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Tollex x402 Receipt Verifier
x402
Tollex x402 Receipt Verifier is a paid API for AI agents from api.tollex.org, paid per call via x402, $0.0079/call, status unknown (last checked 2026-10-11).
Verifies and validates an x402 payment receipt against a merchant's keys URL and a set of trusted signer addresses, returning a signed confirmation of payment validity.
Price / call$0.0079
Success—
StatusUnknown
How this service works
Tollex lets software agents buy APIs and tools under rules you set: it finds a capability that fits, checks your policy before anything is signed, pays with x402 in USDC on Base or USDG on Robinhood Chain, reconciles uncertain payments and returns a signed receipt.
Output
A verification result indicating whether the receipt is valid, including a signed confirmation from Tollex, details about which trusted signer authenticated the payment, and any reconciliation notes for uncertain or borderline payment states.
Example use cases
Gating API access behind x402 payment
“Before I unlock this premium data endpoint for the requesting agent, verify its x402 receipt using the keys at https://api.myservice.com/v1/keys and confirm the signer matches 0xDeAdBeEf1234567890abcdef1234567890abcdef.”
Reconciling uncertain micropayment
“An agent paid me via x402 but I'm not sure the receipt is genuine — can you validate it against https://merchant.tollex.org/v1/quote and check it was signed by either 0xAaaa1111111111111111111111111111111111aa or 0xBbbb2222222222222222222222222222222222bb?”
Auditing agent payment trail
“We got a batch of x402 receipts from autonomous agents and need to confirm one of them is legitimately signed — verify this receipt against the merchant's keys at https://payments.myplatform.io/keys and trusted signer 0xCccc3333333333333333333333333333333333cc.”
Technical details
Endpoint
POSThttps://api.tollex.org/tools/x402_verify_receipt?utm_source=zero.xyzWhen to prefer
Use this endpoint when you are a merchant or service provider that has received an x402 payment receipt from an autonomous agent and need to cryptographically verify it before delivering your service. It is ideal for real-time access gating, post-payment reconciliation, and audit trails in agent-to-agent commerce. Prefer this over manual on-chain verification when you need policy-checked, signed confirmation with uncertain-payment handling baked in.
Side effects
- Invalid or unreachable keysUrl returns a fetch or DNS error
- Receipt object malformed or missing required fields returns a validation error
- No trusted signer matches the receipt signature returns an invalid-signer error
- Network timeout reaching the merchant keys endpoint
- Receipt already expired or nonce reused returns a replay-attack error
- Unsupported receipt schema version
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| keysUrl | string | |
| receipt | object | |
| trustedSigners | array |
Output
Schema · Response
{
"type": "json",
"example": {
"tool": {
"id": "x402_verify_receipt",
"version": "1.0.0",
"provider": "tollex.robinhood-chain"
},
"result": {
"valid": true,
"reasons": [],
"recovered": "0x69d778C105b7f94Bde775d7ae94F1daa56DAA88F"
},
"evidence": [],
"untrustedOutput": false
}
}Tags
x402
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