Best REST API Products in 2025

Data and insights via APIs.

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Key Flagsmith features:

Feature Flags Remote Config A/B/X Testing & Optimization Organization Management

Try for free Open Source freemium

The most flexible way to mock REST APIs with Lua code execution.

Open Source

The Collaboration Platform for API Development.

Key Postman features:

User-Friendly Interface Collaboration Comprehensive Testing Tools Extensive API Documentation

Open Source

A cat(1) clone with wings.

Key Bat features:

Syntax Highlighting Git Integration Line Numbering Paging Support

Weather & Climate Data API for Analysts.

Key OikoLab features:

Comprehensive Data User-Friendly Platform Customizable Features Integration Capabilities

freemium $0.01 ($0.01/unit (1 unit = 1 month x 1 parameter x 1 location))

The Only MT4 REST API with No Limits, No Restrictions & 24/7 Access.

Full-Text Search, backup, synchronize and organize your shell history.

Key ShellHistory features:

User-Friendly Interface Comprehensive Command Logging Search Functionality Cross-Platform Support

Takeme is a ride hailing app which provides transportation services to the people of Saudi Arabia.

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

A nocode Tool to build complex API endpoints with simple drag and drop blocks.

An opinionated framework-less tool aimed at intermediate-to-advanced level programmers to start implementing REST APIs swiftly and efficiently.

Open Source free

JSON Placeholder is a modern platform that provides you online REST API, which you can instantly use whenever you need any fake data.

Key JSON Placeholder features:

Free to Use Reliable and Well-Maintained Ease of Use Variety of Data Types

Deploy Rest APIs in one click.