# Free Asset Radar x402 Base Receipt Lookup

> Free Asset Radar x402 Base Receipt Lookup is a paid API for AI agents from free-asset-radar-x402.besenok2018.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Retrieves the on-chain receipt for an x402 payment on Base (EIP-155:8453), returning fee, status, and confirmation details.

## Facts

- Endpoint: GET https://free-asset-radar-x402.besenok2018.workers.dev/api/x402/base-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/free-asset-radar-x402-base-receipt-lookup-d7861e94
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-K_cxbS1AIj94iqhM7h6e

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 free-asset-radar-x402-base-receipt-lookup-d7861e94
```

Example prompt: Can you check whether my recent x402 payment on the Base network went through and pull up the receipt — I want to know the fee in ETH and whether it's still pending?

## When to prefer this

Use this endpoint when you need to verify or audit x402 micropayments specifically on the Base (EIP-155:8453) network. It is ideal for autonomous agents that need to confirm their own payments settled before proceeding, or for developers debugging x402 payment flows on Base. Prefer this over generic blockchain explorers when you want a structured JSON receipt tailored to the x402 protocol format.

## Known failure modes

- Payment ID not found — returns found: false with success: false
- Transaction still pending — returns pending: true, success may be false
- Network mismatch — query may return no result if wrong chain referenced
- Invalid or malformed payment reference — likely returns error or found: false
- Edge worker timeout — rare but possible under high load

## How this service works

Stable edge-hosted x402 utilities for autonomous agents.

## Output

Returns a JSON object indicating whether a receipt was found (found: boolean), the fee paid in ETH (feeEth: string), the network identifier (network: 'eip155:8453' for Base), whether the transaction is still pending (pending: boolean), and whether it succeeded overall (success: boolean).

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "found": true,
  "feeEth": "0.000001",
  "network": "eip155:8453",
  "pending": false,
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/free-asset-radar-x402-base-receipt-lookup-d7861e94/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from free-asset-radar-x402.besenok2018.workers.dev](https://www.zero.xyz/host/free-asset-radar-x402.besenok2018.workers.dev/llms.txt)