Agify.io
AI
Estimate age from names. Integrate age inference directly into workflows and perform efficient inference on big datasets with simple APIs. Enrich data with demographic insights.
No keyCORSHTTPS
Free AI APIs
Hosted models for language, vision, speech and inference, plus the metadata APIs that track model pricing and deprecation.
107 listed · 15 need no key · 44 work in the browser
AI Economics Tools
AI
Token cost, LLM energy, agent-hour and Proof-Adjusted Autonomy calculators by Michał Piszczek
No keyCORSHTTPS
AI Model Watch
AI
Daily-updated prices, context windows & deprecation/EOL dates for 190+ AI/LLM models, sourced from official provider docs
No keyCORSHTTPS
DocStruct
AI
AI extraction of invoices, receipts, bank statements & contracts into structured JSON/CSV
No keyCORSHTTPS
DreamThreads
AI
Parse dreams into structured entities, emotions, agency, threat, and outcomes
No keyCORSHTTPS
EXUDE-API
AI
Used for the primary ways for filtering the stopping, stemming words from the text data
No keyCORSHTTPS
Kavel
AI
Generate and edit images with AI, no key or account required
No keyCORSHTTPS
Modelfax
AI
LLM pricing, context windows and deprecation dates, schema-validated and updated daily
No keyCORSHTTPS
Not Human Search
AI
AI tool discovery with agentic scoring for 8,600+ tools and MCP servers
No keyCORSHTTPS
OpenVisionAPI
AI
Open source computer vision API based on open source models
No keyCORSHTTPS
TensorFeed
AI
Real-time AI news, model pricing, service status, and agent activity feeds
No keyCORSHTTPS
Deepcode
AI
AI for code review
No keyHTTPS
Nonobench
AI
Open-source benchmark of how well LLMs solve nonogram puzzles
No keyCORSHTTPS
Statlyte
AI
Live pricing, context windows and model ids for major LLM APIs
No keyHTTPS
Agent Gateway API
AI
Agent Gateway API provides a unified interface to over 39 production-ready services designed for AI agents. These services include crypto wallets, DeFi trading, file storage, code execution, and more, making it easy for developers to integrate diverse functionalities into their applications. The API also features a free tier with 200 credits and allows payments through USDC on the Base network.
AuthCORSHTTPS
Agent Nexus API
AI
The Agent Nexus API provides a continuously verified registry of APIs, MCP servers, and CLIs that AI agents can call. Users can discover capabilities, search the registry, and retrieve detailed information about specific interfaces without needing an account or an API key.
AuthCORSHTTPS
AI Background Remover
AI
This API allows users to instantly remove backgrounds from images using advanced AI technology. The tool is designed to be secure, fast, and user-friendly, providing high-quality results without the need for user sign-up. Users can upload their images and get transparent background outputs quickly.
AuthCORSHTTPS
Audexum
AI
Speech-to-text in 25 languages and text-to-speech with 43 voices in 32 languages
API keyCORSHTTPS
BrewPage Hosting API
AI
BrewPage is a hosting platform that allows users to publish HTML pages, key-value data, JSON documents, and files without the need for signup. Users can publish content instantly through various methods, including a web interface, API calls, and integration with AI agents.
AuthCORSHTTPS
Cork & Curve API
AI
This API provides wine travel data for AI agents, including verified places, festivals with dates, and bookable experiences such as stays and car hire. Publicly accessible without a key, it offers an optional attribution feature for users who provide their X-API-Key.
AuthCORSHTTPS
DeepAI
AI
Provides AI-powered APIs for text generation, image processing, and more
API keyCORSHTTPS
Email Verification API
AI
This API validates email addresses through format checks, MX record lookup, SMTP probing, and catch-all detection. It is designed for AI agents to efficiently assess and filter out invalid email addresses before further processing, without the need for a user dashboard. The service is accessible via a straightforward JSON response, suitable for automated workflows.
AuthCORSHTTPS
HOL Registry Broker
AI
Search and verify AI agents & MCP servers
API keyCORSHTTPS
Jina AI
AI
Free AI API for embeddings, reranking, and text processing
API keyCORSHTTPS
All 107 AI APIs
- Agify.io
- AI Economics Tools
- AI Model Watch
- DocStruct
- DreamThreads
- EXUDE-API
- Kavel
- Modelfax
- Not Human Search
- OpenVisionAPI
- TensorFeed
- Deepcode
- Nonobench
- Statlyte
- Agent Gateway API
- Agent Nexus API
- AI Background Remover
- Audexum
- BrewPage Hosting API
- Cork & Curve API
- DeepAI
- Email Verification API
- HOL Registry Broker
- Jina AI
- Keyless GET Tools
- Lacuna
- launch.pics
- MediaCraft AI
- MessengerX.io
- OCR.Space
- Pricing API
- ScriptMasterLabs MCP
- Sodeom AI Proxy
- svg.new
- TableJourney Agent API
- Text-till-Kladdesign
- Trimwise Prompt Compression
- Unplugg
- UpRes
- Agent Access Index
- AI Crawler Checker
- AI Engine
- AI For Thai
- AI Presentation Generator
- AI Visibility Checker
- ai-cats API
- AITraining Jobs API
- BRAINIALL
- Brainshop.ai
- Checktica API
- Clarifai
- Claude API
- Cloudmersive
- Cohere
- Company Signals API
- CrowdSorcerer
- Crun API Overview
- Descent Claim Data
- Dialogflow
- Dymo API Introduction
- Gemini API
- GEN
- GoldBean
- Google Gemini
- Groq
- Hirak FaceAPI
- Hirak OCR
- Hugging Face
- Imagga
- Inferdo
- Inkspan Document API
- Irisnet
- Kavel API
- Keen IO
- Kiprio AI Content Detector
- Laya Decision Gateway
- Machinetutors
- Marine Survey Fee Index
- Micro-SaaS AI Suite
- Mistral AI
- MLB GUMBO API
- NLP Cloud
- onomeo
- OpenRouter
- Perspective
- Pollinations AI
- Remote Jobs API
- Replicate
- Requesty
- Roboflow Universe
- RuntimeBuzz Article API
- SafeReel
- SeqBench MCP API
- Skim Markdown Reader
- SkyBiometry
- Stitch AI Design
- Sunor
- Time Door
- Together AI
- ToHuman
- TokenRoute
- UK Commercial Mortgage Rate Index
- VibeKing API
- Wit.ai
- WolframAlpha
- Speak AI
- Voxell Forge
Free AI APIs — common questions
Counts and timings below come from our own scheduled checks of this category.
How many free ai APIs are there?
We track 107 in this category, of which 86 responded at our last check. 15 of them need no API key.
Which ai APIs work without an API key?
15 of the 107 entries here need no credential. Filter this page by "no key" to see them, or browse the no-key collection for every keyless API across all categories.
Can I use these ai APIs in a browser app?
12 entries in this category need no key and return CORS headers, which is the combination that lets you call them straight from client-side JavaScript. The rest need a server or a proxy in between.
Which is the fastest free ai API?
Of the keyless options that responded at our last check, TensorFeed was quickest at a median 866 ms. Speed is only one factor — coverage and licensing usually matter more — but it is measured here rather than claimed.
How do you know these APIs still work?
We call every listing on a schedule and record the status code, response time and whether CORS headers came back. Those results drive the badges on this page. Across the whole catalogue, 361 of 3,005 entries were not responding at the last full run, which is the sort of thing an unchecked list never tells you.