# Agent Tollgate Engine – Transaction Status Lookup

> Agent Tollgate Engine – Transaction Status Lookup is a paid API for AI agents from skinwinking.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).

Looks up the on-chain status of a transaction (confirmed, pending, failed) by tx hash or signature across multiple blockchains.

## Facts

- Endpoint: GET https://skinwinking.com/api/v1/data/tx-status?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-tollgate-engine-transaction-status-lookup-39bff993
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5OFjsbU9TiRbwZ94i1vlA

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 agent-tollgate-engine-transaction-status-lookup-39bff993
```

Example prompt: Can you check if my Base transaction 0x4a3b2c1d... has been confirmed yet, and tell me how many block confirmations it has?

## When to prefer this

Use this endpoint when an agent needs to programmatically verify whether a specific on-chain transaction has settled, how many confirmations it has, or which block it landed in — across Solana, Ethereum, Base, Polygon, or Arbitrum — without requiring a full blockchain node or RPC provider integration. Ideal for post-payment verification, bridge monitoring, or DeFi trade settlement checks.

## Known failure modes

- Invalid or malformed tx hash returns an error response
- Unsupported chain value returns validation error
- Transaction not yet indexed returns pending or not-found status
- Network congestion may cause stale or delayed confirmation counts
- Solana signature format differs from EVM 0x hash — mixing them causes lookup failure

## How this service works

50 pay-per-call tools for agents over x402 (USDC on Base, Polygon, Solana): crypto market data, token audits, indicators, swap routing, web extraction, DNS/WHOIS/email checks, FX, weather and AI text/image tools.

## Output

Returns a JSON object with the transaction status (e.g. 'confirmed', 'pending', 'failed'), the block number it was included in, and the number of confirmations accumulated so far.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "chain",
      "tx"
     ],
     "properties": {
      "tx": {
       "type": "string",
       "description": "Solana signature or 0x transaction hash"
      },
      "chain": {
       "enum": [
        "solana",
        "ethereum",
        "base",
        "polygon",
        "arbitrum"
       ],
       "type": "string",
       "description": "One of solana, ethereum, base, polygon, arbitrum"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "block": 12345678,
  "status": "confirmed",
  "confirmations": 12
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-tollgate-engine-transaction-status-lookup-39bff993/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from skinwinking.com](https://www.zero.xyz/host/skinwinking.com/llms.txt)