@outblock/flow-mcp

Name: @outblock/flow-mcp
Author: Outblock

@Outblock

Repository

About @outblock/flow-mcp

Flow blockchain tools for Model Context Protocol (MCP)

#flow #mcp #cadence #flow-blockchain #mcp-server

Basic information

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "flow-mcp": {
      "command": "bun",
      "args": [
        "run",
        "format"
      ]
    }
  }
}

Tools

No tools detected

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

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.