# Hermes Agent Data Services – Robinhood Chain Token Launch Scanner

> Hermes Agent Data Services – Robinhood Chain Token Launch Scanner is a paid API for AI agents from x402-agent.majighufron.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-22).

Returns recent token launches deployed on Robinhood Chain (chain ID 4663) for a given wallet address, scanning a configurable window of blocks.

## Facts

- Endpoint: GET https://x402-agent.majighufron.workers.dev/api/rh-dev?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hermes-agent-data-services-robinhood-chain-token-launch-scanner-a1267d3b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yz4XAMc_PFsmiNWb7BKYs

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 hermes-agent-data-services-robinhood-chain-token-launch-scanner-a1267d3b
```

Example prompt: Show me all tokens launched by wallet 0xffc2...abcd on Robinhood Chain over the last 60,000 blocks, and return up to 50 results.

## When to prefer this

Use this endpoint when you need on-chain token launch data specifically from Robinhood Chain (chain ID 4663) for a known wallet address, want micropayment-gated access with no API key or signup, and need to scan a configurable block window. Prefer this over general blockchain explorers when you want a structured, agent-friendly JSON response with deployment metadata in a single call.

## Known failure modes

- Missing or invalid wallet address returns a 400-level error
- Block window exceeds maximum of 400,000 blocks
- Limit parameter out of range (must be 1–100)
- Payment not settled via x402/USDC results in HTTP 402 and no data returned
- Address has no launches in the requested block window — returns empty launches array with count 0
- Invalid Ethereum address format may produce no results or an error

## How this service works

Pay-per-call on-chain data for agents. USDC on Base over x402 (HTTP 402). Free catalogue, sample and MCP tool; no signup, no API key.

## Output

A JSON object containing: a success flag, the chain identifier ('robinhood-chain-4663'), the deployer address, a count of launches found, the number of blocks scanned, and an array of launch objects each with token name, symbol, contract address, total supply, and the block number at which it was deployed.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "limit": {
       "type": "integer",
       "maximum": 100,
       "minimum": 1,
       "description": "Maximum launches to return."
      },
      "blocks": {
       "type": "integer",
       "maximum": 400000,
       "minimum": 1,
       "description": "Scan window in blocks (~8 blocks/second)."
      },
      "address": {
       "type": "string",
       "description": "Wallet address on Robinhood Chain."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "chain": "robinhood-chain-4663",
  "count": 1,
  "deployer": "0xffc2…",
  "launches": [
   {
    "name": "Clanker Bot",
    "block": 71991234,
    "token": "0xf4057cfb…",
    "supply": "1,000,000,000",
    "symbol": "Bot"
   }
  ],
  "scannedBlocks": 60000
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hermes-agent-data-services-robinhood-chain-token-launch-scanner-a1267d3b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent.majighufron.workers.dev](https://www.zero.xyz/host/x402-agent.majighufron.workers.dev/llms.txt)