Schema | opds-mcp

opds-mcp

Describes the environment variables required to run the server.

Name	Required	Description
`OPDS_BASE_URL`	No	The catalog URL used when a tool call doesn't pass its own url. This is the recommended way to point the server at a specific library.
`OPDS_PASSWORD`	No	Used as a fallback for HTTP Basic Auth when a tool call doesn't pass its own credentials.
`OPDS_USERNAME`	No	Used as a fallback for HTTP Basic Auth when a tool call doesn't pass its own credentials.
`OPDS_DOWNLOAD_DIR`	No	Where opds_download saves files; defaults to a directory under the OS temp folder.

Features and capabilities supported by this server

Capability	Details
`tools`	{ "listChanged": true }

Functions exposed to the LLM to take actions

Name	Description
opds_browseB	Fetches an OPDS catalog document (feed, navigation, or acquisition list; OPDS 1.x Atom/XML or OPDS 2.0 JSON) and returns its navigation links (search, next/prev, subsections) and entries (books/publications) with their acquisition (download) and cover image links.
opds_searchA	Searches an OPDS catalog. Pass either the catalog's root/feed URL (its OpenSearch description will be discovered via the feed's rel="search" link) or an OpenSearchDescription document URL directly, plus a free-text query. Returns matching entries the same way opds_browse does.
opds_get_entryA	Fetches a single OPDS entry document (a per-publication Atom entry or OPDS 2.0 publication), typically the URL found in an entry's rel="alternate" link, and returns its full details including acquisition links.
opds_downloadA	Downloads the file behind an OPDS acquisition link (as returned in the `acquisitions` array of opds_browse/opds_search/opds_get_entry) to a local directory and returns the saved file path. Defaults to a directory under the OS temp folder (/tmp/opds-mcp-downloads); configure OPDS_DOWNLOAD_DIR to persist elsewhere.

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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