api-tester

Test and debug REST and GraphQL APIs with curl and httpie.

18.1k|2.3k|Updated Feb 24, 2026
One-click install
npx skills add https://github.com/RightNow-AI/openfang --skill api-tester-rightnow-ai
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: api-tester
Source: https://github.com/RightNow-AI/openfang/tree/main/crates/openfang-skills/bundled/api-tester
Command: npx skills add https://github.com/RightNow-AI/openfang --skill api-tester-rightnow-ai

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps users efficiently test, debug, and validate APIs, ensuring they function correctly under various conditions and handle errors gracefully.

Core Features & Use Cases

  • Comprehensive API Testing: Supports REST, GraphQL, and common authentication methods.
  • Debugging Assistance: Provides guidance on troubleshooting failed requests and identifying root causes.
  • Use Case: You're developing a new API endpoint. Use this Skill to test its authentication, input validation, and error responses to ensure it's robust before deployment.

Quick Start

Use the api-tester skill to test the GET endpoint at https://api.example.com/users.

Frequently Asked Questions about api-tester

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I test REST and GraphQL APIs using curl?

To test REST and GraphQL APIs using curl, you execute HTTP requests targeting specific endpoints and validate the returned status codes, headers, and body structure. This process includes verifying authentication, error handling, and edge cases against API specifications.

What is the best way to debug failed API requests and identify root causes?

Debugging failed API requests involves analyzing HTTP status codes and response payloads to pinpoint discrepancies between expected and actual behavior. You troubleshoot by examining authentication failures, invalid input data, and improper error handling to identify root causes.

Can I validate API responses including status codes and headers against specifications?

Yes, you can validate API responses by checking the HTTP status codes, headers, and body structure returned by the server. This ensures the API functions correctly under various conditions and adheres to the defined specifications.

Does API testing cover common authentication methods and input validation?

API testing covers common authentication methods and input validation to ensure endpoints are robust. It verifies that APIs handle invalid inputs gracefully and enforce proper access controls before deployment.

Why does my API endpoint return unexpected error responses during testing?

Unexpected API error responses during testing often occur due to unhandled edge cases, incorrect authentication tokens, or invalid input data. Troubleshooting involves debugging the request payload and HTTP headers to identify the root cause of the failure.