freeapis

Machine Learning APIs

57 free public APIs in this category

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57 shown
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1ClickImpact (AI Energy)

Track and offset the energy and carbon footprint of your AI/LLM usage via a simple API

API KeyYesUnknown↗
Advanced Multilanguage AI Translator (RapidAPI)

AI-powered translator supporting multiple languages with fast, context-aware responses

API KeyYesUnknown↗
AI Economics Tools

Token cost, LLM energy, agent-hour and Proof-Adjusted Autonomy calculators by Michał Piszczek

No authYesYes↗
AI For Thai

Free Various Thai AI API

API KeyYesYes↗
AI Learning Engine

Create, auto-grade, and analyze learning tasks with AI-based evaluations

API KeyYesUnknown↗
AI/ML

Access 100+ curated AI Models over 1 API

API KeyYesUnknown↗
BRAINIALL

PT-BR and Spanish audio transcription with diarization and SRT/VTT

API KeyYesYes↗
Chatwith

Build custom ChatGPT-style AI chatbots trained on your website and files, integrated with 5000+ apps — no coding, live in minutes.

API KeyYesUnknown↗
Clarifai

Computer Vision

OAuthYesUnknown↗
Cloudmersive

Image captioning, face recognition, NSFW classification

API KeyYesYes↗
cogDepot

Marketplace API for AI agents to post service listings, negotiate terms, and finalize deals, with an A2A Agent Card and JSON-RPC endpoint

API KeyNoUnknown↗
Cohere

Harness the power of language understanding. Join the developers and businesses who are using Cohere to generate, categorize and organize text at a scale that was previously unimaginable.

API KeyYesUnknown↗
CustomGPT.ai

RAG API with RESTful endpoints, comprehensive SDKs, and enterprise-grade reliability.

API KeyYesUnknown↗
DeepAI

Provides AI-powered APIs for text generation, image processing, and more

API KeyYesYes↗
Deepcode

AI for code review

No authYesUnknown↗
Dialogflow

Natural Language Processing

API KeyYesUnknown↗
DreamThreads

Parse dreams into structured entities, emotions, agency, threat, and outcomes

No authYesYes↗
Eden

Get all AI models in one place, e.g. OpenAI, Google and lots more!

API KeyYesUnknown↗
EXUDE-API

Used for the primary ways for filtering the stopping, stemming words from the text data

No authYesYes↗
Face-api.js

JavaScript API for face detection, recognition, and emotion analysis using TensorFlow.js

No authunknownUnknown↗
Gandr

Text to speech API for voice agents. One voice in 23 languages, every render watermarked

API KeyYesUnknown↗
Gladia

Artificial intelligence API's

API KeyNoUnknown↗
GoldBean

OCR, Translation, NLP & ERNIE LLM via Baidu AI (free tier available)

API KeyYesUnknown↗
Google Gemini

Multimodal generative AI for text, vision, and code generation

API KeyYesUnknown↗
Groq

Fast AI inference API with free tier, supports Llama, Mixtral, Gemma models

API KeyYesYes↗
HarnessRouter

Run coding agent harnesses (Codex, Claude Code, Hermes) behind your product through one API

API KeyunknownUnknown↗
HOL Registry Broker

Discovery API for AI agents & MCP servers (search, verify, UAID, chat)

API KeyYesUnknown↗
Hugging Face

AI model hub with inference API for NLP, computer vision, and audio

API KeyYesYes↗
Imagga

Image Recognition Solutions like Tagging, Visual Search, NSFW moderation

API KeyYesUnknown↗
Inferdo

Computer Vision services like Facial detection, Image labeling, NSFW classification

API KeyYesUnknown↗
IPS Online

Face and License Plate Anonymization

API KeyYesUnknown↗
Irisnet

Realtime content moderation API that blocks or blurs unwanted images in real-time

API KeyYesYes↗
Jina AI

Free AI API for embeddings, reranking, and text processing

API KeyYesYes↗
Keen IO

Data Analytics

API KeyYesUnknown↗
Machinetutors

AI Solutions: Video/Image Classification & Tagging, NSFW, Icon/Image/Audio Search, NLP

API KeyYesUnknown↗
Machinetutors

AI Solutions: Video/Image Classification & Tagging, NSFW, Icon/Image/Audio Search, NLP

API KeyYesYes↗
MediaCraft AI

Chinese content compliance review (17 platforms), EN↔CN translation, and SEO optimization. Pay-per-call via x402 (Solana USDC).

API KeyYesYes↗
MessengerX.io

A FREE API for developers to build and monetize personalized ML based chat apps

API KeyYesYes↗
NLP Cloud

NLP API using spaCy and transformers for NER, sentiments, classification, summarization, and more

API KeyYesUnknown↗
Not Human Search

AI tool discovery with agentic scoring for 8,600+ tools and MCP servers

No authYesYes↗
OpenAI

Use AI models such as ChatGPT or DALL-E to experience the capabilities of AI

API KeyYesUnknown↗
OpenVisionAPI

Open source computer vision API based on open source models

No authYesYes↗
Perspective

NLP API to return probability that if text is toxic, obscene, insulting or threatening

API KeyYesUnknown↗
Prismix Status API

Real-time uptime and incident status for 75+ AI services (OpenAI, Anthropic, Cursor, Gemini)

No authYesUnknown↗
Roboflow Universe

Pre-trained computer vision models

API KeyYesYes↗
SkyBiometry

Face Detection, Face Recognition and Face Grouping

API KeyYesUnknown↗
Spam Hunter

Free service to classify text as spam using ML

API KeyYesUnknown↗
Statlyte

Live pricing, context windows and model ids for major LLM APIs

No authYesYes↗
Summarize Text with AI

This API generates customizable summaries of text and web pages using AI

API KeyYesUnknown↗
TensorFeed

Real-time AI news, model pricing, service status, and agent activity feeds

No authYesYes↗
Time Door

A time series analysis API

API KeyYesYes↗
TranscriptFetch

YouTube transcript API for developers. Fetch captions from any video in production—no proxies, no IP blocks. Built for LLM, RAG, and MCP pipelines

API KeyYesUnknown↗
UnoRouter

OpenAI-compatible gateway routing chat/completions across 500+ models with a free tier

API KeyYesUnknown↗
Unplugg

Forecasting API for timeseries data

API KeyYesUnknown↗
WaveSpeedAI

Generate images, video and audio from 900+ open and commercial models (FLUX, Seedream, Kling, Wan) through one async REST API

API KeyYesUnknown↗
WolframAlpha

Provides specific answers to questions using data and algorithms

API KeyYesUnknown↗
XiuRouter

Route requests to leading AI models through one API with native OpenAI, Anthropic, and Gemini protocols

API KeyYesUnknown↗