# s0md3v/Arjun

HTTP parameter discovery suite.

Repository: https://github.com/s0md3v/Arjun
Canonical: https://ross.abutalabs.com/products/arjun
Language: Python
License: AGPL-3.0
License Family: copyleft
Topics: api-testing, api-fuzzer, api-fuzzing, recon, parameter-discovery
Last push: 2025-02-20T10:52:16+00:00

## Health v2 (maintenance only)
Score: 26/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 7, release rhythm 8, longevity 100
- inputs: {"age_days": 3107, "days_push": 559, "days_rel": 668, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6385, forks 862 (observed 2026-08-28T04:09:42.974658+00:00)

## What it is
Arjun is a Python command-line tool that discovers hidden HTTP query parameters for URL endpoints using a large dictionary of over 25,000 parameter names. It supports GET/POST/JSON/XML requests, handles rate limits automatically, and can export results to BurpSuite, text, or JSON.

## Use cases
- find hidden query parameters on an api endpoint
- discover parameters for bug bounty recon
- fuzz http endpoints for valid parameter names
- extract parameters from javascript files passively
- import targets from burp suite and export findings

## When to choose
- you need fast parameter discovery with a large built-in wordlist
- you want automatic rate-limit and timeout handling during scanning
- you need BurpSuite integration for import/export in a pentest workflow

## When to avoid
- you need full web application vulnerability scanning rather than parameter discovery
- you require a GUI tool instead of a command-line interface
- your targets require authenticated sessions with complex flows beyond custom headers

## Facets
- artifact type: cli-tool
- maturity: active
- function: security, http-client, web-scraping, cli
- domain: security, penetration-testing, web-development, apis
- platform: python, cli, windows
- tags: parameter-discovery, bug-bounty, recon, api-fuzzing, pentesting, linux, macos

## Member repositories
- s0md3v/Arjun (main) score 26

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:42.974658+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:45:04.113561+00:00, confidence not recorded.
  - readme: https://github.com/s0md3v/Arjun (fetched 2026-08-28T04:09:42.974658+00:00, sha 4d776934ac8b)
  - registry_pypi: https://pypi.org/pypi/arjun/json (fetched 2026-08-29T08:41:58.593254+00:00, sha 59a7ea80fa6b)
- Data as of 2026-08-30T08:39:29.467469+00:00.