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mcp-go

by mark3labs (community)

Go implementation of the Model Context Protocol. Enables seamless integration between LLMs and external data and tools. 8,690 GitHub stars and 58 commits on main in the last 30 days.

8,690·5 tools·Released DEC 2024·MIT
go get github.com/mark3labs/mcp-go
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Go implementation of the Model Context Protocol. Enables seamless integration between LLMs and external data and tools. 8,690 stars and 58 commits on main in the last 30 days.

Reviewed by M. Nouriel · MAY 2026

INSTALL THIS SERVER

{ "mcpServers": { "my-go-mcp-server": { "command": "/path/to/my-go-mcp-server", "args": [ "serve", "--stdio" ] } } }
PrereqGo module: `github.com/mark3labs/mcp-go`. Framework for building MCP servers in Go; example config is for a server compiled from your project. Path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS).
{ "mcpServers": { "my-go-mcp-server": { "command": "/path/to/my-go-mcp-server", "args": [ "serve", "--stdio" ] } } }
{ "mcpServers": { "my-go-mcp-server": { "command": "/path/to/my-go-mcp-server", "args": [ "serve", "--stdio" ] } } }
{ "mcpServers": { "my-go-mcp-server": { "command": "/path/to/my-go-mcp-server", "args": [ "serve", "--stdio" ] } } }
{ "mcpServers": { "my-go-mcp-server": { "command": "/path/to/my-go-mcp-server", "args": [ "serve", "--stdio" ] } } }

5 TOOLS AVAILABLE

new_server
Construct a new MCP server in Go
Admin
register_tool
Register a Go function as an MCP tool
Admin
register_resource
Expose data as an MCP resource
Admin

OUR ASSESSMENT

Strengths
  • 8,690 GitHub stars. Top Go MCP framework.
  • 58 commits on main in the last 30 days.
  • MIT license.
  • Single-binary deployment.
  • Supports all three MCP transports.
Weaknesses
  • Predates the official Go SDK; some interfaces may converge or diverge.
  • Smaller community than Python or TypeScript ecosystems.
  • Community-maintained; no commercial vendor backing.
Security Notes

No authentication at the framework level. Servers built with mcp-go must add authentication for production deployments; Go middleware patterns work well for this.

Best For

Go developers building MCP servers; cloud-native teams that prefer single-binary deployments; Kubernetes operators wrapping internal APIs as MCPs without a Python runtime.

TECHNICAL DETAILS

Language
go
Transport
stdiostreamable-httpsse
Clients
Claude DesktopClaude CodeCursorVS CodeWindsurf
License
MIT
GitHub
mark3labs/mcp-go · ★ 8,690
npm
github.com/mark3labs/mcp-go
Last Release
mcp-go (Go module latest)MAY 12, 2026
First Released
DEC 1, 2024

ADOPTION METRICS

// GitHub Stars
8,690

// Reading this8,690 stars on mark3labs/mcp-go. 58 commits on main in the last 30 days.

// Popularity Rank
#5
Globally · #5 in Dev Tools

// Reading thisPairs with FastMCP (Python), the MCP Spec, MCP Inspector, MCP Registry as the language-and-tooling layer.

SOURCES & VERIFICATION

We don't take any single directory's word for it. Before scoring, we cross-reference 4 public MCP sources, install the server ourselves against the clients we cover, and record when we last re-verified.

01
Discovered
Manual submission
First indexed MAY 12, 2026
02
Cross-referenced
4 directories
PulseMCP, MCP.so, Glama, Smithery
03
Verified against
Claude Desktop, Cursor, Claude Code
Installed and tested across clients
04
Last re-checked
MAY 12, 2026
Weekly re-verification
// How other directories see it

The same server, 4 different lenses. We reconcile these signals into our editorial score, which is why our number sometimes diverges from a directory-aggregate star count.

SourceTheir ratingTheir star countTheir downloadsLast synced
AutomationSwitch This page4.6editorial8,690MAY 12, 2026
PulseMCP— unratedunavailableunavailableMAY 12, 2026
MCP.so— unratedunavailableunavailableMAY 12, 2026
Glama— unratedunavailableunavailableMAY 12, 2026
Smithery— unratedunavailableunavailableMAY 12, 2026

// Counts are directory-reported; we don't adjust them. Discrepancies usually come from different snapshot times or star-caching.

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Pack the entire repository into a single AI-friendly file. Optimised context for feeding codebases to Claude, ChatGPT, Gemini, and others. 24,515 GitHub stars and 100 commits on main in the last 30 days.

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Model Context Protocol Specification

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// Get in touch

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