@outblock/flow-mcp

What is @outblock/flow-mcp?

@outblock/flow-mcp is a Model Context Protocol server that provides tools for interacting with the Flow blockchain. It enables users to query balances, account details, contract source code, and COA information on both mainnet and testnet.

How to use @outblock/flow-mcp?

Install the package via npm (npm install @outblock/flow-mcp) or bun (bun add @outblock/flow-mcp). Then add the server to your MCP configuration (e.g., for Claude) using npx -y @outblock/flow-mcp as the command. Configuration files are located at ~/Library/Application Support/Claude/mcp.json (macOS), %APPDATA%/Claude/mcp.json (Windows), or ~/.config/Claude/mcp.json (Linux). Restart Claude to load the server.

Key features of @outblock/flow-mcp

• Retrieve FLOW balance for any address
• Get token balance for any Flow token
• Obtain COA account information
• Fetch source code of deployed contracts
• View detailed account info including storage stats

Use cases of @outblock/flow-mcp

• Checking FLOW or token balances for wallets or dApps
• Inspecting account storage and metadata
• Retrieving contract source code for auditing or analysis
• Querying COA (Coinbase Onchain Account) details on Flow
• Integrating Flow blockchain data into AI-assisted workflows

FAQ from @outblock/flow-mcp

What dependencies does @outblock/flow-mcp require?

Node.js and npm or bun are needed for installation. The server is run via npx (which comes with Node.js) or directly with bun.

Which networks are supported?

The tools accept an optional network parameter that can be set to 'mainnet' or 'testnet'. Default behavior is not specified.

How do I configure @outblock/flow-mcp in Claude?

Add a JSON entry to your MCP configuration file under mcpServers with the command npx, arguments ["-y", "@outblock/flow-mcp"], and a label such as "flow".

Does the project provide development tools?

Yes. It includes a script to scaffold new MCP tools (bun run scripts/create-tool.ts <tool-name>) and commands for formatting, testing, and building.

What license is @outblock/flow-mcp released under?

The project is licensed under the MIT License.