API ATLAS

AI & Machine Learning: 46 free APIs

APIs and MCP servers for inference, embeddings, agents and data science workflows. Every record below links to its own documentation page.

Listed
46
No auth needed
9
Full profiles
4

APIs in this category

46 of 46
ElevenLabs API Documentation This is the documentation for the ElevenLabs API. You can use this API to use our service programmatically, this is done by using your xi-api-key. You can view your xi-api-key using the 'Profile' tab on https://beta.elevenlabs.io. Our API is experimental so all endpoints are subject to change.
api.datumbox.com Datumbox offers a Machine Learning platform composed of 14 classifiers and Natural Language processing functions. Functions include sentiment analysis, topic classification, readability assessment, language detection, and much more.
Pandorabots AIaaS AIaaS provides API access to our bot hosting platform and SDKs, allowing developers to easily integrate conversational interfaces into applications.
MediaCraft AI Chinese content compliance review (17 platforms), ENCN translation, and SEO optimization. Pay-per-call via x402 (Solana USDC).
Hirak FaceAPI Face detection, face recognition with age estimation/gender estimation, accurate, no quota limits
NLP Cloud NLP API using spaCy and transformers for NER, sentiments, classification, summarization, and more
AI Economics Tools Token cost, LLM energy, agent-hour and Proof-Adjusted Autonomy calculators by Michał Piszczek
EXUDE-API Used for the primary ways for filtering the stopping, stemming words from the text data
Machinetutors AI Solutions: Video/Image Classification & Tagging, NSFW, Icon/Image/Audio Search, NLP
Modelfax LLM pricing, context windows and deprecation dates, schema-validated and updated daily
Perspective NLP API to return probability that if text is toxic, obscene, insulting or threatening
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
MessengerX.io A FREE API for developers to build and monetize personalized ML based chat apps
DreamThreads Parse dreams into structured entities, emotions, agency, threat, and outcomes
Groq Fast AI inference API with free tier, supports Llama, Mixtral, Gemma models
TensorFeed Real-time AI news, model pricing, service status, and agent activity feeds
DeepAI Provides AI-powered APIs for text generation, image processing, and more
Imagga Image Recognition Solutions like Tagging, Visual Search, NSFW moderation
Not Human Search AI tool discovery with agentic scoring for 8,600+ tools and MCP servers
GoldBean OCR, Translation, NLP & ERNIE LLM via Baidu AI (free tier available)
Hugging Face AI model hub with inference API for NLP, computer vision, and audio
BRAINIALL PT-BR and Spanish audio transcription with diarization and SRT/VTT
WolframAlpha Provides specific answers to questions using data and algorithms
Statlyte Live pricing, context windows and model ids for major LLM APIs
OpenVisionAPI Open source computer vision API based on open source models
Jina AI Free AI API for embeddings, reranking, and text processing
OpenAI API APIs for sampling from and fine-tuning language models

Rows marked ↗ have no reference page of their own — the source registry did not provide enough to write one — so they link straight to the provider's documentation.

Authentication

How the 46 records in this category authenticate callers. Values come straight from the source registries; records the sources do not describe are counted as unknown rather than guessed.

  • API key 26
  • Unknown 10
  • No authentication 9
  • OAuth 1

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