This repository is the source of truth for Boar blockchain MCP - a free, keyless remote MCP server exposing 50 read-only blockchain tools across Bitcoin, Ethereum, and Mezo. No local installation required.
The server runs on Cloudflare Workers and is available at:
- Basic endpoint (37 tools):
https://mcp.boar.network/basic - Advanced endpoint (13 tools):
https://mcp.boar.network/advanced
All tools are strictly read-only. No transaction signing, no wallet access, no state mutation.
clients/- setup guides for Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Gemini CLI, OpenCodedocs/- tool references, basic vs advanced guide, prompt cookbook.mcp.json- MCP server configuration for Claude Code (project-level auto-detection)opencode.json- MCP server configuration for OpenCode (project-level auto-detection).claude-plugin/- Claude plugin standard files (see below).plugin/- Open Plugin Standard files (see below)
The .claude-plugin/ directory follows the Claude plugin standard for Claude Code and Claude Desktop.
Relevant files:
.claude-plugin/plugin.json- plugin manifest referencing the MCP server config.claude-plugin/mcp.json- MCP server configuration (referenced byplugin.jsonvia"mcpServers": "./mcp.json").claude-plugin/marketplace.json- marketplace manifest enabling installation via/plugin install
To install via Claude Code:
/plugin install boar-blockchain-mcp@boar-network/blockchain-mcp
The opencode.json file in the repo root is auto-detected by OpenCode as a project-level MCP config.
Relevant files:
opencode.json- MCP server configuration using"type": "remote"and top-level"mcp"key (OpenCode's format)clients/opencode.md- setup guide
The .plugin/ directory follows the Open Plugin Standard.
Relevant files:
.plugin/plugin.json- plugin manifest
- Documentation changes go in
clients/ordocs/depending on scope - When bumping the version, update it consistently across
.plugin/plugin.json,.claude-plugin/plugin.json,.claude-plugin/marketplace.json, andCHANGELOG.md - The MCP server itself is not hosted in this repo - this repo is documentation and plugin configuration only