API Docs

danger

🔥 🔥 The API, and all of Maintainerr for that matter, does not have an authentication method. There are certain API calls, that if you make your instance public facing, will expose your entire settings configuration. This could include all of your service's API keys. Proceed with extreme caution if you choose to expose Maintainerr to the public. 🔥 🔥

API endpoints

info

The Docusaurus site does not yet embed the generated Swagger reference. Use the live Swagger UI in your Maintainerr instance at http://<maintainerr_url>/api/swagger for the current API surface, including newer modules such as overlays and storage metrics.

The repository also carries a bundled OpenAPI YAML at static/openapi-spec/maintainerr_api_specs.yaml, but the live Swagger UI should still be treated as the source of truth for the running instance.

Notable current endpoints

These are some of the newer user-facing API groups that are relevant to the current docs set.

Health

Maintainerr exposes lightweight health endpoints under /api/health (prefixed with BASE_PATH when set) for orchestration probes and uptime monitoring.

Endpoint	Purpose
GET /api/health/live	Liveness probe; returns 200 while the process is running and does not touch the database
GET /api/health/ready	Readiness probe; runs a database SELECT 1 check and returns 200 or 503
GET /api/health	Convenience alias that mirrors /api/health/ready

GET /api/health/live returns a lightweight envelope such as:

{
  "status": "ok",
  "uptimeSeconds": 1234,
  "timestamp": "2026-06-05T12:00:00.000Z"
}

GET /api/health/ready and GET /api/health include database status:

// 200
{ "status": "ok", "uptimeSeconds": 1234, "database": "ok", "timestamp": "..." }
// 503
{ "status": "degraded", "uptimeSeconds": 1234, "database": "unreachable", "timestamp": "..." }

• Only the database gates readiness. External integrations such as Plex/Jellyfin, the *arr stack, Seerr, Tautulli, and Streamystats are intentionally excluded so transient upstream outages do not take Maintainerr out of rotation.
• The bundled Docker image ships a HEALTHCHECK that calls /api/health/ready and honours both BASE_PATH and UI_PORT.
• For Kubernetes, use /api/health/live as the livenessProbe and /api/health/ready as the readinessProbe. If BASE_PATH is set, prefix both probe paths accordingly.

Collections

Endpoint	Purpose
GET /api/collections/overlay-data	Returns collections with full media membership for overlay consumers, including the Calendar page
POST /api/collections/media/handle	Run the configured collection action immediately for one item from the collection detail modal
GET /api/collections/:id/poster	Return the stored custom collection poster as image/jpeg, or 404 when none exists
POST /api/collections/:id/poster	Upload a custom collection poster with multipart field poster; returns { pushed, attempted }
DELETE /api/collections/:id/poster	Clear the stored poster and return { cleared, refreshRequested }

Metadata

Endpoint	Purpose
GET /api/metadata/backdrop/:type	Resolve a backdrop image for a movie or show from the configured metadata providers
GET /api/metadata/image/:type	Resolve a poster image for a movie or show from the configured metadata providers
GET /api/settings/tmdb	Read the saved TMDB API key state
POST /api/settings/tmdb	Save a TMDB API key
DELETE /api/settings/tmdb	Remove the saved TMDB API key
GET /api/settings/tvdb	Read the saved TVDB API key state
POST /api/settings/tvdb	Save a TVDB API key
DELETE /api/settings/tvdb	Remove the saved TVDB API key
GET /api/settings/metadata-provider	Read which metadata provider is currently primary
POST /api/settings/metadata-provider	Change the primary metadata provider
POST /api/settings/metadata/refresh/:provider	Clear cached metadata for TMDB or TVDB and queue a media-server refresh pass

Media server settings

Endpoint	Purpose
GET /api/settings/emby	Read the saved Emby URL, API key, and selected admin user
POST /api/settings/emby/test	Test an Emby URL and API key, and return available admin users
POST /api/settings/emby	Save Emby connection settings
DELETE /api/settings/emby	Remove the saved Emby connection settings
POST /api/settings/emby/login	Authenticate with an Emby admin username/password and return an API key plus admin-user choices

