Self-hosted apps that integrate with Gemini API

4 open-source, self-hostable projects list Gemini API as an integration.

• heliconeHelicone is a self-hosted, open-source LLM observability platform and AI gateway for 100+ models with cost tracking, agent tracing, prompt management, and a playground.
• SubTrackerSubTracker is an open-source, self-hosted subscription manager to track renewals, budgets, and spending across currencies with AI capture and Wallos migration.
• RetainRetain is a native macOS app that unifies AI conversations from multiple tools into a searchable local knowledge base with learning extraction.
• phenixcodePhenixCode lets developers query codebases with semantic search and AI chat, running on local models or cloud APIs, with no subscription fees.