# Robinhood Chain Tokenized Stock Registry

> Robinhood Chain Tokenized Stock Registry is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Returns a machine-readable registry mapping every Robinhood Chain tokenized equity symbol to its on-chain contract address, including USDG.

## Facts

- Endpoint: POST https://x402-services-production.up.railway.app/api/rhchain/registry
- Price: $0.002/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-registry-2093259e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_itnTbG5XnrqW_3-1kjKLV

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-registry-2093259e -d '<json body>'
```

Example prompt: Give me the full Robinhood Chain tokenized stock registry — I need the contract addresses for all tokenized equities and USDG so I can interact with them on-chain.

## When to prefer this

Choose this endpoint when you need the authoritative, machine-readable mapping of tokenized equity symbols to their Robinhood Chain contract addresses. It is the only known structured registry for this chain, making it essential for any agent or bot that needs to resolve tickers to contract addresses before executing on-chain transactions involving RH tokenized stocks or USDG.

## Known failure modes

- Empty or malformed request body may return a 400 error
- Service unavailability on Railway infrastructure returns 503
- Registry may be stale if Robinhood Chain adds new tokenized equities after last update
- Payment failure (insufficient USDC) returns 402 before any data is served

## How this service works

THE canonical Robinhood Chain tokenized-stock registry: every RH tokenized equity symbol -> contract address, plus USDG. The first machine-readable registry for this chain. Send {}.

## Output

A structured registry object mapping every Robinhood Chain tokenized equity ticker symbol (e.g. AAPL, TSLA, NVDA) to its corresponding smart contract address, plus the USDG stablecoin contract address — all verified addresses for the RH chain ecosystem.

## 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-registry-2093259e/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)