Category:
All
API Testing
Documentation
API Design
Management
Integration
Security
Monitoring
Development
Pricing:
All
Free
Freemium
Paid
P
Postman
API development platform
API Testing
Comprehensive API development platform that simplifies every step of building an API and streamlines collaboration for faster, better API creation.
Expert Insight
Postman's ecosystem approach transformed API development by combining testing, documentation, and collaboration in one platform. Its strength lies in making complex API workflows accessible to both technical and non-technical team members.
KEY FEATURES
API Testing Mock Servers Documentation Team Collaboration
I
Insomnia
REST & GraphQL client
API Testing
Lightweight, open-source API client for REST, GraphQL, and gRPC with a clean interface and powerful features for testing and debugging APIs.
Expert Insight
Insomnia excels in simplicity without sacrificing power. Its minimalist design and native support for modern API protocols make it ideal for developers who want efficient testing without complexity.
KEY FEATURES
Clean Interface Environment Variables Code Generation Plugin Support
S
SwaggerHub
OpenAPI platform
Documentation
Collaborative platform for API design and documentation using OpenAPI specifications, enabling teams to build better APIs faster with standardized documentation.
Expert Insight
SwaggerHub pioneered the design-first approach to API development. Its strength lies in creating a single source of truth for API specifications that automatically generates documentation, client SDKs, and server stubs.
KEY FEATURES
OpenAPI 3.0 Auto Documentation Version Control Code Generation
K
Kong Gateway
API gateway platform
Management
World's most trusted open-source API gateway built for modern architectures including microservices, cloud-native, and serverless deployments.
Expert Insight
Kong's plugin architecture revolutionized API gateway flexibility. Its ability to handle massive scale while maintaining simplicity makes it the preferred choice for enterprises managing thousands of APIs across diverse environments.
KEY FEATURES
High Performance Plugin Ecosystem Rate Limiting Analytics
A
Apidog
All-in-one API platform
API Design
Comprehensive API development platform combining design, testing, documentation, and mocking in one unified environment for complete API lifecycle management.
Expert Insight
Apidog's unified approach eliminates the need for multiple tools by providing everything from API design to automated testing in one platform. Its visual interface makes API development accessible to entire teams, not just developers.
KEY FEATURES
Visual Designer Auto Testing Mock Server Code Generation
S
Stoplight
Design-first API platform
API Design
Design-first API platform that enables teams to design, document, and build APIs collaboratively with comprehensive governance features and visual tools.
Expert Insight
Stoplight's strength lies in bridging the gap between technical and non-technical team members. Its visual design tools and comprehensive governance features ensure API consistency across large organizations.
KEY FEATURES
Visual Editor Style Guides Mock Servers Git Integration
R
ReadMe
Developer documentation
Documentation
Developer-focused documentation platform that creates beautiful, interactive API documentation with built-in testing capabilities and analytics.
Expert Insight
ReadMe revolutionized API documentation by focusing on developer experience. Its interactive features allow developers to test APIs directly within the documentation, significantly improving adoption rates and reducing support tickets.
KEY FEATURES
Interactive Docs Custom Branding Usage Analytics Developer Metrics
R
RapidAPI
API marketplace
Integration
World's largest API marketplace with thousands of APIs, providing discovery, testing, and integration tools for developers to quickly find and use APIs.
Expert Insight
RapidAPI's marketplace approach democratized API access by providing a single platform to discover, test, and integrate thousands of APIs. Its unified billing and authentication simplify multi-API workflows significantly.
KEY FEATURES
API Marketplace Unified Billing Testing Tools Analytics
H
Hoppscotch
Lightweight API client
API Testing
Fast, lightweight, web-based API client that works directly in your browser without installation, perfect for quick API testing and development.
Expert Insight
Hoppscotch's browser-based approach eliminates installation friction while maintaining powerful features. Its minimalist design and speed make it perfect for developers who need quick, efficient API testing without complexity.
