A versatile testing tool for validating REST API endpoints, authentication flows, and webhook integrations with customizable request parameters.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install rest-api-tester
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install rest-api-tester using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is API Tester?
The API Tester is a robust utility within the Openclaw Skills collection specifically built for developers to interact with and validate RESTful services. It supports all standard HTTP methods including GET, POST, PUT, DELETE, and PATCH, offering complete control over headers, authentication tokens, and request bodies. By leveraging this tool, developers can bridge the gap between initial development and production-ready integrations through immediate feedback loops.
As a core component of the Openclaw Skills ecosystem, this skill simplifies the process of checking API health and validating complex JSON payloads. It is particularly effective for testing microservices architecture, third-party API integrations, and local development environments where quick, scriptable requests are essential for maintaining high code quality and reliability.
API Tester Use Cases
- Debugging REST API endpoints during active development cycles.
- Testing complex authentication flows including Bearer tokens and Basic Auth.
- Validating webhook payloads and incoming response structures.
- Monitoring API health and verifying response latency.
- Automating integration checks for third-party SaaS services.
How API Tester Works
- Define the target API endpoint URL and select the desired HTTP method.
- Configure specific request headers and authentication credentials such as API keys or Bearer tokens.
- Prepare the request body in JSON, form-data, or raw format depending on the endpoint requirements.
- Execute the request through the Openclaw Skills framework to capture the server response.
- Analyze the returned status code, response headers, and payload to validate successful execution.
- Utilize built-in performance tools to run multiple iterations and measure average response times.
API Tester Setup
To get started with API testing, ensure you have the necessary Python dependencies installed in your local environment:
pip install requests flask
Once the libraries are ready, you can import the Openclaw Skills snippets into your workflow to initialize your first GET or POST request suite.
API Tester Data Schema & Taxonomy
The skill processes and returns data structured for easy validation and logging. The standard output schema includes:
| Field | Type | Description |
|---|---|---|
| status | Integer | The HTTP status code returned by the server. |
| headers | Object | A dictionary containing all returned response headers. |
| body | String/JSON | The parsed response payload (automatically detects JSON). |
| time | Float | Total elapsed time for the request in seconds. |
| success | Boolean | A calculated indicator of a successful 2xx response range. |
API Tester Advanced Features
- Multi-endpoint comprehensive test suites for bulk validation of entire API surfaces.
- Automated response validation against specific required fields and metadata schemas.
- Local webhook listener integration using Flask for end-to-end lifecycle testing.
- Performance benchmarking that calculates min, max, and average response times over multiple iterations.
- Flexible authentication handling supporting both token-based and credential-based security.
SKILL.md
Loading
Related Openclaw Skills
QR Code Generator
A versatile tool for generating customizable, high-quality QR codes for URLs, WiFi credentials, contact cards, and more.
Batch File Renamer
An efficient utility for bulk renaming files using powerful regex patterns, sequential numbering, and timestamping.
Zod Schema Validation
A comprehensive documentation skill providing AI agents with instant access to Zod schema validation, TypeScript type inference, and error handling references.
Vercel CLI & Documentation
A comprehensive integration for managing Vercel deployments, projects, and documentation through standardized Openclaw Skills workflows.
Timestamp Converter
A versatile utility for converting between Unix timestamps, ISO 8601 dates, and localized human-readable formats.
Firecrawl CLI
A powerful command-line interface for scraping, crawling, and searching the web to generate clean markdown for AI context.
Featured*
