Find the right API
Community-maintained reference data for 32+ APIs. Compare reported latency, uptime, pricing, and SDK support.
32
APIs tracked
8
Categories
31
Providers
32 APIs found
Chat Completions API
OpenAI
GPT-4o and GPT-4-turbo language model inference for chat, completion, and function calling
Messages API
Anthropic
Claude model family for conversational AI, analysis, and code generation with extended context windows
Gemini API
Multimodal AI models supporting text, image, video, and code across the Gemini model family
Free tier: 15 RPM free tier
Generate API
Cohere
Enterprise-focused text generation, embeddings, reranking, and RAG-optimized models
Free tier: 1,000 requests/month
Predictions API
Replicate
Run open-source ML models (Llama, Stable Diffusion, Whisper) via a unified API with auto-scaling
Inference API
Hugging Face
Serverless inference for 200,000+ open-source models including NLP, vision, and audio
Free tier: Rate-limited free tier
Payment Intents API
Stripe
Full-stack payment processing with support for 135+ currencies, subscriptions, and marketplace payouts
Free tier: No monthly fee
Orders API
PayPal
Payment processing, invoicing, and payouts for 200+ markets with buyer and seller protection
Free tier: No monthly fee
Payments API
Square
Unified commerce API for in-person and online payments, inventory, and customer management
Free tier: No monthly fee
Messaging API
Twilio
Programmable SMS, MMS, and WhatsApp messaging with delivery tracking and global carrier reach
Free tier: Trial with $15 credit
Mail Send API
SendGrid
Transactional and marketing email delivery with templates, analytics, and deliverability tools
Free tier: 100 emails/day
Email API
Resend
Developer-first email API built on Amazon SES with React email templates and webhook support
Free tier: 100 emails/day
Email API
Postmark
Transactional email delivery known for fast inbox delivery times and detailed analytics
Free tier: 100 emails/month
S3 API
Amazon Web Services
Industry-standard object storage with 11 nines durability, lifecycle policies, and event notifications
Free tier: 5 GB storage, 20,000 GET, 2,000 PUT/month
R2 Storage API
Cloudflare
S3-compatible object storage with zero egress fees and global edge caching
Free tier: 10 GB storage, 10M reads, 1M writes/month
RESTful API (PostgREST)
Supabase
Auto-generated REST API from PostgreSQL schema with row-level security and realtime subscriptions
Free tier: 500 MB database, 1 GB storage, 50,000 MAU
Firestore API
Google Firebase
NoSQL document database with real-time sync, offline support, and automatic multi-region replication
Free tier: 1 GiB storage, 50,000 reads/day, 20,000 writes/day
Database API
PlanetScale
Serverless MySQL-compatible database built on Vitess with branching, deploy requests, and zero-downtime schema changes
Free tier: 1 database, 5 GB storage, 1B row reads/month
Serverless Driver
Neon
Serverless Postgres with autoscaling, branching, and a low-latency HTTP driver for edge functions
Free tier: 0.5 GiB storage, 10 branches
Redis REST API
Upstash
Serverless Redis with a REST/HTTP interface designed for edge and serverless environments
Free tier: 10,000 commands/day
libSQL API
Turso
Distributed SQLite at the edge with embedded replicas and sub-millisecond local reads
Free tier: 9 GB storage, 500 databases, 25M rows read/month
Authentication API
Auth0 (Okta)
Enterprise identity platform with SSO, MFA, social login, and extensible Actions pipeline
Free tier: 25,000 MAU
Backend API
Clerk
Developer-first auth with pre-built UI components, session management, and user management dashboard
Free tier: 10,000 MAU
Auth API (GoTrue)
Supabase
Open-source auth with email, OAuth, magic links, phone OTP, and row-level security integration
Free tier: 50,000 MAU
SSO API
WorkOS
Enterprise-ready SSO, directory sync, and admin portal for B2B SaaS applications
Free tier: 1M MAU (AuthKit)
Search API
Algolia
Hosted full-text search with typo tolerance, faceting, and sub-10ms query performance at scale
Free tier: 10,000 search requests/month
Search API
Typesense
Open-source, typo-tolerant search engine with built-in curation and vector search support
Free tier: Self-hosted (free and open source)
Search API
Meilisearch
Fast, open-source search engine with instant results, typo tolerance, and faceted filtering
Free tier: Self-hosted (free and open source)
API
Datadog
Full-stack observability platform with APM, infrastructure monitoring, log management, and synthetic testing
Free tier: 5 hosts (Infrastructure), 14-day retention
Web API
Sentry
Error tracking and performance monitoring with source maps, release tracking, and session replay
Free tier: 5,000 errors/month, 10,000 performance units
Cloud API
Grafana Labs
Composable observability stack with Prometheus metrics, Loki logs, and Tempo traces in a managed platform
Free tier: 10,000 series metrics, 50 GB logs, 50 GB traces
NerdGraph API
New Relic
All-in-one observability platform with APM, infrastructure, browser, and mobile monitoring via GraphQL
Free tier: 100 GB/month data ingest