Lacuna Music
REMOTE · WWW.LACUNA.FM · 2 COMPONENTS · SCANNED AUG 12
Generate AI music via the Lacuna Music API from MCP clients like Claude Desktop & Code.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score →
Endpoint Security97
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token. View diagnostics → Pass
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability82
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 410 tokens (~136/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management7
- Stability observed for 2 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
remote · www.lacuna.fm
claude mcp add --transport http joylink-ltd-lacuna-mcp https://www.lacuna.fm/mcp
[mcp_servers.joylink-ltd-lacuna-mcp] url = "https://www.lacuna.fm/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"joylink-ltd-lacuna-mcp": {
"type": "remote",
"url": "https://www.lacuna.fm/mcp",
"enabled": true
}
}
} openclaw mcp add joylink-ltd-lacuna-mcp --url https://www.lacuna.fm/mcp --transport streamable-http
mcp_servers:
joylink-ltd-lacuna-mcp:
url: "https://www.lacuna.fm/mcp" {
"mcpServers": {
"joylink-ltd-lacuna-mcp": {
"type": "http",
"url": "https://www.lacuna.fm/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 11 Aug 26 +2
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 10 Aug 26 77
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 12 Aug 2026 · Probed https://www.lacuna.fm/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=lacuna.fm | CN=YE2,O=Let's Encrypt,C=US | 6 Aug 2026 | 4 Nov 2026 | ECDSA 256 | ECDSA-SHA384 | 5eddea59085dccda8f05090bf16c8f6022f |
| SANs: *.lacuna.fm, lacuna.fm | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
DNSSEC insecure
Validation of www.lacuna.fm. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| fm. | present | 26186, 60226 | 8, 8 | Verified |
| lacuna.fm. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Enforced and verified
The endpoint asked for a token and published valid RFC 9728 metadata describing how to get one.
| Result | Enforced and verified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
WWW-Authenticate challenge Bearer realm="lacuna", resource_metadata="https://www.lacuna.fm/.well-known/oauth-protected-resource", error="invalid_token", error_description="Invalid API key"
Bearer realm="lacuna", resource_metadata="https://www.lacuna.fm/.well-known/oauth-protected-resource", error="invalid_token", error_description="Invalid API key"| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains; preload |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(self), geolocation=() |
Protected resource metadata
| Document | https://www.lacuna.fm/.well-known/oauth-protected-resource |
|---|---|
| Retrieved | Yes |
| Resource | https://www.lacuna.fm |
| Authorisation server | https://www.lacuna.fm |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://www.lacuna.fm/mcp | Verified | 200 | |
| http (plaintext) | http://www.lacuna.fm/mcp | HTTPS enforced | 301 | https://www.lacuna.fm/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
generate_music Generate music ~229
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.
| Name | Type | Req | Description |
|---|---|---|---|
| audio_weight | number | – | Audio reference weight 0–1 (aether only). |
| instrumental | boolean | – | Generate an instrumental track (no lyrics). Defaults to false. |
| lyrics | string | – | Lyrics in plain text. Required unless `instrumental` is true. |
| model | string | – | Generation model. Defaults to `aether`. Call `list_models` for what each one covers. |
| negative_tags | string | – | Negative style tags to avoid (aether only). |
| style | string | yes | Style description, e.g. "pop, female vocal, 120 bpm, energetic". |
| style_weight | number | – | Style weight 0–1 (aether only). |
| title | string | yes | Track title. |
| vocal_gender | string | – | Lead vocal gender hint (aether only). |
| weirdness_constraint | number | – | Weirdness constraint 0–1 (aether only). |
No output schema declared.
No examples provided.
get_generation Get generation ~54
Retrieve the current state of a music generation task by id. Status is `pending`, `ready`, or `failed`; audio URLs appear on `ready`.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Generation task id, returned by generate_music. |
No output schema declared.
No examples provided.
list_models List models ~33
List the music models available through the API, with their credit cost per task, tracks produced per task, and language coverage.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.