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MCPFax On-Chain Toolkit

com.mcpscores/onchain-toolkit · v1.0.2

Measured by MCP Station

Description written by the publisher, not verified

The on-chain facts you need in the seconds before you transact.

Connect

claude mcp add --transport http onchain-toolkit https://onchain-toolkit.bowling-anthony.workers.dev/mcp

{
  "mcpServers": {
    "onchain-toolkit": {
      "url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
    }
  }
}

Tools as reported by the server

• request_data
  FREE, no payment. Describe in your own words the data you are trying to buy — anything, not just on-chain data — and get back whether we operate a service that supplies it, with the MCP endpoint if so. Every request is catalogued so repeatedly-requested data gets built. Nothing identifying is stored
• demand_report
  FREE, no payment. The aggregate of what agents have told us they are looking for, most-requested first, with the categories nothing available yet serves.
• gas_now
  Live gas price on Ethereum, Base, Arbitrum, Optimism or Polygon — in wei and gwei, plus what a plain 21,000-gas transfer would cost in the native token, which is the number you actually budget with. Pass several chains comma-separated to compare where to execute. Call this immediately before sending
• token_info
  Read an ERC-20's name, symbol, decimals and total supply straight from the contract on the chain you name, and confirm the address actually has code there. Use before quoting an amount or building a transfer: getting decimals wrong is the classic way to send 1,000,000x the intended value. An address
• tx_status
  Status of a transaction by hash: success, failed or still pending, with the block it landed in, sender and recipient, value moved, gas used, the fee actually paid, and how many logs it emitted. Use to confirm an action you took really settled rather than assuming it did. An unknown hash is reported
• address_info
  Native balance, the next nonce to use, and whether the address holds contract code — the three things needed before sending from or to an address. Pass 'token' as well to read an ERC-20 balance for the same address in the same call. Values are read at the latest block, so a reorg can change them. Co

Website · JSON · Text for agents · Registry updated 2026-08-31