Ableton MCP Extended (zabolotniydj/ableton-mcp-fixed) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 90 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Caution
74/100
10 days ago

Ableton MCP Extended

An MCP server that enables natural language control of Ableton Live, including session/transport, track management, MIDI clips and notes, devices, automation, browser integration, and audio generation via ElevenLabs.

→ zabolotniydj/ableton-mcp-fixed· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

zabolotniydj

Source: Glama

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
🚨
Secret credentials may flow to a network call
2 flows detected: ELEVENLABS_API_KEY. We can’t prove the destination matches the brand the credential belongs to.
⚠️
Tool descriptions don’t match what handlers do
2 tools describe read intent but their handlers mutate — text_to_speech (line 114: with open(output_path / output_file_name, "wb") as f:); text_to_sound_effects (line 208: with open(output_path / output_file_name, "wb") as f:)
🔐
You'll be asked for 1 credential: ELEVENLABS_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
🔐 secretELEVENLABS_API_KEY
configELEVENLABS_MCP_BASE_PATH
configXDG_CONFIG_HOME
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

90/90 tools missing one or more hints — get_session_info (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_track_info (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); create_midi_track (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +87 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Descriptions match behaviour

2 tools describe read intent but their handlers mutate — text_to_speech (line 114: with open(output_path / output_file_name, "wb") as f:); text_to_sound_effects (line 208: with open(output_path / output_file_name, "wb") as f:)

Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.

Tool test coverage

31/90 tools referenced in tests (34%)

Write tests that reference each tool by name so every tool has at least one test.

Secrets stay with their owner

2 secrets sent to a request target we could not resolve (ELEVENLABS_API_KEY → dynamic, ELEVENLABS_API_KEY → dynamic) — often a configured endpoint, not necessarily third-party

Audit where credentials are sent. A NOTION_TOKEN should only reach api.notion.com — never a third-party host.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
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commit: a1d79d6468a6ff66a898c8f914e31be84c326920
code hash: 59d141cb31073037b4df14a57bfdef1463451b4cc2832342ff7566f1559a5753
verified: 9/2/2026, 6:06:38 PM
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