qbittorrent

name: qbittorrent description: Manage qBittorrent Web UI end-to-end (add, monitor, control torrents)

Credential Check

Before using this skill, verify credentials are configured:

source .env && echo "QB URL: $QB_URL" && echo "User: $QB_USER"

If this shows nothing or errors, guide the user through First-Time Setup below.

Environment Setup

Credentials are stored in .env (gitignored):

QB_URL=http://localhost:8080
QB_USER=admin
QB_PASS=your-password

Torrent Sources (Vanilla)

The tracked, portable template is .opencode/skill/qbittorrent/torrent-sources.example.json.

During setup, copy it to .opencode/skill/qbittorrent/torrent-sources.json (gitignored) and customize it for your environment:

cp .opencode/skill/qbittorrent/torrent-sources.example.json .opencode/skill/qbittorrent/torrent-sources.json

List the configured sources:

jq -r '.sources[] | "\(.name)\t\(.url)\(.searchPath)"' .opencode/skill/qbittorrent/torrent-sources.json

Quick Usage

End-to-end flow

1. Pick a source from .opencode/skill/qbittorrent/torrent-sources.json (create it from the example if missing) and grab a magnet link or .torrent file from the official page.
2. Login to the Web API (stores a SID cookie in /tmp/qb.txt).
3. Add the torrent (magnet or .torrent).
4. Monitor progress/state until complete.

Login and store session

source .env && curl -s -c /tmp/qb.txt -b /tmp/qb.txt \
  "$QB_URL/api/v2/auth/login" \
  -d "username=$QB_USER&password=$QB_PASS"

Add a magnet link

# IMPORTANT: Must use -F (multipart/form-data), NOT -d!
curl -s -c /tmp/qb.txt -b /tmp/qb.txt \
  "$QB_URL/api/v2/torrents/add" \
  -F "urls=magnet:?xt=urn:btih:HASH&dn=NAME"

Add a .torrent file

curl -s -c /tmp/qb.txt -b /tmp/qb.txt \
  "$QB_URL/api/v2/torrents/add" \
  -F "torrents=@/path/to/file.torrent"

Response meanings:

• Ok. = Successfully added
• Fails. = Torrent already exists (duplicate) - NOT an error!

Add with save path and category

curl -s -c /tmp/qb.txt -b /tmp/qb.txt \
  "$QB_URL/api/v2/torrents/add" \
  -F "urls=MAGNET_LINK" \
  -F "savepath=/downloads/movies" \
  -F "category=movies"

List all torrents

curl -s -b /tmp/qb.txt "$QB_URL/api/v2/torrents/info"

Check torrent status by hash

curl -s -b /tmp/qb.txt "$QB_URL/api/v2/torrents/info?hashes=HASH_LOWERCASE"

Latest torrent + completion

curl -s -b /tmp/qb.txt "$QB_URL/api/v2/torrents/info" | jq -r '
  if length==0 then "No torrents"
  else (sort_by(.added_on) | last) as $t
  | "name=\($t.name)\nhash=\($t.hash)\nstate=\($t.state)\nprogress=\($t.progress)\nadded_on=\($t.added_on)\ncompletion_on=\($t.completion_on)\nsave_path=\($t.save_path)"
  end'

Rule of thumb: a torrent is finished when progress is 1 and state is uploading/stoppedUP/pausedUP.

One-liner: Login and add torrent

source .env && \
curl -s -c /tmp/qb.txt "$QB_URL/api/v2/auth/login" -d "username=$QB_USER&password=$QB_PASS" && \
curl -s -b /tmp/qb.txt "$QB_URL/api/v2/torrents/add" -F "urls=MAGNET_LINK_HERE"

Torrent States

Common Gotchas

• Must use -F not -d for adding torrents (multipart/form-data required)
• Fails. response = duplicate torrent, not an error
• Some endpoints (including /api/v2/app/version) may return 403 Forbidden until you authenticate and send the SID cookie
• Session cookie stored in /tmp/qb.txt - re-login if expired
• Hash must be lowercase when querying

Manage Torrents

Pause torrent

curl -s -b /tmp/qb.txt -X POST "$QB_URL/api/v2/torrents/pause" \
  -d "hashes=HASH"

Resume torrent

curl -s -b /tmp/qb.txt -X POST "$QB_URL/api/v2/torrents/resume" \
  -d "hashes=HASH"

Delete torrent (keep files)

curl -s -b /tmp/qb.txt -X POST "$QB_URL/api/v2/torrents/delete" \
  -d "hashes=HASH&deleteFiles=false"

Delete torrent and files

curl -s -b /tmp/qb.txt -X POST "$QB_URL/api/v2/torrents/delete" \
  -d "hashes=HASH&deleteFiles=true"

First-Time Setup (If Credentials Missing)

What you need from the user

1. Web UI URL - Default is http://localhost:8080
2. Username - Default is admin
3. Password - Set in qBittorrent preferences
4. Torrent sources config - Copy the example to a local config (gitignored)

cp .opencode/skill/qbittorrent/torrent-sources.example.json .opencode/skill/qbittorrent/torrent-sources.json

Step 1: Enable Web UI in qBittorrent

Tell the user:

1. Open qBittorrent
2. Go to Tools > Options > Web UI
3. Check "Web User Interface (Remote control)"
4. Set port (default 8080)
5. Set username and password
6. Click OK

Step 2: Add credentials to .env

cat >> .env << 'EOF'
# qBittorrent
QB_URL=http://localhost:8080
QB_USER=admin
QB_PASS=your-password-here
EOF

Step 3: Test it works

source .env && \
curl -s -c /tmp/qb.txt "$QB_URL/api/v2/auth/login" -d "username=$QB_USER&password=$QB_PASS" >/dev/null && \
curl -s -b /tmp/qb.txt "$QB_URL/api/v2/app/version"
# Should return version like "v5.1.2" (some setups return 403 until authenticated)

API Reference