# Tollex Receipt Verify

> Tollex Receipt Verify 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 set of trusted signer addresses, returning a signed verification result

## Facts

- Endpoint: POST https://api.tollex.org/tools/receipt_verify?utm_source=zero.xyz
- Price: $0.0079/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tollex-receipt-verify-39df8971
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qkDwwA23h5DxLYd-EcN5w

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability tollex-receipt-verify-39df8971 -d '<json body>'
```

Example prompt: Can you verify this x402 payment receipt I just received and check whether it was signed by one of my trusted wallets — 0xAbCd1234...5678 and 0xDeFa5678...9012?

## When to prefer this

Use this endpoint when you need to cryptographically verify an x402 payment receipt against a known set of trusted Ethereum signer addresses — particularly in autonomous agent workflows where a payment was made via Tollex in USDC on Base or USDG on Robinhood Chain and you need to confirm authenticity before granting access or logging the transaction. Prefer this over manual on-chain checks when you want policy-aware, Tollex-reconciled verification with a signed result.

## Known failure modes

- Receipt object is malformed or missing required fields — returns validation error
- No trusted signer addresses provided — may return unverifiable or error response
- Receipt signer does not match any trusted signer — returns invalid/unmatched status
- Invalid Ethereum address format in trustedSigners array — returns 400 or schema validation error
- Expired or already-reconciled receipt — may return rejection
- Network/upstream error on Base or Robinhood Chain lookup — returns 5xx

## 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

Returns a validation result indicating whether the receipt is cryptographically valid and whether its signer matches one of the provided trusted Ethereum addresses. Includes a signed verification status and details about the signer match.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "receipt": {
   "type": "object",
   "additionalProperties": true
  },
  "trustedSigners": {
   "type": "array",
   "items": {
    "type": "string",
    "pattern": "^0x[0-9a-fA-F]{40}$"
   },
   "maxItems": 10
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tool": {
   "id": "receipt_verify",
   "version": "1.0.0",
   "provider": "tollex.robinhood-chain"
  },
  "result": {
   "valid": true,
   "reasons": [],
   "recovered": "0x69d778C105b7f94Bde775d7ae94F1daa56DAA88F"
  },
  "evidence": [],
  "untrustedOutput": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tollex-receipt-verify-39df8971/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.tollex.org](https://www.zero.xyz/host/api.tollex.org/llms.txt)