Hackle MCP Server

A Model Context Protocol server for Hackle API providing tools and resources for querying A/B Test data. It is available as a remote MCP endpoint.

Teams that want a hosted communication endpoint instead of running a local process. The project is written in JavaScript.

VERIFIED ACTIVE

LAST COMMIT 2026-06-15 · ★ 3 · #103 OF 105 MAINTAINED COMMUNICATION · VERIFIED 2026-09-18

MIT · JavaScript servers · how we verify → /methodology

01 · Install Hackle

before you install - you'll need

API_KEY

Environment variables documented in the project's README - it lists which are required and which have defaults.

Claude Code

claude mcp add hackle-io-hackle-mcp --transport http https://mcp.hackle.io/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "hackle-io-hackle-mcp": {
      "url": "https://mcp.hackle.io/mcp"
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

https://mcp.hackle.io/mcp

transport: streamable-http

endpoint alive - authentication required · probed 2026-09-17

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as remote - your agent's requests go to mcp.hackle.io

endpoint auth requires authentication - rejected our unauthenticated MCP initialize

license MIT - declared in the repository

registry namespace io.github.hackle-io is GitHub-verified and matches the repo owner

03 · Who maintains Hackle

Hackle is maintained by hackle-io. It's the only MCP server we track from this author; the repo dates to Apr 2025.

04 · Facts

repository: github.com/hackle-io/hackle-mcp
category: communication - ranked #103 of 105 actively-maintained communication servers as of 2026-09-18.
registry: io.github.hackle-io/hackle-mcp (active, first published 2026-06-15)

05 · Hackle FAQ

What is Hackle?

A Model Context Protocol server for Hackle API providing tools and resources for querying A/B Test data. It is available as a remote MCP endpoint.

Is Hackle still maintained?

Yes - as of 2026-09-18, its last commit was 2026-06-15. We re-verify nightly.

How do I install Hackle?

Run `claude mcp add hackle-io-hackle-mcp --transport http https://mcp.hackle.io/mcp`. The README documents one environment variable (API_KEY) to set first. You can also paste the ready-made client config above.

Does Hackle require authentication?

Yes - when we probed the endpoint on 2026-09-17, it rejected an unauthenticated MCP initialize; you'll need credentials to connect.

06 · Alternatives to Hackle

Alternatives to Hackle

Maintained communication servers if Hackle isn't the fit.

Pairs well with

Servers that cover what Hackle doesn't - only shown when the pairing reason fits the companion.

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