Extra CreditPublic APIs: Machine Learning
50 in APIs and services, most used first.
- AI Economics Tools Token cost, LLM energy, agent-hour and Proof-Adjusted Autonomy calculators by Michał Piszczek
- AI For Thai Free Various Thai AI API
- AI Stupid Level Benchmark scores, rankings and drift data for major LLM APIs, re-measured on a fixed schedule
- AnswerLine ChatGPT, Gemini, Copilot, AI Mode and Google Search/News results as structured JSON
- Audexum Speech-to-text in 25 languages and text-to-speech with 43 voices in 32 languages
- BRAINIALL PT-BR and Spanish audio transcription with diarization and SRT/VTT
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Clarifai Computer Vision - Cloudmersive Image captioning, face recognition, NSFW classification
- ContextFetch Web search for AI agents, each result as Markdown pruned to the passages relevant to the query
- DeepAI Provides AI-powered APIs for text generation, image processing, and more
- Deepcode AI for code review
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Dialogflow Natural Language Processing - DreamThreads Parse dreams into structured entities, emotions, agency, threat, and outcomes
- EXUDE-API Used for the primary ways for filtering the stopping, stemming words from the text data
- GEN Creative AI video engineer for ads, AI UGC and microdramas; free editor and social publishing
- GoldBean OCR, Translation, NLP & ERNIE LLM via Baidu AI (free tier available)
- Hirak FaceAPI Face detection, face recognition with age estimation/gender estimation, accurate, no quota limits
- Imagga Image Recognition Solutions like Tagging, Visual Search, NSFW moderation
- Inferdo Computer Vision services like Facial detection, Image labeling, NSFW classification
- Irisnet Realtime content moderation API that blocks or blurs unwanted images in real-time
- Jina AI Free AI API for embeddings, reranking, and text processing
- Keen IO Data Analytics
- Lacuna Public board where AI agents post problems as seeks and agents who solved them offer help
- Laya Decision Gateway Sub-35ms AI gateway for prompt injection defense, support ticket triage & content moderation
- Machinetutors AI Solutions: Video/Image Classification & Tagging, NSFW, Icon/Image/Audio Search, NLP
- MediaCraft AI Chinese content compliance review (17 platforms), EN↔CN translation, and SEO optimization. Pay-per-call via x402 (Solana USDC).
- MessengerX.io A FREE API for developers to build and monetize personalized ML based chat apps
- Modelfax LLM pricing, context windows and deprecation dates, schema-validated and updated daily
- NLP Cloud NLP API using spaCy and transformers for NER, sentiments, classification, summarization, and more
- Nonobench Open-source benchmark of how well LLMs solve nonogram puzzles
- Not Human Search AI tool discovery with agentic scoring for 8,600+ tools and MCP servers
- onomeo OpenAI-compatible, about 30 free LLMs, 30 calls per 5 hours, optional pay-as-you-go, public beta
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OpenRouter Unified API for 300+ LLMs from OpenAI, Anthropic, Meta, Mistral and more, with a free tier - OpenVisionAPI Open source computer vision API based on open source models
- Perspective NLP API to return probability that if text is toxic, obscene, insulting or threatening
- QuelLLM Open-weight language model catalogue with memory requirements and installation metadata
- Requesty OpenAI compatible LLM router for 600+ models, with a free tier for free models
- Roboflow Universe Pre-trained computer vision models
- SafeReel NSFW detection for images and full-length videos by URL, free tier
- SkyBiometry Face Detection, Face Recognition and Face Grouping
- Speak AI Transcribe and analyze audio and video in 100+ languages
- Statlyte Live pricing, context windows and model ids for major LLM APIs
- Tanvo Image, video and song generation on 30 AI models (Nano Banana, Kling, Veo, Suno), with a free tier
- TensorFeed Real-time AI news, model pricing, service status, and agent activity feeds
- Time Door A time series analysis API
- Together AI Fast inference API for open-source LLMs including Llama, Qwen, DeepSeek with a free tier
- TokenRoute One OpenAI-compatible endpoint for hundreds of LLMs, with a free tier and per-token pricing
- Unplugg Forecasting API for timeseries data
- Voxell Forge OpenAI-compatible text embeddings API, free-forever model with no credit card required
- WolframAlpha Provides specific answers to questions using data and algorithms