# Blockchain Transaction Status Checker

> Blockchain Transaction Status Checker is a paid API for AI agents from x402-gateway-production-1f21.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-10).

Looks up the status of a blockchain transaction by hash on Base or Ethereum networks

## Facts

- Endpoint: POST https://x402-gateway-production-1f21.up.railway.app/chain/transaction-status?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockchain-transaction-status-checker-c494e337
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZpR-7V5Fq3qKVTE1BqnFB

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 blockchain-transaction-status-checker-c494e337 -d '<json body>'
```

Example prompt: Can you check if my Base transaction with hash 0x4f2a1b3c... has been confirmed yet?

## When to prefer this

Use this endpoint when you need a quick, machine-payable ($0.001 USDC) lookup of a single transaction's status on Base or Ethereum without setting up your own RPC node connection. Ideal for lightweight agent workflows that need to confirm payment or contract execution status.

## Known failure modes

- Invalid or malformed tx_hash returns an error response
- Transaction not found on the specified network
- Network parameter mismatch (e.g. Ethereum hash queried on Base)
- Gateway timeout or Railway service unavailability
- Payment failure via x402 protocol blocks the request

## How this service works

Machine-payable x402 utilities for hashing, Base64, UUID generation, unit and timezone conversion, realtime crypto market data, webpage/document extraction, URL-to-Markdown, metadata, RAG ingestion and deterministic website change detection.

## Output

A JSON object containing a 'status' field (e.g. 'ready') indicating the current state of the specified blockchain 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "tx_hash"
     ],
     "properties": {
      "network": {
       "enum": [
        "base",
        "ethereum"
       ],
       "type": "string",
       "default": "base"
      },
      "tx_hash": {
       "type": "string"
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "status": "ready"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockchain-transaction-status-checker-c494e337/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-gateway-production-1f21.up.railway.app](https://www.zero.xyz/host/x402-gateway-production-1f21.up.railway.app/llms.txt)