# Robinhood Chain Tokenized Stock Contract Verifier

> Robinhood Chain Tokenized Stock Contract Verifier is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Verifies whether a given contract address is the canonical on-chain representation of a tokenized stock or ETF on Robinhood Chain, or an impostor.

## Facts

- Endpoint: POST https://x402-services-production.up.railway.app/api/rh/verify
- Price: $0.05/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-tokenized-stock-contract-verifier-89e389b3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rolVdpxHonKN_IneRm1Py

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-tokenized-stock-contract-verifier-89e389b3 -d '<json body>'
```

Example prompt: Can you verify whether 0x4f3a...b2c1 is the legitimate canonical tokenized NVDA contract on Robinhood Chain, or if it's an impostor?

## When to prefer this

Use this endpoint when an agent needs to confirm the authenticity of a tokenized stock or ETF contract address on Robinhood Chain before trading, whitelisting, or displaying it to a user. Prefer this over general token lookup tools when the specific concern is impostor detection or canonical address confirmation for Robinhood Chain tokenized equities.

## Known failure modes

- Unknown ticker symbol returns error or null result
- Malformed 0x address rejected with validation error
- Address not found on Robinhood Chain returns unverified/impostor result
- Network timeout or Railway app downtime causes 5xx error
- Payment failure (insufficient USDC balance) blocks the call

## How this service works

Canonical contract verification for Robinhood Stock Tokens: given a ticker, returns the ONE official Robinhood Chain contract address (cross-checked live against the onchain symbol); or given an address, confirms whether it is the canonical token or an impostor. Send { ticker } or { address }. The anti-scam authenticity oracle for agents trading to

## Output

Returns a verification result indicating whether the provided contract address is the canonical, official tokenized stock or ETF contract on Robinhood Chain for the given ticker, or whether it is an impostor or unrecognized address. May include metadata about the canonical contract such as the official address, token name, and verification status.

## 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-tokenized-stock-contract-verifier-89e389b3/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)