# SwogeAgentic Robinhood Chain JSON-RPC

> SwogeAgentic Robinhood Chain JSON-RPC is a paid API for AI agents from web-production-220a3.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-17).

Executes a single read-only JSON-RPC call against Robinhood Chain (chain ID 4663) without requiring a node

## Facts

- Endpoint: POST https://web-production-220a3.up.railway.app/agentic/call/robinhood_rpc?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/swogeagentic-robinhood-chain-json-rpc-f1876e40
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_w0NBi3mnbk6_qHQ5sVjNi

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 swogeagentic-robinhood-chain-json-rpc-f1876e40 -d '<json body>'
```

Example prompt: What is the current ETH balance of address 0xABC123... on Robinhood Chain — just call eth_getBalance for me so I don't have to run a node.

## When to prefer this

Use this endpoint when you need a raw, low-level read from Robinhood Chain (chain ID 4663) and do not want to run or maintain your own node. It supports all 14 standard read-only eth_ JSON-RPC methods. Prefer this over higher-level sibling endpoints when you need precise on-chain data — storage slots, raw call results, or log filtering — rather than decoded or aggregated outputs. At $0.005 per call it is cost-effective for single-shot queries.

## Known failure modes

- Invalid or unsupported RPC method — only the 14 enumerated eth_ methods are accepted
- Missing required 'method' field in arguments — returns validation error
- Malformed params array for the chosen method (e.g. missing address for eth_getBalance)
- Payment failure — insufficient USDC/USDG/$SWOGE or wrong payment network
- Node-side RPC error — execution reverted, block not found, or internal chain error
- Rate limiting or endpoint unavailability on Railway infrastructure

## How this service works

Use this when you need a raw read on Robinhood Chain (chain id 4663) without running a node: one read-only JSON-RPC call. Price: $0.005 in USDC on Base or Solana, or $0.02 in USDG or $SWOGE on Robinhood Chain (tool price + settlement cost, minimum $0.02).

## Output

Returns the raw JSON-RPC response from Robinhood Chain for the requested method, including result fields like balance (in wei), block data, transaction details, receipt status, gas estimates, log arrays, or storage values depending on the method called.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "arguments": {
   "type": "object",
   "required": [
    "method"
   ],
   "properties": {
    "method": {
     "enum": [
      "eth_blockNumber",
      "eth_chainId",
      "eth_gasPrice",
      "eth_getBalance",
      "eth_getCode",
      "eth_getTransactionCount",
      "eth_getStorageAt",
      "eth_call",
      "eth_estimateGas",
      "eth_getTransactionByHash",
      "eth_getTransactionReceipt",
      "eth_getBlockByNumber",
      "eth_getBlockByHash",
      "eth_getLogs"
     ],
     "type": "string"
    },
    "params": {
     "type": "array"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/swogeagentic-robinhood-chain-json-rpc-f1876e40/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from web-production-220a3.up.railway.app](https://www.zero.xyz/host/web-production-220a3.up.railway.app/llms.txt)