The Modern API Directory
Find, Compare, and Monitor APIs
Discover the best APIs for your projects. Compare pricing, check uptime, and find SDKs -- all in one place.
24APIs indexed
10categories
Real-time monitoring
Featured APIs
Hand-picked APIs trusted by developers worldwide
Twilio
Cloud communications platform for SMS, voice, video, WhatsApp, and email at scale.
Basic Authpaid
javascriptpythonruby+4
1.4k99.95%
Anthropic
Claude large language models for text generation, analysis, vision, and tool use with industry-leading safety.
API Keypaid
javascriptpython
2.5k99.85%
OpenAI
Large language models (GPT-4, GPT-4o), image generation (DALL-E), embeddings, and speech APIs.
API Keypaid
javascriptpythondotnet+2
8.2k99.80%
Stripe
Complete payments platform with support for cards, wallets, subscriptions, invoicing, and marketplace payouts.
API Keyfreemium
javascriptpythonruby+4
22k99.99%
Google Maps
Comprehensive mapping platform with geocoding, directions, Street View, and Places APIs.
API Keyfreemium
javascriptpythonjava+2
2.8k99.99%
Resend
Modern email API built for developers, with React email templates and excellent deliverability.
API Keyfreemium
javascriptpythonruby+4
80099.90%
Clerk
Drop-in authentication and user management with pre-built UI components for React and Next.js.
JWTfreemium
javascriptpythongo+1
4.2k99.90%
Auth0
Flexible identity platform with universal login, MFA, social connections, and enterprise SSO.
OAuth 2.0freemium
javascriptpythonruby+6
2.0k99.95%
Algolia
Lightning-fast search and discovery API with typo tolerance, faceting, and AI-powered recommendations.
API Keyfreemium
javascriptpythonruby+6
1.3k99.99%
Top APIs by Stars
Most popular APIs ranked by GitHub stars
Elasticsearch
Distributed search and analytics engine for full-text search, logging, and real-time data exploration.
API Keyfreemium
javascriptpythonruby+5
71k99.95%
Stripe
Complete payments platform with support for cards, wallets, subscriptions, invoicing, and marketplace payouts.
API Keyfreemium
javascriptpythonruby+4
22k99.99%
Mapbox
Custom maps, geocoding, navigation, and location search APIs for mobile and web applications.
API Keyfreemium
javascriptpythonjava+2
12k99.95%
OpenAI
Large language models (GPT-4, GPT-4o), image generation (DALL-E), embeddings, and speech APIs.
API Keypaid
javascriptpythondotnet+2
8.2k99.80%
Discord API
Build bots, integrate apps, and manage communities with Discord's rich messaging and gateway APIs.
OAuth 2.0free
javascriptpythonrust+2
5.8k99.90%
Firebase Auth
Google-backed auth service with email/password, phone, and social provider sign-in out of the box.
JWTfreemium
javascriptpythonjava+4
4.8k99.99%
Clerk
Drop-in authentication and user management with pre-built UI components for React and Next.js.
JWTfreemium
javascriptpythongo+1
4.2k99.90%
AWS S3
Industry-standard object storage with virtually unlimited scalability, 99.999999999% durability.
API Keypaid
javascriptpythonruby+5
3.1k99.99%
Browse by Category
Explore APIs organized by use case
Brain
AI / ML
2 APIs
Artificial intelligence and machine learning APIs
Shield
Authentication
3 APIs
Identity management and auth provider APIs
HardDrive
Cloud Storage
2 APIs
Object storage and file management APIs
MessageSquare
Communication
2 APIs
SMS, voice, video, and messaging APIs
Mail
Email
3 APIs
Transactional and marketing email APIs
MapPin
Maps & Location
2 APIs
Geocoding, mapping, and location intelligence APIs
CreditCard
Payments
4 APIs
Payment processing, billing, and subscription APIs
Search
Search
2 APIs
Full-text search and discovery APIs
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