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OpenGem
Free, Open-Source AI API Gateway in 1 file
OpenGem turns one or more Google accounts into a local, load-balanced Gemini gateway. It exposes the native Gemini API shape and also accepts OpenAI Chat Completions and Anthropic Messages requests, so most SDKs can point at your OpenGem server with only a base URL change. It is designed for personal, educational and research usage. You run the gateway, connect your own Google accounts, create your own API keys, and monitor usage from the admin console.
Highlights:
• Next.js admin console with a rebuilt setup wizard, dashboard, logs, API keys, docs, settings and chat playground.
• Native Gemini endpoint: POST /v1beta/models/{model}:generateContent.
• OpenAI-compatible endpoint: POST /v1/chat/completions and GET /v1/models.
• Anthropic-compatible endpoint: POST /v1/messages.
• Multi-account rotation with cooldowns, retries, quota handling and automatic account reactivation.
• Local SQLite backend using Node.js node:sqlite, plus optional Firebase Firestore.
• Secure API key store with hashed keys, JWT admin sessions, rate limiting and Helmet headers.
• Streaming support across Gemini, OpenAI-compatible and Anthropic-compatible surfaces.
• Function calling, system prompts, tool payloads, image payloads and request logging.
About OpenGem on Product Hunt
“ Free, Open-Source AI API Gateway in 1 file”
OpenGem was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #54 on the daily leaderboard. OpenGem turns one or more Google accounts into a local, load-balanced Gemini gateway. It exposes the native Gemini API shape and also accepts OpenAI Chat Completions and Anthropic Messages requests, so most SDKs can point at your OpenGem server with only a base URL change. It is designed for personal, educational and research usage. You run the gateway, connect your own Google accounts, create your own API keys, and monitor usage from the admin console.
On the analytics side, OpenGem competes within Productivity, API, Artificial Intelligence and GitHub — topics that collectively have 1.3M followers on Product Hunt. The dashboard above tracks how OpenGem performed against the three products that launched closest to it on the same day.
Who hunted OpenGem?
OpenGem was hunted by Arif Ozgun. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of OpenGem including community comment highlights and product details, visit the product overview.
Arif Ozgun