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Free ai apis & models AI tools

AI APIs & Models tools you can use without paying: a free plan, a free product or an open-source license. Limits of free plans are in each pricing table.

All AI APIs & Models tools →

Arize AI
AI APIs & Models
FreemiumVerified
Observability, evaluation and experiments for teams building AI agents
$50/moFree plan
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Braintrust
AI APIs & Models
FreemiumVerified
Tracing, evals and monitoring for teams running AI agents in production
$249/moFree plan
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Bruno
AI APIs & Models
FreemiumVerified
Git-native, local API client for REST, GraphQL, gRPC and Websocket
Custom (contact sales)Free plan
Visit site of Bruno (partner link, opens in a new tab)
Checkly
AI APIs & Models
FreemiumVerified
Monitoring as code for APIs, sites and user flows, built for developers and AI agents
Custom (contact sales)Free plan
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Chroma
AI APIs & Models
FreemiumVerified
Open-source search database for AI apps, with a usage-based cloud plan
$250/moFree plan
Visit site of Chroma (partner link, opens in a new tab)
Hoppscotch
AI APIs & Models
Open sourceVerified
Open source API development tool for building, testing and debugging requests
Not publishedNo free trial
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Hugging Face
AI APIs & Models
FreemiumVerified
Hub for sharing ML models, datasets and apps, with paid compute and team plans
$9/moFree plan
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Instatus
AI APIs & Models
FreemiumVerified
Status pages and uptime monitoring with incident tools for teams
$20/moFree plan
Visit site of Instatus (partner link, opens in a new tab)
LangChain
AI APIs & Models
FreemiumVerified
Open source agent frameworks plus LangSmith for tracing, evals and deployment
$39/moFree plan
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Langfuse
AI APIs & Models
FreemiumVerified
Open-source tracing, evals and prompt management for LLM apps and AI agents
$29/moFree plan
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Meshy AI
AI APIs & Models
FreemiumVerified
AI 3D model generator that turns text or images into printable and game-ready models
Custom (contact sales)Free plan
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Paperspace
AI APIs & Models
FreemiumVerified
Cloud GPU notebooks, machines and model deployment for ML work, now part of DigitalOcean
$12/moFree plan
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Portkey
AI APIs & Models
FreemiumVerified
AI gateway, observability and guardrails for teams running LLM apps
$49/moFree plan
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Postman
AI APIs & Models
FreemiumVerified
API platform for building, testing, mocking and monitoring APIs, with agent tooling
Custom (contact sales)Free plan
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PromptLayer
AI APIs & Models
FreemiumVerified
Prompt versioning, evals and tracing for AI teams, with a free plan
$49/moFree plan
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Qdrant
AI APIs & Models
FreemiumVerified
Open-source vector search engine with a free managed cloud tier
Custom (contact sales)Free plan
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Replicate
AI APIs & Models
FreemiumVerified
Pay-per-use cloud API for running, fine-tuning and deploying ML models
$0.03Free plan
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Supermemory
AI APIs & Models
FreemiumVerified
Memory layer for AI agents: profiles, graph and search via API, plugins, MCP
$19/moFree plan
Visit site of Supermemory (partner link, opens in a new tab)
Tyk
AI APIs & Models
FreemiumVerified
API and AI gateway with management, portal and governance, self-hosted or cloud
Custom (contact sales)Free plan
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Typesense
AI APIs & Models
Open sourceVerified
Open-source search engine with typo tolerance, vector search and a hosted cloud
Custom (contact sales)Free plan
Visit site of Typesense (partner link, opens in a new tab)
UptimeRobot
AI APIs & Models
FreemiumVerified
Uptime monitoring for websites, APIs, ports and cron jobs, with public status pages
€10/moFree plan
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Weaviate
AI APIs & Models
FreemiumVerified
Open-source vector database with hybrid search, RAG and agents for AI developers
$45/moFree plan
Visit site of Weaviate (partner link, opens in a new tab)
Algolia
AI APIs & Models
Prices not verified
API-first AI search and retrieval for sites and apps, with a free plan
Not yet verified
Prices not verifiedFree plan
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Anyscale
AI APIs & Models
Prices not verified
Managed Ray platform for data-heavy AI training and inference across clouds
Not yet verified
Prices not verifiedFree plan
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Baseten
AI APIs & Models
Prices not verified
Inference platform for deploying and scaling open-source and custom AI models
Not yet verified
Prices not verifiedFree plan
Visit site of Baseten (partner link, opens in a new tab)
Google AI Studio
AI APIs & Models
Prices not verified
Workspace for trying Gemini models and building apps with the Gemini API
Not yet verified
Prices not verifiedFree plan
Visit site of Google AI Studio (official site, opens in a new tab)
Weights & Biases
AI APIs & Models
Prices not verified
Experiment tracking and LLM app tracing for AI teams, with a self-hosted server
Not yet verified
Prices not verifiedFree plan
Visit site of Weights & Biases (partner link, opens in a new tab)

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