# x402-toolbox Chain Transaction Receipt Lookup

> x402-toolbox Chain Transaction Receipt Lookup is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Fetches the on-chain transaction receipt for a given blockchain transaction using a pay-per-call x402 model (USDC on Base).

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/chain/transaction-receipt?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-toolbox-chain-transaction-receipt-lookup-46f639f6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JN0Kz7DAmsWAW7APNgJq0

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 x402-toolbox-chain-transaction-receipt-lookup-46f639f6
```

Example prompt: Can you look up the transaction receipt for the Base chain transaction with hash 0xabc123... and tell me if it was confirmed?

## When to prefer this

Use this endpoint when you need a fast, no-signup, pay-per-call lookup of an on-chain transaction receipt on Base (EVM), especially in agentic workflows where traditional API key management is impractical and USDC micropayments are acceptable. Prefer this over free RPC calls when you need a reliable, hosted service with deterministic behavior and no rate-limit overhead.

## Known failure modes

- Invalid or malformed transaction hash returns an error or empty receipt
- Transaction not yet mined returns no receipt or a pending status
- Payment not received (x402 unpaid) results in 402 response before tool executes
- Network or RPC errors may cause intermittent failures
- Querying a transaction from an unsupported chain may return an error

## How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

## Output

Returns a JSON object with an 'ok' boolean indicating request success and a 'paid' boolean confirming payment was processed, along with transaction receipt details such as confirmation status for the queried chain transaction.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "schema": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-toolbox-chain-transaction-receipt-lookup-46f639f6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-toolbox.shablony-pro.workers.dev](https://www.zero.xyz/host/x402-toolbox.shablony-pro.workers.dev/llms.txt)