API Endpoint Tester — Test Any REST API from the Command Line

Test any REST API endpoint in one command. No Postman, no curl memorization, no setup.

WHAT IT DOES

• Test any HTTP method — GET, POST, PUT, PATCH, DELETE

• JSON body support — send payloads directly from the command line

• Response inspection — status code, timing, formatted JSON output

• Error handling — clear messages with HTTP status codes

• Zero dependencies — Pure Python stdlib (urllib) only

WHAT YOU GET

• apitest.py — The tester script (Python 3, zero dependencies)

HOW TO USE

python3 apitest.py https://jsonplaceholder.typicode.com/posts/1

python3 apitest.py https://api.example.com/create --method POST --body '{"key":"val"}'

REQUIREMENTS: Python 3.7+. No pip install needed.

PERFECT FOR: Developers debugging APIs, QA engineers running smoke tests, DevOps checking endpoint health, anyone tired of opening Postman for a quick test.

KEYWORDS: API tester, REST client, command-line API tool, HTTP debugging, endpoint testing, Postman alternative