Machine Learning¶
36 free Machine Learning APIs β auth type, HTTPS and CORS support for each, so you can pick the right one without opening every docs page.
| API | Description | Auth | HTTPS | CORS |
|---|---|---|---|---|
| AI Economics Tools | Token cost, LLM energy, agent-hour and Proof-Adjusted Autonomy calculators by MichaΕ Piszczek | No | Yes | Yes |
| AI For Thai | Free Various Thai AI API | apiKey |
Yes | Yes |
| BRAINIALL | PT-BR and Spanish audio transcription with diarization and SRT/VTT | apiKey |
Yes | Yes |
| Clarifai | Computer Vision | OAuth |
Yes | Unknown |
| Cloudmersive | Image captioning, face recognition, NSFW classification | apiKey |
Yes | Yes |
| DeepAI | Provides AI-powered APIs for text generation, image processing, and more | apiKey |
Yes | Yes |
| Deepcode | AI for code review | No | Yes | Unknown |
| Dialogflow | Natural Language Processing | apiKey |
Yes | Unknown |
| DreamThreads | Parse dreams into structured entities, emotions, agency, threat, and outcomes | No | Yes | Yes |
| EXUDE-API | Used for the primary ways for filtering the stopping, stemming words from the text data | No | Yes | Yes |
| GoldBean | OCR, Translation, NLP & ERNIE LLM via Baidu AI (free tier available) | apiKey |
Yes | Unknown |
| Google Gemini | Multimodal generative AI for text, vision, and code generation | apiKey |
Yes | Unknown |
| Groq | Fast AI inference API with free tier, supports Llama, Mixtral, Gemma models | apiKey |
Yes | Yes |
| Hirak FaceAPI | Face detection, face recognition with age estimation/gender estimation, accurate, no quota limits | apiKey |
Yes | Unknown |
| Hugging Face | AI model hub with inference API for NLP, computer vision, and audio | apiKey |
Yes | Yes |
| Imagga | Image Recognition Solutions like Tagging, Visual Search, NSFW moderation | apiKey |
Yes | Unknown |
| Inferdo | Computer Vision services like Facial detection, Image labeling, NSFW classification | apiKey |
Yes | Unknown |
| IPS Online | Face and License Plate Anonymization | apiKey |
Yes | Unknown |
| Irisnet | Realtime content moderation API that blocks or blurs unwanted images in real-time | apiKey |
Yes | Yes |
| Jina AI | Free AI API for embeddings, reranking, and text processing | apiKey |
Yes | Yes |
| Keen IO | Data Analytics | apiKey |
Yes | Unknown |
| Machinetutors | AI Solutions: Video/Image Classification & Tagging, NSFW, Icon/Image/Audio Search, NLP | apiKey |
Yes | Yes |
| MediaCraft AI | Chinese content compliance review (17 platforms), ENβCN translation, and SEO optimization. Pay-per-call via x402 (Solana USDC). | apiKey |
Yes | Yes |
| MessengerX.io | A FREE API for developers to build and monetize personalized ML based chat apps | apiKey |
Yes | Yes |
| Modelfax | LLM pricing, context windows and deprecation dates, schema-validated and updated daily | No | Yes | Yes |
| NLP Cloud | NLP API using spaCy and transformers for NER, sentiments, classification, summarization, and more | apiKey |
Yes | Unknown |
| Not Human Search | AI tool discovery with agentic scoring for 8,600+ tools and MCP servers | No | Yes | Yes |
| OpenVisionAPI | Open source computer vision API based on open source models | No | Yes | Yes |
| Perspective | NLP API to return probability that if text is toxic, obscene, insulting or threatening | apiKey |
Yes | Unknown |
| Roboflow Universe | Pre-trained computer vision models | apiKey |
Yes | Yes |
| SkyBiometry | Face Detection, Face Recognition and Face Grouping | apiKey |
Yes | Unknown |
| Statlyte | Live pricing, context windows and model ids for major LLM APIs | No | Yes | Yes |
| TensorFeed | Real-time AI news, model pricing, service status, and agent activity feeds | No | Yes | Yes |
| Time Door | A time series analysis API | apiKey |
Yes | Yes |
| Unplugg | Forecasting API for timeseries data | apiKey |
Yes | Unknown |
| WolframAlpha | Provides specific answers to questions using data and algorithms | apiKey |
Yes | Unknown |
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