KEY FEATURES
No Installation Real-time Testing WebSocket Support PWA Support
Z
Zapier
No-code automation
Integration
No-code automation platform that connects over 7,000 apps through simple trigger-action workflows, making API integration accessible to everyone.
Expert Insight
Zapier democratized API integration by eliminating the need for coding. Its vast app ecosystem and simple trigger-action model make it perfect for business users to create powerful automations without technical expertise.
KEY FEATURES
7000+ Integrations Multi-step Zaps Conditional Logic Team Collaboration
A
AWS API Gateway
Serverless API management
Management
Fully managed service for creating, publishing, maintaining, monitoring, and securing APIs at any scale with seamless AWS integration and serverless architecture.
Expert Insight
AWS API Gateway excels in serverless architectures by eliminating infrastructure management. Its pay-per-use model and native AWS integrations make it ideal for cloud-first organizations building scalable applications.
KEY FEATURES
Auto Scaling Lambda Integration CloudWatch Monitoring Security
S
SoapUI
API testing suite
API Testing
Leading API testing tool for SOAP and REST services with advanced testing capabilities including functional, load, and security testing features.
Expert Insight
SoapUI remains the gold standard for SOAP API testing while excellently supporting modern REST services. Its comprehensive testing capabilities make it essential for enterprise environments with mixed API protocols.
KEY FEATURES
SOAP & REST Load Testing Security Testing Data-driven Tests
R
Redocly
OpenAPI documentation
Documentation
Developer experience platform focused on beautiful OpenAPI documentation with advanced API governance and quality assurance features for modern APIs.
Expert Insight
Redocly's focus on developer experience shows in its beautiful, responsive documentation that works perfectly across devices. Its governance features ensure API consistency and quality across large development teams.
KEY FEATURES
Beautiful Docs API Linting Custom Branding Multi-file Support
A
Apigee
Enterprise API platform
Management
Google Cloud's full-featured API management platform with advanced analytics, security, and monetization capabilities for enterprise-scale API programs.
Expert Insight
Apigee's enterprise-grade features like advanced analytics, API monetization, and comprehensive security make it the go-to choice for large organizations managing complex API ecosystems at massive scale.
KEY FEATURES
Advanced Analytics API Monetization Security Policies Developer Portal
T
Thunder Client
VS Code API client
API Testing
Lightweight REST API client extension for VS Code that provides powerful testing capabilities without leaving your development environment.
Expert Insight
Thunder Client's integration directly into VS Code eliminates context switching for developers. Its lightweight approach and familiar interface make API testing a seamless part of the development workflow.
KEY FEATURES
VS Code Integration Environment Variables Test Scripts Collections
T
Tyk
Open source gateway
Management
Open-source API gateway and management platform with strong GraphQL support and Universal Data Graph capabilities for modern API architectures.
Expert Insight
Tyk's Universal Data Graph approach enables seamless composition of multiple APIs and services into unified GraphQL interfaces. Its performance-focused architecture handles enterprise-scale traffic with minimal latency.
KEY FEATURES
GraphQL Native High Performance Multi-Protocol Developer Portal
B
Bruno
Opensource API client
API Testing
Fast and Git-friendly opensource API client that stores collections directly in folders on your filesystem, perfect for version control workflows.
Expert Insight
Bruno's filesystem-based approach revolutionizes API collection management by storing everything as plain text files. This enables proper version control, diff tracking, and collaborative editing that traditional API clients struggle with.
KEY FEATURES
Git Integration Offline First Open Source Text-based Storage
M
MuleSoft Anypoint
Integration platform
Integration
Comprehensive integration platform that connects applications, data, and devices with API-led connectivity approach for enterprise digital transformation.
Expert Insight
MuleSoft's API-led connectivity methodology transforms how enterprises approach integration. Its strength lies in creating reusable integration assets that accelerate digital transformation initiatives across complex enterprise environments.
KEY FEATURES
Visual Designer Pre-built Connectors API Management DataWeave