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{
  "mcpServers": {
    "calibre-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ]
    }
  }
}

claude mcp add calibre-mcp -- npx -y [email protected]

[mcp_servers.calibre-mcp]
command = "npx"
args = ["-y", "[email protected]"]

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "calibre-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "[email protected]"
      ],
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "calibre-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ]
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=calibre-mcp&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsImNhbGlicmUtbWNwQDAuNy40Il19"
}

{
  "servers": {
    "calibre-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ]
    }
  }
}

{
  "mcpServers": {
    "calibre-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ]
    }
  }
}

extensions:
  "calibre-mcp":
    enabled: true
    name: "calibre-mcp"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "[email protected]"
    timeout: 300

This is a local package: the command runs on your machine.

Quality – / 100not scored

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygienen/a · weight 30

n/a
tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool list unknown

dependencies33 · weight 15

fail
deps.known_vulns8 advisories to act on (malicious, or rated high or critical with a fix available): GHSA-7q85-xj36-vmfc in [email protected] (indirect, fixed in 0.6.1), GHSA-8238-w5pm-2374 in [email protected] (indirect, fixed in 0.6.1), GHSA-j5f4-cc29-5x44 in [email protected] (indirect, fixed in 0.6.1), ...; 4 more of lower severity or without a fix
fail
deps.mcp_sdk_version@modelcontextprotocol/sdk 1.29.0 has 1 known advisory (GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/sdk to 1.31.0 or later
pass
deps.resolvable[email protected] resolved: 185 packages

Tool list unknown · checked 2026-10-20 13:17 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 87 / 100

provenance80

livenessn/a

freshness85

hygiene100

+repository +namespace-matches-repo ~liveness-unmeasured ~updated-60d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

[email protected] npm184 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 1.29.0 · advisories checked 2026-10-19

advisory	severity	package	fixed in
GHSA-6qxp-vccf-f47hMCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server	high	`@modelcontextprotocol/[email protected]`MCP SDK, direct	fixed in `1.31.0`
GHSA-7q85-xj36-vmfcadm-zip: Uncontrolled memory allocation via the declared uncompressed size (DoS)	high	`[email protected]`indirect	fixed in `0.6.1`
GHSA-8238-w5pm-2374adm-zip: Unhandled error event in async DEFLATE decompression crashes Node.js process (DoS)	high	`[email protected]`indirect	fixed in `0.6.1`
GHSA-j5f4-cc29-5x44adm-zip extraction preserves SUID/SGID bits from untrusted ZIPs -> local privilege escalation	high	`[email protected]`indirect	fixed in `0.6.1`
GHSA-rcw4-f5rp-g42vadm-zip: Decompression-bomb protection (fix for CVE-2026-39244) can be bypassed by declaring uncompressed size as 0	high	`[email protected]`indirect	fixed in `0.6.1`
GHSA-xcpc-8h2w-3j85adm-zip: Crafted ZIP file triggers 4GB memory allocation	high	`[email protected]`indirect	fixed in `0.6.0`
GHSA-f88m-g3jw-g9cjsharp inherited vulnerabilities in libvips: CVE-2026-33327, CVE-2026-33328, CVE-2026-35590, CVE-2026-35591	high	`[email protected]`indirect	fixed in `0.35.0`
GHSA-rgj7-g3m4-5g8csharp: Vulnerabilities in libheif: GHSA-g89c-p67h-r497 and GHSA-2jg2-4ch7-h545	high	`[email protected]`indirect	fixed in `0.35.4`
GHSA-wq5f-xc86-pv6wsharp : Vulnerability in librsvg dependency CVE-2026-96889	high	`[email protected]`indirect	fixed in `0.35.5`
GHSA-c6fg-446q-cg94adm-zip: getDataAsync() bypasses the maxOutputLength size guard enforced by the synchronous getData() path	moderate	`[email protected]`indirect	fixed in `0.6.1`

3 more advisories in the dependencies endpoint.

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

package	registry	version	runtime	secrets
`calibre-mcp`	npm	0.7.4	–

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.caelum29/calibre-mcp",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.7.4",
  "packages": [
    {
      "version": "0.7.4",
      "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."
}