io.github.caelum29/calibre-mcp

Calibre ebook library server: search, read content, curate metadata, semantic search, gated writes.

What does this entry provide?

io.github.caelum29/calibre-mcp is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 78/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding io.github.caelum29/calibre-mcp to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 78/100
Install method: npm
Repo: caelum29/calibre-mcp
Repo updated: Oct 23, 2026

Install command

npx -y calibre-mcp@0.9.0

Install method: npm

Review the upstream source before running this command.

GitHub project

Quality

Repo stars

Repo updated

Oct 23, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.

MCP manifest

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-10-23T20:33:29.307673Z",
      "publishedAt": "2026-10-23T20:33:29.307673Z",
      "statusChangedAt": "2026-10-23T20:33:29.307673Z"
    }
  },
  "server": {
    "name": "io.github.caelum29/calibre-mcp",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "0.9.0",
    "packages": [
      {
        "version": "0.9.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "calibre-mcp",
        "registryType": "npm",
        "environmentVariables": [
          {
            "name": "CALIBRE_MCP_SERVER_URL",
            "format": "string",
            "description": "Calibre Content Server base URL (default http://localhost:8080)"
          },
          {
            "name": "CALIBRE_MCP_LIBRARY",
            "format": "string",
            "description": "Library name; empty = auto-detect the server's default library"
          },
          {
            "name": "CALIBRE_MCP_ENABLE_WRITE",
            "format": "boolean",
            "description": "Set to 1 to enable the write tools (update/bulk-update/add/remove); off by default"
          },
          {
            "name": "CALIBRE_MCP_CALIBREDB_PATH",
            "format": "filepath",
            "description": "Path to the calibredb binary; empty = auto-discover the standard install location"
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/caelum29/calibre-mcp",
      "source": "github"
    },
    "description": "Calibre ebook library server: search, read content, curate metadata, semantic search, gated writes."
  }
}

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