# Task Radar ABI Lookup (Sourcify)

> Task Radar ABI Lookup (Sourcify) is a paid API for AI agents from task-radar-x402.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-31).

Fetches the verified contract ABI, compiler info, and Sourcify verification status for a smart contract address on a supported EVM chain

## Facts

- Endpoint: GET https://task-radar-x402.vercel.app/api/abi?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/task-radar-abi-lookup-sourcify-49dae2eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4gzxmt4YlQWvhLafVUAKl

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 task-radar-abi-lookup-sourcify-49dae2eb
```

Example prompt: Can you fetch the verified ABI and compiler info for the contract at 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 on Ethereum?

## When to prefer this

Use this endpoint when you need the verified ABI or compiler metadata for a smart contract and want Sourcify-backed verification status rather than Etherscan. Preferred when working across multiple chains (Base, Arbitrum, Optimism, Polygon, BSC) with a single unified API and x402 micropayment access. Choose this over Etherscan-based alternatives when you care about open, decentralized verification provenance via Sourcify.

## Known failure modes

- Contract not verified on Sourcify — returns unverified or 404 status
- Invalid contract address format — request fails with validation error
- Unsupported chain specified — returns error indicating valid chain options
- Contract exists on-chain but was never submitted to Sourcify — no ABI available
- Network timeout fetching from Sourcify upstream

## How this service works

Verified contract ABI + compiler/verification status (Sourcify). Chains: ethereum, base, arbitrum, optimism, polygon, bsc. 0.02 USDC/call on Base.

## Output

Returns the full verified contract ABI (as a JSON array of function/event/error descriptors), along with compiler version, language, verification status (e.g. fully verified, partially verified), and Sourcify metadata for the requested contract address on the specified chain.

## 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": {
     "const": "http"
    },
    "method": {
     "const": "GET"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "chain": {
       "type": "string",
       "description": "ethereum|base|arbitrum|optimism|polygon|bsc (default ethereum)"
      },
      "address": {
       "type": "string",
       "description": "Contract address 0x..."
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/task-radar-abi-lookup-sourcify-49dae2eb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from task-radar-x402.vercel.app](https://www.zero.xyz/host/task-radar-x402.vercel.app/llms.txt)