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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "lacuna-mcp": {
      "type": "http",
      "url": "https://www.lacuna.fm/mcp"
    }
  }
}

claude mcp add --transport http lacuna-mcp https://www.lacuna.fm/mcp

[mcp_servers.lacuna-mcp]
url = "https://www.lacuna.fm/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "lacuna-mcp": {
      "type": "remote",
      "url": "https://www.lacuna.fm/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "lacuna-mcp": {
      "type": "http",
      "url": "https://www.lacuna.fm/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=lacuna-mcp&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vd3d3LmxhY3VuYS5mbS9tY3AifQ%3D%3D"
}

{
  "servers": {
    "lacuna-mcp": {
      "type": "http",
      "url": "https://www.lacuna.fm/mcp"
    }
  }
}

{
  "mcpServers": {
    "lacuna-mcp": {
      "httpUrl": "https://www.lacuna.fm/mcp"
    }
  }
}

extensions:
  "lacuna-mcp":
    enabled: true
    name: "lacuna-mcp"
    type: streamable_http
    uri: "https://www.lacuna.fm/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

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 hygiene86 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations3 of 3 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: generate_music (idempotentHint); get_generation (idempotentHint); list_models (idempotentHint)
pass
tools.token_costabout 531 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependencies50 · weight 15

warn
deps.known_vulns1 advisory of lower severity or without a published fix: GHSA-5r4p-p66f-jhc7 in [email protected] (indirect, fixed in 4.13.11)
fail
deps.mcp_sdk_version@modelcontextprotocol/sdk 1.30.1 has 3 known advisories (GHSA-22jm-h49p-29qw, GHSA-6prh-2h8m-c8cw, GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/sdk to 1.32.0 or later
pass
deps.resolvable[email protected] resolved: 99 packages

3 tools, about 531 tokens to load them all · tool set af47b6590af2 · checked 2026-10-20 20:14 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 94 / 100

provenance90

liveness100

freshness85

hygiene100

+repository +namespace-matches-repo +website +reachable +uptime-100% ~updated-72d-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] npm98 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 1.30.1 · advisories checked 2026-10-20

advisory	severity	package	fixed in
GHSA-22jm-h49p-29qwMCP TypeScript SDK: Experimental tasks were not tied to the session that created them	high	`@modelcontextprotocol/[email protected]`MCP SDK, direct	fixed in `1.32.0`
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-6prh-2h8m-c8cwMCP TypeScript client SDK: HTTP client transports and OAuth requests followed cross-origin redirects and re-sent custom headers and request bodies	moderate	`@modelcontextprotocol/[email protected]`MCP SDK, direct	fixed in `1.32.0`
GHSA-5r4p-p66f-jhc7Hono: `serveStatic` decodes the request path a second time, leading to bypass of middleware on static paths	moderate	`[email protected]`indirect	fixed in `4.13.11`

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

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://www.lacuna.fm/mcp` streamable-http	none	yes	100%	352 ms	2025-06-18	2026-10-20

package	registry	version	runtime	secrets
`lacuna-mcp`	npm	0.3.4	–	`LACUNA_API_KEY`

Tools (3)

`generate_music`	Create an AI music generation task on Lacuna. Returns immediately with a `pending` task; poll `get_generation` to retrieve the finished tracks and their audio URLs.
`get_generation`read-only	Retrieve the current state of a music generation task by id. Status is `pending`, `ready`, or `failed`; audio URLs appear on `ready`.
`list_models`read-only	List the music models available through the API, with their credit cost per task, tracks produced per task, and language coverage.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.JOYLINK-LTD/lacuna-mcp",
  "icons": [
    {
      "src": "https://www.lacuna.fm/favicon-256x256.png",
      "sizes": [
        "256x256"
      ],
      "mimeType": "image/png"
    }
  ],
  "title": "Lacuna Music",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://www.lacuna.fm/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.3.4",
  "packages": [
    {
      "version": "0.3.4",
      "transport": {
        "type": "stdio"
      },
      "identifier": "lacuna-mcp",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "LACUNA_API_KEY",
          "format": "string",
          "isSecret": true,
          "isRequired": true,
          "description": "Lacuna API key from https://www.lacuna.fm/profile/api"
        },
        {
          "name": "LACUNA_BASE_URL",
          "format": "string",
          "description": "Override the API base URL (optional)."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/JOYLINK-LTD/lacuna-toolkit",
    "source": "github",
    "subfolder": "packages/mcp"
  },
  "websiteUrl": "https://www.lacuna.fm",
  "description": "Generate AI music via the Lacuna Music API from MCP clients like Claude Desktop & Code."
}