# Robinhood Chain Contract Inspector

> Robinhood Chain Contract Inspector is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Inspects an EVM address on Robinhood Chain to determine if it is a contract, its bytecode size, verified name and compiler, and ABI availability.

## Facts

- Endpoint: POST https://x402-services-production.up.railway.app/api/rhchain/contract
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/robinhood-chain-contract-inspector-f5bd7b81
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FtmZ8pcU0Hg3mEo1FsPKc

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 robinhood-chain-contract-inspector-f5bd7b81 -d '<json body>'
```

Example prompt: Can you check if 0x1234...abcd is a smart contract on Robinhood Chain, and if so, tell me its verified name, compiler, and whether the ABI is available?

## When to prefer this

Use this endpoint when you need on-chain contract metadata specifically on Robinhood Chain — particularly to distinguish contracts from wallets, retrieve verified names, check ABI availability before integrating, or vet an address before interacting with it. Prefer this over generic EVM explorers when the target chain is Robinhood Chain and you need a structured, pay-per-call API response rather than scraping a block explorer UI.

## Known failure modes

- Invalid or malformed EVM address returns an error
- Address exists but has no verified source code — partial result with no name/compiler
- Address is an EOA (wallet), not a contract — returns isContract: false with no further metadata
- Network/RPC unavailability causes timeout or upstream error
- Rate limiting or payment failure returns 402 or 429

## How this service works

Robinhood Chain contract inspector: is it a contract, code size, verified name/compiler, ABI availability. Send { address }.

## Output

Returns whether the address is a contract (boolean), the on-chain bytecode size, verified contract name and compiler details (if available), and whether an ABI is accessible — giving a complete metadata snapshot of the address on Robinhood 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json"
     ],
     "type": "string"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/robinhood-chain-contract-inspector-f5bd7b81/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-services-production.up.railway.app](https://www.zero.xyz/host/x402-services-production.up.railway.app/llms.txt)