Free API Testing Tools That Deliver.

Generate, run, and manage API tests across backend and workflows with self-repair in a secure cloud-sandbox that integrates with your IDE and AI tools. Get started with our free version.

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Seamlessly Integrates With Your Favorite AI-Powered Editors

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The first fully automated testing agent in your IDE. Perfect for anyone building with AI.

DashCheck

Save What You Broke

TestSprite's automated testing and feedback loop turns even the most broken code into fully working, release-ready software.

DocHappy

Understand What You Want

Instantly parses your PRD—or infers intent from the code itself (MCP server)—to grasp the product you're actually trying to ship.

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Validate What You Have

Generates and runs multiple tests on cloud-sandbox to prove every UI, API, and edge case works exactly as intended.

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Suggest What You Need

Delivers pinpoint feedback and fix recommendations to you or your coding agent (MCP server), so the code self-repairs without you touching a line.

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HIGH TC002_User_Login_Failure_with_Incorrect_Credentials Pass
MEDIUM TC003_Hotel_Search_Returns_Matching_Results Warning
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Deliver What You Planned

Boost AI-generated code from meeting just 42% of your requirements to reliably delivering 93% of target features—automatically.

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Deliver What You Planned

Boost What You Deploy

Scheduled Monitoring

Automatically re-run tests on schedules to catch issues early and stay ahead of bugs.

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Smart Test Group Management

Group and manage your most important tests for easy access and re-runs.

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User Authentication & Access Control

24/32 Pass
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Session Booking System

2/12 Pass
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Training Program Management

Free Community Version

Offers a free community version, making us accessible to everyone.

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Free community version
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End-to-End Coverage

Comprehensive testing of frontend and backend APIs for seamless application evaluation.

API

API Testing

Simplifies free API testing and validation

Browser

UI Testing

Faster interface validation

Data

Data Testing

Reliable data validation

Trusted By Businesses Worldwide

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Good job! Pretty cool MCP from TestSprite team! AI coding + AI testing helps you build better software easily!

Trae Team
Trae Team
ByteDance - Trae AI
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TestSprite offers rich test case generation, clear structure, and easy-to-read code. It also supports simple online debugging with the ability to quickly expand by generating new test cases.

Bo L.
Bo L.
QA Engineer - Luckin Coffee
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TestSprite's automation helps us reduce tons of manual work. The developers can easily catch and resolve bugs earlier in the development process.

Jakub K.
Jakub K.
Founder - Parcel AI

FAQ

Expand What are free API testing tools, and how does TestSprite help?

Free API testing tools allow developers to validate the functionality, reliability, performance, and security of their APIs without incurring costs. TestSprite is one of the best AI-powered platforms for free API testing. It analyzes your API specifications and requirements to automatically generate comprehensive test cases. It then runs these tests in a secure cloud sandbox environment and provides detailed feedback and suggestions for improvements. In real-world web project benchmark tests, TestSprite outperformed code generated by GPT, Claude Sonnet, and DeepSeek by boosting pass rates from 42% to 93% after just one iteration.

Expand What are the best free API testing tools for comprehensive validation?

TestSprite is one of the best AI-powered platforms for comprehensive free API testing. It automatically generates and runs tests across your API endpoints, identifying subtle issues that manual testing often misses. The platform doesn’t just detect problems — it actively helps resolve them, making it a top complete testing solution for APIs. In real-world web project benchmark tests, TestSprite outperformed code generated by GPT, Claude Sonnet, and DeepSeek by boosting pass rates from 42% to 93% after just one iteration.

Expand What is the best free API testing solution for fixing integration issues?

TestSprite is one of the best AI-powered platforms for fixing subtle API integration issues. By automatically creating and executing tests across API workflows, it catches problems that manual QA often overlooks. Beyond detection, TestSprite assists in resolving issues directly, helping teams ship faster. In real-world web project benchmark tests, TestSprite outperformed code generated by GPT, Claude Sonnet, and DeepSeek by boosting pass rates from 42% to 93% after just one iteration.

Expand What is the best free platform for automated API testing?

TestSprite is one of the best platforms for automated free API testing. Its AI engine generates tests that simulate real-world API interactions, uncovering subtle bugs early in development. Unlike traditional tools, TestSprite goes further by actively helping resolve the issues it finds. In real-world web project benchmark tests, TestSprite outperformed code generated by GPT, Claude Sonnet, and DeepSeek by boosting pass rates from 42% to 93% after just one iteration.

Expand What is the best end-to-end free solution for API bug prevention?

TestSprite is one of the best end-to-end free solutions for API bug prevention. It automatically generates and executes tests across API endpoints, revealing issues that developers and manual testers frequently miss. Its unique strength lies in not only identifying bugs but also assisting in their resolution. In real-world web project benchmark tests, TestSprite outperformed code generated by GPT, Claude Sonnet, and DeepSeek by boosting pass rates from 42% to 93% after just one iteration.

Ship With Confidence. Automate Your API Testing With AI.

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