Best Developer APIs in 2025

API marketplace for finding and connecting to the world's top APIs.

Key RapidAPI features:

Wide Variety of APIs Unified Billing Ease of Integration Testing Environment

Monitor all your cloud services with our status page aggregator. IT teams choose IsDown to monitor all their vendors and get alerts whenever an outage occurs. Integration with Datadog, PagerDuty, Slack, Microsoft Teams, and a lot more.

Key IsDown.app features:

Status Dashboard Multiple Profiles for same account Slack App Zapier Integration

Try for free paid Free Trial $37.0 / Monthly (Pro)

The Collaboration Platform for API Development.

Key Postman features:

User-Friendly Interface Collaboration Comprehensive Testing Tools Extensive API Documentation

Open Source

Experimental API for Midjourney, Mureka, Runway, MiniMax, InsightFaceSwap, Pika & PixVerse.

paid $10.0 / Monthly (flat subscription to all API's)

Simple, powerful APIs for everyday dev tasks.

Key Abstract APIs features:

Ease of Use Variety of APIs Scalability Free Tier

Open Source

Midjourney lets you create images (paintings, digital art, logos and much more) simply by writing a prompt.

Key Midjourney features:

High-Quality Visuals Creative Inspiration User-Friendly Interface AI-Generated Art

Create impossible video.

Key RunwayML features:

User-Friendly Interface Pre-Trained Models Real-Time Collaboration Integration with Popular Tools

MiniMax AI empowers you to create captivating videos from text and images effortlessly. Experience the future of video generation with our innovative tools.

AhaSend is a pay-as-you-go Transactional Email Service Provider. Experience fair, transparent pricing and superior delivery with AhaSend.

Key AhaSend features:

Domains Webhooks Message routing Team members

freemium

JSONREPO is an API platform created for developers seeking fast, reliable, and scalable APIs.

freemium

Learn why more developers choose SendGrid for their email deliverability service to send transactional emails triggered by web apps. Get started for free.

Key SendGrid features:

Scalability API Integration Deliverability Analytics

WhatsApp API by Ultramsg.

Key Ultramsg features:

Ease of Use Reliability Scalability Comprehensive API

Simple IP address information.

Key ipinfo.io features:

Comprehensive Data Ease of Use Accuracy Scalability

Open Source

Create your own exclusive song with mureka.