/install api-endpoint-tester
API Endpoint Tester
What This Does
A simple CLI tool to send HTTP requests to REST API endpoints and validate responses. Supports GET, POST, PUT, DELETE, PATCH methods with custom headers and request bodies (JSON or form data).
When To Use
- You need to test API endpoints manually or in scripts
- You want to validate HTTP status codes and response formats
- You're debugging API integrations and need quick requests
- You need to check if an endpoint is reachable and responding correctly
Usage
Basic GET request: python3 scripts/main.py run --url "https://api.example.com/users" --method GET
POST with JSON body: python3 scripts/main.py run --url "https://api.example.com/users" --method POST --body '{"name": "John", "email": "[email protected]"}'
With custom headers: python3 scripts/main.py run --url "https://api.example.com/users" --method GET --headers '{"Authorization": "Bearer token123"}'
Examples
Example 1: Simple GET request
python3 scripts/main.py run --url "https://jsonplaceholder.typicode.com/posts/1" --method GET
Output:
{
"status": "success",
"status_code": 200,
"headers": {
"content-type": "application/json; charset=utf-8"
},
"body": {
"userId": 1,
"id": 1,
"title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit",
"body": "quia et suscipit\
suscipit recusandae consequuntur expedita et cum\
reprehenderit molestiae ut ut quas totam\
nostrum rerum est autem sunt rem eveniet architecto"
},
"response_time_ms": 245
}
Example 2: POST with validation
python3 scripts/main.py run --url "https://jsonplaceholder.typicode.com/posts" --method POST --body '{"title": "foo", "body": "bar", "userId": 1}' --expected-status 201
Requirements
- Python 3.x
requestslibrary (install via pip if not available)
Limitations
- This is a CLI tool, not an auto-integration plugin
- Does not support WebSocket or streaming endpoints
- Limited to HTTP/HTTPS protocols (no gRPC, GraphQL, etc.)
- No built-in authentication beyond headers
- Does not save test suites or history (single request at a time)
- Timeouts default to 10 seconds
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install api-endpoint-tester - After installation, invoke the skill by name or use
/api-endpoint-tester - Provide required inputs per the skill's parameter spec and get structured output
What is API Endpoint Tester?
CLI tool to test REST API endpoints with various HTTP methods, headers, and payloads. It is an AI Agent Skill for Claude Code / OpenClaw, with 494 downloads so far.
How do I install API Endpoint Tester?
Run "/install api-endpoint-tester" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is API Endpoint Tester free?
Yes, API Endpoint Tester is completely free (open-source). You can download, install and use it at no cost.
Which platforms does API Endpoint Tester support?
API Endpoint Tester is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created API Endpoint Tester?
It is built and maintained by Derick (@derick001); the current version is v1.0.1.