# ExactGate x402 Base Transaction Receipt Lookup

> ExactGate x402 Base Transaction Receipt Lookup is a paid API for AI agents from exactgate-x402.insertnameheree.chatgpt.site, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Fetches a deterministic receipt for a Base blockchain transaction by hash, returning status, gas used, block number, and confirmation count, paid per call via x402 USDC.

## Facts

- Endpoint: GET https://exactgate-x402.insertnameheree.chatgpt.site/v1/base/receipt
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/exactgate-x402-base-transaction-receipt-lookup-23962578
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-alwybwRhsH_z3Y3J7SdK

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 exactgate-x402-base-transaction-receipt-lookup-23962578
```

Example prompt: Can you check whether the Base transaction 0x1111111111111111111111111111111111111111111111111111111111111111 went through — specifically how many confirmations it has and what block it landed in?

## When to prefer this

Choose this endpoint when you need deterministic, on-chain receipt data for a specific Base transaction and want a pay-per-call model via x402 USDC rather than managing your own RPC node or API key subscription. Ideal for agents that occasionally verify transactions without committing to a subscription, or for use in x402-native payment flows where USDC micropayments are already in use.

## Known failure modes

- Transaction hash not found on Base — returns found: false
- Invalid txHash format (not a 0x-prefixed 64-hex-char string) — rejected by input schema validation
- Transaction too recent with zero confirmations — may return confirmations: 0
- Network or RPC connectivity issues to Base — upstream errors possible
- Payment failure via x402 (insufficient USDC balance) — call rejected before execution

## How this service works

Deterministic Base receipt and transaction preflight APIs, paid per call with x402 USDC.

## Output

A JSON object containing: found (boolean), status ('success' or otherwise), gasUsed (string integer), blockNumber (integer), confirmations (integer), and transactionHash (string). Returns deterministic, verifiable on-chain receipt data for the queried Base transaction.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "txHash"
     ],
     "properties": {
      "txHash": {
       "type": "string",
       "pattern": "^0x[0-9a-fA-F]{64}$"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "found": true,
  "status": "success",
  "gasUsed": "21000",
  "blockNumber": 35420000,
  "confirmations": 124,
  "transactionHash": "0x1111111111111111111111111111111111111111111111111111111111111111"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/exactgate-x402-base-transaction-receipt-lookup-23962578/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from exactgate-x402.insertnameheree.chatgpt.site](https://www.zero.xyz/host/exactgate-x402.insertnameheree.chatgpt.site/llms.txt)