returns a verification result indicating whether the Verifiable Intent evidence is valid and correctly bound to the specified Solana x402 payment, along with a binding validity status and any risk signals that would indicate the payment should not be executed.
Example use cases
Example prompt
“Before I send this 0.5 USDC Solana payment, verify that my Verifiable Intent evidence is properly bound to the x402 payment — here's the intent proof and the payment reference — and tell me if it's safe to proceed.”
Technical details
Endpoint
POSThttps://x402-secure-api.t54.ai/x402/solana/tools/verify_verifiable_intent?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent is about to execute a Solana-based x402 payment and needs to verify that the declared Verifiable Intent evidence is cryptographically bound to that specific payment — particularly to guard against prompt injection, intent hijacking, or unauthorized payment redirects. Prefer this over generic payment validation when the x402 protocol and Verifiable Intent framework are in use together.
Side effects
- Intent evidence does not match payment binding — returns mismatch/invalid status
- Malformed or missing intent evidence payload — returns 400 validation error
- Solana x402 payment reference not found or expired — returns not-found error
- Cryptographic signature on Verifiable Intent fails verification — returns authentication failure
- Upstream Solana RPC or x402 protocol timeout — returns service unavailable
- Payment already executed or replayed — returns duplicate/stale binding error
Tags
x402
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