Skip to content
Menu

ExpertVagabond

Utility

Verified Builder

MCP server for Robinhood Chain (Arbitrum Orbit L2, chainId 4663) — 24 tools: JSON-RPC reads, token discovery, EIP-3009/USDG tooling, unsigned tx builders. Never holds keys.

ShippingLast ship 5d ago
GitHubSources

Latest ship

Active development: 8 commits across 2 contributors

Code ActivitySource linked

3 active day(s) in ExpertVagabond/robinhood-chain-mcp.

View evidence ↗

Builder activity

Meaningful, source-backed updates per week. Commits are aggregated, not counted individually.

Build timeline

  1. v0.1.0 — verify-only facilitator

    Github ReleaseSource verified

    Initial release. Verify-only [x402](https://x402.org) facilitator for **Robinhood Chain** (`eip155:4663`), settling in **USDG**. **🟢 Live:** `https://x402-facilitator-evm.purplesquirrelnetworks.workers.dev` The hosted x402.org facilitator serves only Base Sepolia; this one serves Robinhood Chain. USDG (the chain has no canonical USDC) implements EIP-3009, established by probing revert selectors since USDG is an EIP-2535 Diamond. **Scope:** `/verify` only. No `/settle` — that needs a funded hot signer and is deliberately out of scope; the service holds no keys and CI enforces that invariant. V

    View evidence

  2. v0.1.0 — 105 tools

    Github ReleaseSource verified

    Initial release. **105 tools** for Robinhood Chain (Arbitrum Orbit L2, chainId 4663). Read-and-build only — no keys, no signing, no broadcasting. **Highlights** - Robinhood Stock Tokens: impostor detection via `uiMultiplier()`, corporate-action multiplier, transfer blocklist - Uniswap v4: pool state via StateView (verified on-chain, not from tags) - Chainlink oracles: stock prices by ticker, equity-hours staleness handling - EIP-3009/USDG: Diamond-aware capability probing, gasless authorization builders - Arbitrum Orbit precompiles, ERC-20/721/1155, x402 payment helpers, offline utilities Ever

    View evidence

Sources