The Best API Integrations Apps of 2026

Encrypt localhost access with secure, outbound-only Cloudflare tunnels

Turn one template into thousands of on-brand images, videos, and PDFs through a single API call

Self-hosted Resend alternative that lets you send unlimited email through SES, SendGrid, or Mailgun without paying per message

Open Source Integration Layer for AI Agents

Write your backend as TypeScript files. Call them like local functions

GitHub releases, one clean download link per visitor

Turn templates into videos and images via API

Receive form submissions for any website, no backend required

328 data & scraping APIs. One key. Pay per request

The open protocol for AI job discovery and application

Live UTC clock with one-click copy for ISO 8601 and Unix time

Create your company's AI operating system

Headless CMS for blogs and media

One API for millions of high-quality logos and brand data

Control AI applications with one gateway

Build and share AI models

Turn photos into 3D body models

Increase conversions with customizable checkout pages