Featured
Hugging Face
The GitHub of AI models and datasets.
Hugging Face hosts 500,000+ open-source AI models, datasets, and Spaces. Deploy models via free Inference API with 30,000 requests/month.
modelsapiopen-source
0Best Free Developer & API Tools Tools
AI APIs, SDKs, developer tools, and AI infrastructure platforms.
5 Free Tools
Verified Free
5 Free Developer & API Tools Tools
OpenAI API
GPT-4o and DALL-E via API.
OpenAI's API gives developers access to GPT-4o, DALL-E, Whisper, and embeddings. New accounts get $5 free credit to start building AI-powered apps immediately.
gptapillm
0Replicate
Run AI models via a simple API.
Replicate lets you run thousands of open-source AI models via a simple API call — image generation, LLMs, video, audio. Free tier: $0.01 credit on sign-up.
apimodelsdeployment
0Groq
Fastest LLM inference API — free tier.
Groq delivers ultra-fast LLM inference for Llama 3, Mixtral, and Gemma models. Free tier: 14,400 requests/day with the fastest response times available anywhere.
llmfastinference
0Anthropic API
Claude AI for developers.
Anthropic's API provides access to Claude 3 Haiku, Sonnet, and Opus. New accounts receive $5 free credit. Ideal for building safe, reliable AI applications.
claudeapillm
0About Free Developer & API Tools Tools
Developer & API Tools tools powered by artificial intelligence are transforming the way individuals and teams work. Our directory lists only tools that offer a genuine free tier, free trial, or open-source licence — so you can start immediately with no credit card.
Every tool in this list has been manually reviewed to confirm the free tier is real and accessible. We update this list monthly to reflect pricing changes, new launches, and tool shutdowns.
How We Rank Developer & API Tools Tools
- Generosity of free tier — unlimited usage scores higher than heavily limited trials
- User ratings — community ratings from verified users
- Popularity — click-through rate and user saves
- Feature set — breadth of what you can do on the free plan