# Joe EVM RPC – Transaction Lookup

> Joe EVM RPC – Transaction Lookup is a paid API for AI agents from joe-evm-rpc.marnick-yezo.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Fetches full transaction details and receipt for a given EVM transaction hash on Base or Ethereum.

## Facts

- Endpoint: GET https://joe-evm-rpc.marnick-yezo.workers.dev/api/chain/tx/%7Bhash%7D
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/joe-evm-rpc-transaction-lookup-5eed652a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_P7Q0o7Idh1dD5galHXwP_

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 joe-evm-rpc-transaction-lookup-5eed652a
```

Example prompt: Can you look up the Base transaction 0xabc123...def456 and tell me whether it succeeded and what it did?

## When to prefer this

Choose this endpoint when you need to verify, audit, or inspect a specific EVM transaction by hash on Base or Ethereum mainnet. It is ideal for confirming payment finality, debugging failed transactions, or retrieving raw transaction data for on-chain activity. Prefer it over general-purpose blockchain explorers when you need a pay-per-call, agent-friendly JSON response without web scraping.

## Known failure modes

- Invalid or malformed transaction hash (not matching 0x + 64 hex chars) returns a validation error
- Transaction hash not found on the selected network returns a not-found or null result
- Network parameter mismatch (e.g. looking up a Base tx on Ethereum) returns no result
- x402 payment failure causes the request to be rejected before execution
- RPC node downtime or rate limiting may cause transient 5xx errors

## How this service works

Live Base and Ethereum RPC for AI agents: block tip, balances, transactions, and ENS. $0.001 USDC per call on Base.

## Output

Returns a JSON object containing the full transaction details (hash, from, to, value, data, etc.) and the transaction receipt (status 0x1 for success or 0x0 for failure), along with metadata about which RPC endpoint was used, the network, cost in USDC, and a request ID.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "pathParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "hash"
     ],
     "properties": {
      "hash": {
       "type": "string",
       "pattern": "^0x[a-fA-F0-9]{64}$",
       "description": "Transaction hash"
      },
      "network": {
       "enum": [
        "base",
        "ethereum"
       ],
       "type": "string",
       "default": "base",
       "description": "EVM network. Default base."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "receipt": {
    "status": "0x1"
   },
   "transaction": {
    "hash": "0xabc"
   }
  },
  "meta": {
   "rpc": "https://mainnet.base.org",
   "network": "base",
   "endpoint": "/api/chain/tx/{hash}",
   "cost_usdc": "0.001",
   "request_id": "00000000abcdef01"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/joe-evm-rpc-transaction-lookup-5eed652a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from joe-evm-rpc.marnick-yezo.workers.dev](https://www.zero.xyz/host/joe-evm-rpc.marnick-yezo.workers.dev/llms.txt)