Feature Flags & Experimentation MCP Servers — LaunchDarkly, GrowthBook, Unleash, Flagsmith, and More

At a glance: 15+ feature flag and experimentation MCP servers. Nearly every major vendor has an official server. Rating: 4.0/5. Official Platform Servers LaunchDarkly MCP Server Server Stars Language Tools launchdarkly/mcp-server 3 TypeScript 5+ Three hosted MCP servers covering feature management, AI Configs, and observability. Zero local installation — just point your MCP client and authenticate. The separation into product-specific servers is thoughtful design. GrowthBook MCP Server Server Stars Language Tools growthbook/growthbook-mcp 15 TypeScript 14 Leading open-source experimentation platform (7K+ stars). Positioned as "the first MCP server for experimentation." 14 tools covering the full lifecycle: create flags, set up rollouts, configure A/B tests, manage environments, search documentation. Unleash MCP Server Server Stars Language Tools Unleash/unleash-mcp — TypeScript 4+ Purpose-driven server — implements an opinionated workflow: detect existing flags → evaluate need → create