API Testing Tool
HTTP API Testing Tool
Response
Simulate HTTP API requests online with GET, POST, PUT, PATCH, DELETE, JSON parameters, and headers
API Testing Tool
The API Testing Tool is an online HTTP request debugging tool for simulating API requests from a client to a server and viewing the response. It supports RESTful API testing and lets you configure request parameters, headers, body data, cookies, and proxies to help developers quickly debug APIs, verify responses, and generate API documentation.
Key Features
- Supports HTTP/HTTPS request testing
- Supports GET, POST, PUT, PATCH, DELETE, and other request methods
- Supports Query parameter configuration
- Automatically parses parameters from URLs
- Supports batch input of request parameters
- Supports Header configuration
- Supports Cookie management
- Supports JSON, Form Data, and other request body formats
- Supports cURL command import
- Supports request history
- Supports exporting API test results
- Supports online API documentation generation
How to Use
- Enter the API endpoint URL.
- Select an HTTP request method.
- Configure Query parameters, Header, or Body data.
- Click Send Request.
- View the response status code, response time, and returned data.
Supported Request Types
| Request Method | Purpose |
|---|---|
| GET | Retrieve data from the server. |
| POST | Submit data or create resources. |
| PUT | Update a complete resource. |
| PATCH | Update part of a resource. |
| DELETE | Delete a server resource. |
Request Parameter Support
The tool supports multiple ways to configure API request parameters, making it easy to build complex HTTP requests.
- Query parameters: URL query parameters, such as ?page=1&limit=20.
- Header: Configure request headers such as Authorization and Content-Type.
- Cookie: Simulate requests with a browser login session.
- Body: Supports JSON, text, form data, and other request content.
cURL Import
Paste a cURL command directly into the tool to automatically parse the URL, request method, Header, and request parameters and quickly reproduce the actual API request environment.
API Documentation Generation
The API Testing Tool can generate API documentation based on the request configuration and automatically organize the request URL, request method, parameter descriptions, request examples, and response results.
The generated API documentation can be used for team development, API debugging records, and API delivery.
Export
Export API test configurations and request results to save testing records and support team sharing and API maintenance.
Use Cases
- REST API development and testing
- Frontend and backend API integration testing
- Third-party API verification
- Payment API testing
- Webhook API debugging
- API documentation organization
- API troubleshooting for developers
- API verification for testers
Frequently Asked Questions
What is API testing?
API testing is a testing method that simulates client requests to check whether a server API returns data as expected. It is commonly used to verify API functionality, parameter handling, and response results.
Does it support REST API testing?
Yes. It can test RESTful APIs based on HTTP/HTTPS.
Can I test APIs that require a Token?
Yes. You can add Authorization, Bearer Token, and other authentication information through the Header.
Will request data be saved?
The tool is intended for API debugging. Users can save test history or export API configurations as needed.
Security Notes
When using the API testing tool, do not submit sensitive production data, passwords, or private keys. Testing with a test environment and test account is recommended.
What Is an HTTP API Testing Tool?
- Query parameter management: automatically parse parameters from a complete URL or enter key-value pairs in batches without manually constructing the query string
- Flexible request bodies: support JSON, forms, plain text, and other formats for different API data submission requirements
- One-click cURL import: paste a cURL command copied from a terminal and automatically convert it into the corresponding request configuration
- Customizable headers and cookies: configure headers such as Authorization and Content-Type and include cookies to simulate a logged-in session
- Proxy support: configure a proxy server for debugging internal network APIs or cross-origin scenarios