# Robinhood Chain Latest Block Info

> Robinhood Chain Latest Block Info is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Returns the latest block details for Robinhood Chain (chainId 4663), including block number, timestamp, transaction count, gas used, and base fee.

## Facts

- Endpoint: POST https://x402-services-production.up.railway.app/api/rhchain/block
- 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/robinhood-chain-latest-block-info-efbfc415
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-kPeQtqef7BB2Nk-YBVlz

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-latest-block-info-efbfc415 -d '<json body>'
```

Example prompt: What's the latest block on Robinhood Chain right now — give me the block number, timestamp, transaction count, gas used, and base fee?

## When to prefer this

Choose this endpoint when you need real-time chain tip data specifically for Robinhood Chain (chainId 4663), particularly when monitoring liveness, estimating gas costs, or verifying block production as part of an on-chain trading or DeFi workflow. It is the first and only paid RPC suite for this chain.

## Known failure modes

- Chain node unavailable or syncing — may return stale or error response
- Network timeout if the RPC provider is overloaded
- Payment failure if USDC balance is insufficient for $0.001 per-call fee
- Malformed request body returns validation error

## How this service works

Robinhood Chain latest block: number, timestamp, tx count, gas used, base fee. The chain tip for RH Chain (chainId 4663) - the first paid RPC suite for this chain. Send {}.

## Output

Returns the latest block details for Robinhood Chain (chainId 4663): block number, block timestamp, transaction count, gas used, and base fee — the current chain tip state.

## 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-latest-block-info-efbfc415/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)