Free LLM API for Startups

Keyword: free llm api startups · Updated July 2026

Free LLM APIs for startups to build MVPs and prototype AI features. Scale from free tier to paid without changing code.

Plugsky offers a free AI API with generous rate limits — no credit card required. Full OpenAI compatibility means your existing code works without changes.

Why Plugsky for free AI APIs:

• Free tier with competitive RPM and TPM limits, no credit card needed
• 28 models from micro to frontier — all accessible on the free tier
• Full OpenAI compatibility — same SDK, same endpoints, same tool calling
• Built-in RAG, agents, and model fusion
• Privacy-first — we never train on your API data

Sign up for free at plugsky.com and get your API key in minutes. Upgrade only when you need more capacity.

Get Free API Key →