API testing tool online - AI tools

Intercept.rest is an AI-powered API debugging tool that provides real-time monitoring, mock API capabilities, and collaboration features for developers, similar to Chrome Dev Tools' Network tab but works across any API, mobile apps, webhooks, and frontend applications.

• Contact for Pricing

RestHuman is an AI-powered REST client tool that simplifies API testing, debugging, and development through an intuitive interface for making HTTP requests and analyzing responses.

• Other

APIPing is an AI-powered API testing tool that detects end-to-end latency, identifies bottlenecks, and improves user experience through global performance insights and server timing analysis.

• Freemium
• From 8$

Conektto is an AI-powered API design platform that simplifies API integration and development through automated code generation, testing, and collaborative features.

• Freemium

FlowTestAI is a GenAI-powered Open Source IDE designed for crafting, visualizing, and managing API-first workflows. It offers a fast, lightweight, and localized solution for seamless API integration and enhanced privacy.

• Other

Aspen is a free, native macOS app for testing REST APIs locally. It features an AI assistant to speed up API integrations, with no login required.

• Free

Mockoon is a free, open-source tool for quickly designing and running mock REST APIs locally, without needing remote deployment or an account. It integrates with OpenAPI and offers advanced features for realistic API simulation.

• Freemium
• From 15$

noSwag is a platform for generating, executing, and monitoring API tests directly from OpenAPI/Swagger specifications. Simplify your API testing workflow from NoCode to ProCode.

• Freemium
• From 9$

SmartMock.io enables developers to quickly create and deploy HTTP API mocks online, streamlining software testing and development while reducing third-party dependencies and boilerplate.

• Freemium
• From 19$

Hello API offers a seamless solution to create interactive, in-browser API playgrounds and documentation, streamlining developer onboarding and reducing support needs.

• Free Trial
• From 20$

Curl2Url is an online curl execution service that allows users to run curl commands from any browser-enabled device, convert requests to multiple programming languages, and use residential proxies for testing.

• Freemium
• From 19$

Sparrow is an AI-enhanced API testing and collaboration platform designed to streamline development workflows. It supports REST, WebSocket, Socket.IO, and GraphQL protocols, offering automated testing, AI assistance, and secure team collaboration features.

• Freemium
• From 10$

HTTPie is a user-friendly API testing client available for both terminal and desktop environments, designed to simplify interaction with HTTP servers, RESTful APIs, and web services.

• Freemium

Qodex.ai is an AI-powered API testing platform that automates end-to-end testing processes with zero coding required, offering comprehensive test coverage and auto-healing capabilities for enterprise-level QA efficiency.

• Freemium
• From 199$

Equixly offers continuous AI-powered security testing for running APIs, ensuring early flaw detection to facilitate swift and less invasive remediation, adhering to compliance, and securing code.

• Contact for Pricing
• API

MockLoop is a high-performance API simulator designed for developers and AI systems to test AI workflows locally without cloud dependencies, featuring built-in logging, dynamic response editing, and scenario switching for fast feedback loops.

• Other

RapidAPI for Mac is a full-featured HTTP client and API development tool designed for macOS, enabling users to test, document, and manage APIs effortlessly with a robust, visually intuitive interface.

• Free

Mocki enables developers to create, run, and deploy customizable mock APIs for testing, development, and simulating real-world scenarios, offering a streamlined API mocking solution.

• Free Trial
• From 15$

Step CI is an open-source API test automation framework that enables automated testing for security, performance, and load testing across REST, GraphQL, gRPC, and SOAP APIs.

• Freemium

WireMock Cloud is an AI-powered API simulation platform that helps developers, QA teams, and AI agents build and test software faster by replacing unreliable third-party APIs with realistic mocks.

• Freemium

ExtendsClass is a free online toolbox offering a comprehensive suite of developer tools, including syntax validators, code formatters, HTTP clients, and data converters, all accessible directly in a browser without installation.

• Free

Testr is an AI-powered testing platform that allows users to describe test scenarios in plain English, which are then executed automatically using AI vision and Puppeteer automation, providing comprehensive results with videos, screenshots, and reports.

• Freemium
• From 10$

KushoAI uses AI agents to generate comprehensive, ready-to-run test suites for web interfaces and APIs, significantly reducing testing time and improving code quality.

• Free

NativeRest is a high-efficiency, cross-platform desktop REST API client designed for fast, memory-efficient API development and testing, supporting offline work, code generation, cloud sync, and advanced organization features.

• Pay Once

Keploy is a unified testing platform that uses AI to automatically generate, validate, and maintain unit, integration, and API tests. It offers zero false positives and high coverage with minimal effort.

• Freemium

BlazeMeter is an AI-powered continuous testing platform that helps teams test at scale across web, mobile, API, and enterprise applications, enabling enterprises to accelerate software delivery with unified testing solutions.

• Freemium
• From 79$

Mockae is an open-source fake API tool that allows developers to create custom mock REST APIs instantly using Lua code for testing and prototyping.

• Free

Hanabi.rest is an AI-powered platform that allows users to build and deploy REST APIs from natural language and screenshots. It supports multiple runtimes including Cloudflare Workers, Fastly, Deno, and Node.js.

• Usage Based

Runscope API Monitoring provides continuous uptime and performance monitoring for your APIs, helping you detect and resolve issues before they impact customers. With real-time alerts, global testing, and AI-powered scripting, teams can ensure API reliability and data accuracy 24/7.

• Paid
• From 79$

Roya accelerates API design with AI-powered endpoint generation and real-time collaboration. Visualize API usage on app screenshots for streamlined development.

• Free