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GraphQL Voyager

Tool manual · Kali & common usage

Web testing · Intermediate · Web testing lane

IntermediateAPI Testing
Authorized usage only. Capture and inspect traffic only on systems and networks you own or have written permission to analyze.

What is GraphQL Voyager?

GraphQL Voyager visualizes GraphQL schemas you are allowed to view.

Threat-model GraphQL APIs by seeing types/relations.

Official website: GraphQL Voyager · Documentation

When do you use it?

  • You need Visualize GraphQL schemas (use on schemas you are allowed to view).
  • You are following a CYNARKS lab or authorized engagement that calls for GraphQL Voyager.
  • You already tried simpler checks and need this tool’s deeper capability.

Who uses it?

  • AppSec engineers
  • Bug bounty hunters (in-scope)
  • Penetration testers

How do you use it? (typical flow)

  1. Install GraphQL Voyager using the steps below (prefer Kali package or official installer).
  2. Confirm you have authorization for the target (lab VM, own system, or written scope).
  3. Run --help / man (or the Help section) to see current flags for your version.
  4. Start with a safe example from Basic commands against localhost or an authorized lab target.
  5. Record what you ran, what you observed, and any follow-up (filter, report, remediation).

Help & manual (like man / --help)

Every serious tool has a built-in way to look up flags. Learn these first so you are not stuck memorizing every option.

  1. 1. Repo

    https://github.com/graphql-kit/graphql-voyager

Kali Linux

npm/web tool — not a classic Kali pentest binary.

1. Installation

OSInstallation
Kali Linuxnpm/web tool — not a classic Kali pentest binary.
Webnpm graphql-voyager or hosted demo

2. Basic commands

  1. 1. Map types/fields for threat modeling

    Load schema SDL

    Map types/fields for threat modeling

  2. 2. Show help

    Load --help

    List flags for your installed version (same habit as man/--help).

  3. 3. Short help

    Load -h

    Alternate help flag when supported.

5. Useful features

  • Schema visualization

6. Practical examples

  1. Example 1: Map types/fields for threat modeling

    Load schema SDL

    Map types/fields for threat modeling

  2. Example 2: Show help

    Load --help

    List flags for your installed version (same habit as man/--help).

  3. Example 3: Short help

    Load -h

    Alternate help flag when supported.

7. Important notes

  • Schema maps aid AppSec reviews — not an attack tool by itself.
  • Authorized targets only — labs, systems you own, or written permission.
  • Prefer reading --help / man / official docs for your installed version; flags change over time.

Related course: web application security · bug bounty hunting · Commands: /commands#burp