Download Client

Endpoint	Purpose
GET /api/settings/download-client	Read the saved qBittorrent connection and cleanup options
POST /api/settings/download-client	Save qBittorrent connection and cleanup options
DELETE /api/settings/download-client	Remove the saved download-client connection settings
POST /api/settings/test/download-client	Test the qBittorrent Web UI URL, credentials, and cleanup options before saving

Streamystats (Jellyfin only)

Endpoint	Purpose
GET /api/settings/streamystats	Read the saved Streamystats base URL
POST /api/settings/test/streamystats	Test a Streamystats URL using the currently configured Jellyfin API key
POST /api/settings/streamystats	Save the Streamystats base URL
DELETE /api/settings/streamystats	Remove the saved Streamystats base URL
GET /api/streamystats/info	Return the configured Streamystats URL plus the resolved Jellyfin server id used for deep links
GET /api/streamystats/items/:itemId	Return Streamystats watch-history totals, per-user stats, and episode progress for one Jellyfin item

Overlays

Endpoint	Purpose
GET /api/overlays/settings	Read global overlay settings
PUT /api/overlays/settings	Update global overlay settings
GET /api/overlays/sections	List media server library sections used by the template preview picker
GET /api/overlays/random-item	Get a random media item for poster-template preview
GET /api/overlays/random-episode	Get a random episode for title-card preview
GET /api/overlays/poster	Proxy media artwork for template preview
GET /api/overlays/status	Read the latest overlay processing status
POST /api/overlays/process	Run overlay processing for all eligible collections
POST /api/overlays/process/:collectionId	Run overlay processing for one collection
POST /api/overlays/revert/:collectionId	Revert overlays for one collection
DELETE /api/overlays/reset	Revert all overlays
GET /api/overlays/fonts	List available fonts
GET /api/overlays/fonts/:name	Read a bundled or uploaded font file
POST /api/overlays/fonts	Upload a .ttf, .otf, or .woff font
GET /api/overlays/images	List uploaded overlay image assets
GET /api/overlays/images/:name	Read an uploaded overlay image asset
POST /api/overlays/images	Upload a .png, .jpg/.jpeg, or .webp image for template image elements
DELETE /api/overlays/images/:name	Delete an uploaded overlay image asset
GET /api/overlays/templates	List overlay templates
GET /api/overlays/templates/:id	Fetch one template
POST /api/overlays/templates	Create a template
PUT /api/overlays/templates/:id	Update a template
DELETE /api/overlays/templates/:id	Delete a non-preset template
POST /api/overlays/templates/:id/duplicate	Clone a template into an editable copy
POST /api/overlays/templates/:id/default	Set a template as the default for its mode
POST /api/overlays/templates/:id/export	Export a template as JSON
POST /api/overlays/templates/import	Import a template from JSON
POST /api/overlays/templates/:id/preview	Render a server-side preview of a template on real artwork

POST /api/overlays/process accepts an optional { force: true } body to reapply overlays even when the saved day-count state is already current. Its run summary now always reports processed, reverted, skipped, and errors.

POST /api/overlays/process and DELETE /api/overlays/reset both return 409 Conflict if another overlay-processing run is already active.

Storage Metrics

Endpoint	Purpose
GET /api/storage-metrics	Return aggregated disk usage, instance health, collection-size summaries, and cumulative cleanup totals
GET /api/storage-metrics/library-sizes	Compute per-library sizes on demand; potentially slow on large libraries

GET /api/storage-metrics now includes cleanupTotals counters for itemsHandled, moviesHandled, showsHandled, seasonsHandled, and episodesHandled, plus reclaimed-byte totals in bytesHandled, movieBytesHandled, showBytesHandled, seasonBytesHandled, and episodeBytesHandled.

The same response also includes collectionSummary type breakdowns for movieSizeBytes, showSizeBytes, seasonSizeBytes, episodeSizeBytes, and per-type reclaimable collection counts such as reclaimableMovieCount.

Collection payloads also now carry an optional mediaServerSort key. It stores the collection's saved media-server sort order as {field}.{order} (for example deleteSoonest.asc) when the connected server supports collection sorting.