OuterSpacee/free-ai-apis

A collective list of free AI APIs for developers. 100+ APIs, 15 categories. No credit card required.

What it solves

Developers often need AI models for their apps but face costly API bills or juggle many different providers. This project compiles a large set of AI services that offer free tiers or free local models, so you can build and prototype AI features without spending money. It solves the discovery problem by organizing these options in one place, with details on exactly what you get for free and how to authenticate.

How it works

The repository is a curated, community-maintained list of APIs and self-hostable tools. It uses tables grouped by category — text generation, image generation, speech-to-text, text-to-speech, embeddings, vision, video, music, translation, summarization, code generation, search/RAG, moderation, model hosting, and multi-modal aggregators. Each row includes the API name, a short description, the free-tier specifics (like monthly credits, request limits, or “unlimited” for local setups), the authentication method (apiKey, OAuth, or none), and a link to official docs. The project also has a legend explaining the table columns, a contributing guide for adding missing APIs, and an issue tracker for submissions.

Who it’s for

It’s aimed at developers, indie hackers, students, and startups who want to build AI-powered applications or test AI features without a budget. It’s also useful for researchers evaluating multiple providers before committing to a paid plan, and anyone curious about what free AI resources exist. Local/self-hosted options are included for users who prefer privacy or unlimited usage.

Highlights

  • 100+ free AI APIs and tools, updated as of October 2026
  • 15+ categories covering everything from LLMs to video generation and moderation
  • Most entries require no credit card, and many include generous free tiers (e.g., 1M tokens/day, free credits, or unlimited local use)
  • Includes both hosted APIs and local/self-hosted solutions (like Ollama, Whisper, Piper)
  • Community-driven: you can submit new APIs and follow the contributing guide
  • Licensed under CC0 (public domain), so the list itself is freely reusable

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