Unleash Mcp
Manage Unleash feature flags and projects from your agent instead of clicking through the Unleash UI during releases.
Overview
io.getunleash/unleash-mcp is an MCP server for the Operate phase that lets agents manage Unleash feature flags via PAT-authenticated API access.
What is this MCP server?
- Official @unleash/mcp npm package (v0.4.0) with stdio transport
- Authenticates with UNLEASH_BASE_URL and UNLEASH_PAT against self-hosted or cloud Unleash
- Optional UNLEASH_DEFAULT_PROJECT scopes default project context for tool calls
- Purpose-built for feature-flag lifecycle from MCP-capable coding agents
- Server version 0.4.0; package @unleash/mcp
- 2 required env vars (BASE_URL, PAT); 1 optional default project
- Stdio transport per MCP server schema 2025-12-11
Community signal: 18 GitHub stars.
What problem does it solve?
Toggling and auditing feature flags in a separate UI while debugging or shipping patches slows solo builders who live in the terminal and IDE.
Who is it for?
SaaS builders running Unleash (hosted or self-hosted) who want agent-driven flag ops during iteration and release tuning.
Skip if: Products without Unleash or teams that only need in-app flag evaluation with no admin automation.
What do I get? / Deliverables
Your agent can manage Unleash projects and flags through MCP tools once BASE_URL, PAT, and optional default project are configured.
- Agent-accessible Unleash management tools over MCP
- Project-scoped sessions when UNLEASH_DEFAULT_PROJECT is set
- Repeatable flag changes without leaving the IDE
Recommended MCP Servers
Journey fit
How it compares
Unleash admin MCP bridge, not an application SDK or LaunchDarkly-compatible skill.
Common Questions / FAQ
Who is io.getunleash/unleash-mcp for?
Developers using Unleash who want Claude Code, Cursor, or similar agents to manage flags and projects over MCP.
When should I use io.getunleash/unleash-mcp?
Use it during operate/iterate when you are rolling out, rolling back, or auditing feature flags on a live Unleash instance.
How do I add io.getunleash/unleash-mcp to my agent?
Install @unleash/mcp, set UNLEASH_BASE_URL and UNLEASH_PAT, optionally UNLEASH_DEFAULT_PROJECT, and add the stdio server to MCP settings.