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qbittorrent-api

Apps & Automation
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qBittorrent WebUI API reference covering authentication, sync, transfer, torrent, RSS, and search endpoints for qBittorrent 5.0+.

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Source SKILL.md: https://github.com/tympanix/Electorrent/blob/HEAD/.github/skills/qbittorrent-api/SKILL.md

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Skill: qBittorrent API

Purpose

Use this skill when you need to integrate with qBittorrent's WebUI API.

Protocol

  • Base path: /api/v2
  • Reads usually use GET; mutations use POST
  • Wrong method returns 405 Method Not Allowed on modern servers
  • All routes require authentication except /api/v2/auth/login

Authentication

qBittorrent uses cookie-based auth.

  • POST /api/v2/auth/login
    • form params: username, password
    • success returns 200 and sets SID cookie
    • failed-rate-limit ban returns 403
  • POST /api/v2/auth/logout

Send Referer or Origin matching the request host/port.

Common route groups

GroupBaseNotes
Auth/api/v2/auth/*Login/logout
Application/api/v2/app/*Version, preferences, cookies, save path
Log/api/v2/log/*Main log and peer log
Sync/api/v2/sync/*Incremental state updates
Transfer/api/v2/transfer/*Global rates and limits
Torrents/api/v2/torrents/*List, inspect, mutate, files, categories, tags
RSS/api/v2/rss/*Feed and rule management
Search/api/v2/search/*Search jobs and plugins

Most important endpoints

Application

  • GET /app/version
  • GET /app/webapiVersion
  • GET /app/buildInfo
  • GET /app/preferences
  • POST /app/setPreferences
    • form/json param: json={...}
  • GET /app/defaultSavePath
  • GET /app/cookies
  • POST /app/setCookies

Sync

  • GET /sync/maindata?rid=<rid>
    • returns rid, full_update, torrents, torrents_removed, categories, categories_removed, tags, tags_removed, server_state
  • GET /sync/torrentPeers?hash=<hash>&rid=<rid>

Use sync/maindata for efficient polling instead of repeatedly calling full torrent list endpoints.

Transfer

  • GET /transfer/info
  • GET /transfer/speedLimitsMode
  • POST /transfer/toggleSpeedLimitsMode
  • GET /transfer/downloadLimit
  • POST /transfer/setDownloadLimit
    • param: limit bytes/sec
  • GET /transfer/uploadLimit
  • POST /transfer/setUploadLimit
    • param: limit bytes/sec
  • POST /transfer/banPeers
    • param: peers=host:port|host:port

Torrent listing and inspection

  • GET /torrents/info
    • filters: filter, category, tag, sort, reverse, limit, offset, hashes
  • GET /torrents/properties?hash=<hash>
  • GET /torrents/trackers?hash=<hash>
  • GET /torrents/webseeds?hash=<hash>
  • GET /torrents/files?hash=<hash>
  • GET /torrents/pieceStates?hash=<hash>
  • GET /torrents/pieceHashes?hash=<hash>

Important torrents/info response fields include state, progress, rates, ETA, save path, category, tags, tracker, queue position, availability, and content sizes.

Torrent lifecycle and mutation

  • POST /torrents/pause
  • POST /torrents/resume
  • POST /torrents/delete
    • params: hashes, deleteFiles
  • POST /torrents/recheck
  • POST /torrents/reannounce
  • POST /torrents/add
    • multipart fields:
      • urls
      • torrents (repeatable file part)
      • optional savepath, category, tags, skip_checking, paused, root_folder, rename, upLimit, dlLimit, ratioLimit, seedingTimeLimit, autoTMM, sequentialDownload, firstLastPiecePrio
  • POST /torrents/addTrackers
  • POST /torrents/editTracker
  • POST /torrents/removeTrackers
  • POST /torrents/addPeers

Priority and per-file control

  • POST /torrents/increasePrio
  • POST /torrents/decreasePrio
  • POST /torrents/topPrio
  • POST /torrents/bottomPrio
  • POST /torrents/filePrio
    • params: hash, id, priority
    • use index from /torrents/files when available

Limits, location, and naming

  • POST /torrents/downloadLimit
  • POST /torrents/setDownloadLimit
  • POST /torrents/setShareLimits
  • POST /torrents/uploadLimit
  • POST /torrents/setUploadLimit
  • POST /torrents/setLocation
  • POST /torrents/rename
  • POST /torrents/setCategory
  • GET /torrents/categories
  • POST /torrents/createCategory
  • POST /torrents/editCategory
  • POST /torrents/removeCategories
  • POST /torrents/addTags
  • POST /torrents/removeTags
  • GET /torrents/tags
  • POST /torrents/createTags
  • POST /torrents/deleteTags
  • POST /torrents/setAutoManagement
  • POST /torrents/toggleSequentialDownload
  • POST /torrents/toggleFirstLastPiecePrio
  • POST /torrents/setForceStart
  • POST /torrents/setSuperSeeding
  • POST /torrents/renameFile
  • POST /torrents/renameFolder

RSS and search

RSS is under /api/v2/rss/* and search is under /api/v2/search/*.

Important endpoints:

  • RSS: addFolder, addFeed, removeItem, moveItem, items, markAsRead, refreshItem, rule CRUD, articles
  • Search: start, stop, status, results, delete, plugin list/install/uninstall/enable/update`

Electorrent usage

Electorrent primarily depends on:

  • auth login/logout
  • sync/maindata
  • torrents/add
  • torrents/files + torrents/filePrio
  • pause/resume/recheck/delete
  • priority operations
  • category management
  • sequential download and first/last piece priority toggles

References