---
title: "API Testing & Debugging - Air Market"
description: "When a call to an API fails or returns something odd, it can be hard to tell whether the cause is the request, the login or the data shape. This helps debug REST and GraphQL APIs by looking at status…"
canonical: "https://airmarket.ai/app/rest-graphql-debug"
---

[Air Market](/) / [Developer Tools](/category/devtools) / API Testing & Debugging

Skill by [Nous Research](/@nousresearch)

# API Testing & Debugging

Find out why your API call is failing

## What this does

When a call to an API fails or returns something odd, it can be hard to tell whether the cause is the request, the login or the data shape. This helps debug REST and GraphQL APIs by looking at status codes, authentication and schemas, and reproducing the problem. Reach for it when an API is not behaving.

### Top 3 things it does for you

- Work out why an API call returns an error
- Check whether authentication is the problem
- Reproduce an API bug

## Information

**API Testing & Debugging at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [Nous Research](/@nousresearch) |
| Category | [Developer Tools](/category/devtools) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Languages | en |
| Version | 1.2.0 |
| Size | 15 KB |
| Licence | MIT |
| Repository | [NousResearch/hermes-agent](https://github.com/NousResearch/hermes-agent/tree/7113a69248ffe831e4165247553e0f3668c0260a/optional-skills/software-development/rest-graphql-debug) |
| GitHub stars | 261,931 (as of Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of API Testing & Debugging and flagged nothing. AIR's verdict: **safe**.

**What API Testing & Debugging's check was run against**

|  |  |
| --- | --- |
| Commit | 7113a69248ffe831e4165247553e0f3668c0260a |
| Content hash | 2a4d71318128416466a7085f119084d2dda5020f00fd8cd3d0ec64a42e27cb98 |
| Files read | [Browse the files at this exact commit](https://github.com/NousResearch/hermes-agent/blob/7113a69248ffe831e4165247553e0f3668c0260a/optional-skills/software-development/rest-graphql-debug/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for API Testing & Debugging](/security/rest-graphql-debug)

## About API Testing & Debugging

It looks at status codes, authentication and schemas, and helps reproduce the problem.

## What's inside

- SKILL.md - instructions

## Questions

### Is API Testing & Debugging safe to install?

AIR scanned this exact version of API Testing & Debugging and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit 7113a69248ff, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/rest-graphql-debug.

### How do I install API Testing & Debugging?

Open https://airmarket.ai/app/rest-graphql-debug on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/NousResearch/hermes-agent/tree/7113a69248ffe831e4165247553e0f3668c0260a/optional-skills/software-development/rest-graphql-debug. Install from that link, not the branch.

## Related on Air Market

- [More Developer Tools listings](/category/devtools)
- [Everything by Nous Research](/@nousresearch)

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Canonical URL: <https://airmarket.ai/app/rest-graphql-debug>