AI APIs & Developer Tools with Free Tiers
AI model APIs and developer tools (hosting, databases, monitoring, email and more) that offer a free tier. Free tiers and limits change often, so confirm the details on the provider's pricing page before you rely on them.
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Algolia
Free Build plan for hosted search. 10K search requests/month, 50K records, 5K recommendation requests/month
AssemblyAI - Speech-to-text
Speech-to-text. Free credits to start - see pricing page
Auth0
Free plan for authentication (Okta). Up to 25,000 monthly active users, 1 custom domain, 5 organizations
Better Stack
Free plan for uptime monitoring and status page. 10 monitors and heartbeats, 1 status page, 3 GB logs retained 3 days
Brevo
Free plan for transactional and marketing email. Daily sending cap on free plan - see pricing page
Cerebras - Llama / Qwen models
Llama / Qwen models. Free tier with rate limits
CircleCI
Free plan with monthly build credits. Up to 6,000 build minutes/month, up to 5 active users, 30x concurrency
Clerk
Free plan for user authentication and management. Hobby: free, no credit card; organizations up to 20 members, 100 MRO per app
Cloudflare Pages
Free static site hosting with unlimited bandwidth on Cloudflare's network. See pricing page
Cloudflare Workers
Serverless functions on the edge, free plan. 100,000 requests/day, 10 ms CPU time per invocation; static asset requests free
Cloudflare Workers AI - LLMs (Llama, Mistral, etc.)
LLMs (Llama, Mistral, etc.). 10,000 Neurons/day free
Cloudflare Workers AI - Whisper / image models
Whisper / image models. 10,000 Neurons/day free
Cloudinary
Free plan for image and video management. 25 monthly credits, 3 users / 1 account
Cohere - Command models
Command models. Trial key: 1,000 API calls/month; Command A 20 req/min
Cohere - Embed / Rerank
Embed / Rerank. Trial key: 1,000 API calls/month total
Deepgram - Speech-to-text / TTS
Speech-to-text / TTS. $200 free credit, then pay-as-you-go
DeepInfra - Open models
Open models. See pricing page
DeepSeek API - DeepSeek models
DeepSeek models. Low-cost; see pricing page
Deno Deploy
Free plan for serverless JavaScript/TypeScript apps. 1M requests/month, 20 GiB egress/month
ElevenLabs - Text-to-speech
Text-to-speech. 10k credits/month, 3 Studio projects (no commercial license)
Firebase
Spark (no-cost) plan: Firestore, Realtime Database, Auth, Hosting. See pricing page
Fireworks AI - Open models
Open models. See pricing page
GitHub Actions
Free minutes for private repos; free for public repos. Free accounts: 2,000 minutes/month, 500 MB artifact storage (private repos); public repos free
GitHub Pages
Free static hosting from a GitHub repository. Site max 1 GB; soft limits 100 GB bandwidth/month, 10 builds/hour
GitLab
Free tier including CI/CD compute minutes. 400 compute minutes/month, 5 users per top-level group, 10 GiB storage
Google AI Studio (Gemini API) - Gemini Flash models
Gemini Flash models. Free tier with rate limits
Google AI Studio (Gemini API) - Gemini Pro models
Gemini Pro models. Free tier availability varies by model
Google AI Studio (Gemini API) - Gemma open models
Gemma open models. Free tier
Grafana Cloud
Free tier for metrics, logs, traces. 10k active metric series, 50 GB logs/month, 14-day retention
Groq - Llama models
Llama models. Free tier with per-model rate limits
Groq - Whisper (speech-to-text)
Whisper (speech-to-text). whisper-large-v3: 20 requests/min, 2K requests/day
Jina AI - Embeddings / Reader
Embeddings / Reader. Free API key tokens - see pricing page
Kinde
Free plan for authentication and feature flags. 10,500 monthly active users
Mailgun
Free plan for email sending API. 100 emails/day, 1 custom sending domain, 1-day log retention
Mistral AI - Codestral
Codestral. See pricing page
Mistral AI - Mistral Embed
Mistral Embed. Free experiment tier
Mistral AI - Mistral models (La Plateforme)
Mistral models (La Plateforme). Free experiment tier
MongoDB Atlas
Free shared cluster (M0). Free cluster: 512 MB storage, shared RAM/vCPU
Neon
Free plan for serverless Postgres with branching. 100 CU-hours per project, up to 2 CU (8 GB RAM), scales to zero after 5 min inactivity
Netlify
Free plan: static sites, deploy previews, serverless functions, forms. Free: 300 credits/month, unlimited deploy previews
NVIDIA NIM (build.nvidia.com) - Hosted model endpoints
Hosted model endpoints. Free API access for prototyping (developer program)
OpenRouter - Models tagged :free
Models tagged :free. Free variants with daily request limits
Pinecone
Starter (free) plan for vector database. See pricing page
PostHog
Free tier for product analytics, session replay, feature flags. Monthly: 1M analytics events, 5K session recordings, 1M feature flag requests, 100K…
Postman
Free plan for API design and testing. Free plan: 100 AI credits, API client, mock servers, collection runner
Postmark
Free developer plan for testing transactional email. 100 emails/month (testing; no overages)
Render
Free instances for web services, static sites, free Postgres. Free web service: 512 MB RAM; free Postgres: 256 MB RAM, 1 GB storage; free services…
Replicate - Community models
Community models. See pricing page
Resend
Free plan for transactional email API. 100 emails/day, 3 custom domains, 30-day data retention
Scaleway Generative APIs - Open models
Open models. Free tokens to start - see pricing page
Sentry
Developer (free) plan for error and performance monitoring. Developer plan: 1 user, error monitoring and tracing, 10 custom dashboards
Supabase
Free plan: Postgres database, auth, storage, edge functions. 500 MB database, 50,000 MAU, 1 GB file storage, 2 active projects; paused after 1 week…
Together AI - Open models
Open models. See pricing page
Turso
Free plan for SQLite-compatible edge databases. 100 databases, 5 GB storage, 500M rows read and 10M rows written per month
Upstash
Free tier for serverless Redis, Kafka-style queues and vector. Redis: 250 MB data, 10 GB bandwidth, 500K commands per month
UptimeRobot
Free plan for uptime monitors. 50 monitors at 5-minute interval
Vercel
Hobby plan for personal, non-commercial projects: deployments, previews, serverless functions. See pricing page
Voyage AI - Embedding models
Embedding models. First 200M tokens free per account (voyage-4 family)
xAI API - Grok models
Grok models. See pricing page