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Blockchain MCP

Community Finance and payments

Access Tatum's blockchain API across many networks, including an RPC gateway and blockchain data insights.

Source code Documentation

What can you do with Blockchain MCP?

Install

The installation steps are in the documentation below. Documentation

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Blockchain MCP powered by Tatum
  2. Features
  3. Installation
  4. MCP client setup
  5. Available tools (13)
  6. Supported networks
  7. Development
  8. Documentation
  9. License
  10. About Tatum

Blockchain MCP powered by Tatum

A Model Context Protocol (MCP) server that exposes the Tatum Blockchain Data API and RPC Gateway so LLM clients can query blockchain data across 130+ networks. Get an API key on the Tatum MCP page or dashboard.

Features

Requires Node.js 18+ and a TATUM_API_KEY.

Installation

npm install -g @tatumio/blockchain-mcp

Or use without a global install:

npx @tatumio/blockchain-mcp

Published binaries: blockchain-mcp and blockchain-mcp-server (same entrypoint).

MCP client setup

  1. Create a free API key at dashboard.tatum.io.
  2. Add the server to your MCP client (Cursor, Claude Desktop, VS Code, etc.):
{
  "mcpServers": {
    "tatumio": {
      "command": "npx",
      "args": ["@tatumio/blockchain-mcp"],
      "env": {
        "TATUM_API_KEY": "YOUR_API_KEY"
      }
    }
  }
}

Do not commit API keys. Use environment variables in client config only.

Example prompts

Once connected, you can ask your assistant to use MCP tools, for example:

  • “What is the BTC/USD exchange rate?” → get_exchange_rate with symbol: BTC, basePair: USD
  • “Show Vitalik’s native ETH balance history” → get_wallet_portfolio / get_transaction_history on ethereum-mainnet
  • “What is the latest Ethereum block number?” → gateway_execute_rpc with eth_blockNumber

Chain identifiers use Tatum gateway names (e.g. ethereum-mainnet, bitcoin-mainnet). Call gateway_get_supported_chains for the live list.

Available tools (13)

Blockchain Data (10)
ToolDescription
get_metadataNFT/multitoken metadata by contract address and token IDs
get_wallet_balance_by_timeNative wallet balance at a block or timestamp
get_wallet_portfolioWallet portfolio (native, fungible, NFT)
get_ownersOwners of an NFT or token contract
check_ownerWhether an address owns a given token
get_transaction_historyTransaction history for one or more addresses
get_block_by_timeBlock info for a timestamp
get_tokensToken metadata (contract address or native)
check_malicious_addressSecurity check for a wallet/contract address
get_exchange_rateFiat/crypto rate (e.g. BTC / USD)
RPC Gateway (3)
ToolDescription
gateway_get_supported_chainsAll networks available through the gateway
gateway_get_supported_methodsRPC/REST methods supported for a chain
gateway_execute_rpcRun a JSON-RPC method or REST call on a chain

Supported networks

Tatum supports many EVM and non-EVM chains. Examples:

  • EVM: Ethereum (mainnet, Sepolia, Holesky), Polygon, Arbitrum, Optimism, Base, BSC, Avalanche, Fantom, Celo, Gnosis, Ronin, and others.
  • Non-EVM: Bitcoin, Litecoin, Dogecoin, Solana, Cardano, Tezos, Stellar, Ripple, and others.

For authoritative chain IDs and RPC coverage, use gateway_get_supported_chains or see Supported blockchains.

Development

git clone https://github.com/tatumio/blockchain-mcp.git
cd blockchain-mcp
npm install
cp .env.example .env   # add your TATUM_API_KEY
npm run build

Run the MCP server locally:

export TATUM_API_KEY=your-key
npm start
# or via CLI wrapper:
npx blockchain-mcp --api-key your-key

Point a local MCP client at the built CLI:

{
  "mcpServers": {
    "tatumio-local": {
      "command": "node",
      "args": ["/absolute/path/to/blockchain-mcp/dist/cli.js"],
      "env": { "TATUM_API_KEY": "YOUR_API_KEY" }
    }
  }
}

Smoke-test live APIs (requires TATUM_API_KEY):

npm run verify:tools

Documentation

License

MIT — see LICENSE.

About Tatum

Tatum provides blockchain APIs, SDKs, and infrastructure for developers.

Frequently asked questions

What is Blockchain MCP?

Access Tatum's blockchain API across many networks, including an RPC gateway and blockchain data insights.

How do I install Blockchain MCP?

Follow the installation steps in its documentation, shown on this page and in its repository.

Is Blockchain MCP open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Blockchain MCP?

It is published by tatumio. AI.tn lists it but does not maintain or endorse it.

From the community awesome-mcp-servers lists and the project's GitHub repository. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.