Best APIs for AI Agents by Category
416 APIs scored on how well they work with AI coding agents. Each category page ranks the top contenders by an 8-signal rubric covering SDKs, env auth, headless support, JSON, rate limits, and more.
AI & Machine Learning
APIs for language models, image generation, speech recognition, and computer vision. These power the AI features in modern applications - from chatbots to content generation pipelines.
25 APIs rankedDeveloper Tools
Source control, CI/CD, hosting, error tracking, and API testing tools. The infrastructure that keeps development teams productive.
23 APIs rankedCommunication
Email, SMS, voice, push notifications, and real-time messaging APIs. The building blocks for any app that needs to reach users or enable conversations.
16 APIs rankedFinance & Payments
Browse the top Finance & Payments APIs used by developers worldwide.
16 APIs rankedMaps & Geolocation
Mapping, geocoding, routing, and IP geolocation APIs. Essential for any app that needs to understand where users are or how to get somewhere.
15 APIs rankedData & Information
Weather, news, translation, business data, and reference APIs. Enrich your app with real-world data.
15 APIs rankedFintech & Banking
Banking connectivity, stock trading, crypto exchange, and market data APIs. Connect your app to the financial system.
14 APIs rankedPayments & Commerce
Payment processing, subscription billing, and e-commerce platform APIs. Handle everything from one-off charges to complex marketplace payouts.
13 APIs rankedAuthentication & Identity
Identity management, OAuth, verification, and bot protection APIs. Secure your app without building auth from scratch.
12 APIs rankedSocial Media
APIs for Facebook, Twitter/X, Instagram, YouTube, Discord, Slack, and other platforms. Read feeds, post content, and build integrations.
12 APIs rankedShipping & Logistics
Carrier services and multi-carrier shipping APIs. Get rates, print labels, and track packages.
12 APIs rankedCRM & Marketing
CRM platforms, email marketing, advertising, and customer support APIs. Manage the full customer lifecycle.
12 APIs rankedAutomation & Integration
Workflow automation, project management, scheduling, and file storage APIs. Connect your tools and automate repetitive work.
12 APIs rankedCloud & Infrastructure
Object storage, CDN, serverless compute, and media management APIs. The cloud primitives that modern apps are built on.
11 APIs rankedDatabases & Backend
Managed databases, backend-as-a-service, and vector database APIs. Store and query data without managing servers.
10 APIs rankedCRM & Sales
Browse the top CRM & Sales APIs used by developers worldwide.
10 APIs rankedAnalytics & Monitoring
Product analytics, observability, and customer data platforms. Understand what users do and keep your systems healthy.
9 APIs rankedMedia & Streaming
Video hosting, live streaming, music, stock photos, and GIF APIs. Handle media upload, processing, and delivery.
9 APIs rankedPDF & Document
Browse the top PDF & Document APIs used by developers worldwide.
8 APIs rankedTranslation & NLP
Browse the top Translation & NLP APIs used by developers worldwide.
8 APIs rankedCalendar & Scheduling
Browse the top Calendar & Scheduling APIs used by developers worldwide.
7 APIs rankedProject Management
Browse the top Project Management APIs used by developers worldwide.
7 APIs rankedVideo & Media
Browse the top Video & Media APIs used by developers worldwide.
7 APIs rankedSearch & Data
Search engines, web scraping, and SERP data APIs. Add fast, relevant search to any application.
6 APIs rankedContent Management
Headless CMS, productivity tools, and content delivery APIs. Manage and serve content across any frontend.
6 APIs rankedRealtime & WebSockets
Browse the top Realtime & WebSockets APIs used by developers worldwide.
6 APIs rankedForms & Surveys
Browse the top Forms & Surveys APIs used by developers worldwide.
6 APIs rankedKYC & Identity
Browse the top KYC & Identity APIs used by developers worldwide.
6 APIs rankedFeature Flags
Browse the top Feature Flags APIs used by developers worldwide.
6 APIs rankedQueue & Messaging
Browse the top Queue & Messaging APIs used by developers worldwide.
6 APIs rankedImage Processing
Browse the top Image Processing APIs used by developers worldwide.
6 APIs rankedVector Databases
Browse the top Vector Databases APIs used by developers worldwide.
6 APIs rankedCustomer Support
Browse the top Customer Support APIs used by developers worldwide.
6 APIs rankedLogging & Observability
Browse the top Logging & Observability APIs used by developers worldwide.
6 APIs rankedSubscription & Billing
Browse the top Subscription & Billing APIs used by developers worldwide.
6 APIs rankedTravel & Hospitality
Flight search, hotel booking, and ride-hailing APIs. Build travel experiences on top of global inventory.
5 APIs rankedPush Notifications
Browse the top Push Notifications APIs used by developers worldwide.
5 APIs rankedE-Signatures
Browse the top E-Signatures APIs used by developers worldwide.
5 APIs rankedCDN & Edge
Browse the top CDN & Edge APIs used by developers worldwide.
5 APIs rankedDNS
Browse the top DNS APIs used by developers worldwide.
5 APIs rankedSecrets Management
Browse the top Secrets Management APIs used by developers worldwide.
5 APIs rankedTax & Compliance
Browse the top Tax & Compliance APIs used by developers worldwide.
5 APIs rankedSEO & Web Analytics
Browse the top SEO & Web Analytics APIs used by developers worldwide.
5 APIs rankedBlockchain & Crypto
Browse the top Blockchain & Crypto APIs used by developers worldwide.
5 APIs rankedHR & Payroll
Browse the top HR & Payroll APIs used by developers worldwide.
5 APIs rankedWeather
Browse the top Weather APIs used by developers worldwide.
4 APIs rankedNews & Content
Browse the top News & Content APIs used by developers worldwide.
4 APIs rankedSecurity
Breach detection, threat intelligence, and dependency scanning APIs. Protect your users and your code.
3 APIs ranked