List of Permanent Free LLM API (API Keys)
This curated list catalogs LLM API providers that offer permanent or long-term free tiers for text inference, organizing them into two sections: provider APIs (run by companies that train or fine-tune their own models) and inference providers (third-party hosting services). Each entry links directly to the provider's API key page and includes a structured table of available models with context window sizes, maximum output tokens, supported modalities, and rate limits. Covered providers include Google Gemini, Mistral AI, Cohere, DeepSeek, AI21 Labs, Alibaba Cloud, and xAI, among others. All listed endpoints are OpenAI SDK-compatible unless noted, making it straightforward to substitute them into existing API client code. Notably, Gemini 2.5 Pro is available on the free tier with a 2M token context window, though access is restricted in the EU, UK, and Switzerland. The list is tagged for use with Anthropic tooling and OpenClaw, suggesting relevance to developers building Claude-adjacent or multi-provider AI agent workflows on a budget.
- ✓Open-source license (CC0-1.0)
- ✓Actively maintained (<30d)
- ✓Healthy fork ratio
- ✓Clear description
- ✓Topics declared
- ✓Documented (README)
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mnfst/awesome-free-llm-apis is awesome lists for the Claude AI ecosystem. List of Permanent Free LLM API (API Keys) It has 5k GitHub stars and was last updated 16d ago.
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mnfst/awesome-free-llm-apis is maintained by mnfst. The last recorded GitHub activity is from 16d ago, with 10 open issues.
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