Use Samplecut in ChatGPT and Claude — cut audio from a link in chat

What you are installing

One HTTPS MCP server, shared by both hosts:

• URL: https://api.samplecut.app/mcp
• Auth: No Authentication in ChatGPT, No sign-in in Claude — leave OAuth blank if the form offers it.
• Tool: cut_audio — extract + cut in one call; returns download_url, editor_url, and an expiry.
• Tool: get_transcript — captions when the platform provides them (YouTube-first in practice). Returns timestamped segments (start_sec/end_sec) plus flat text; available:false when none. No job_id — the host picks times, then calls cut_audio with the same URL.

Possession of the download id is the capability for the file. Links expire after about an hour and do not refresh when you open them.

Add Samplecut in Claude.ai

Fastest path: open the prefilled Claude install link. Claude opens the Add custom connector dialog with the name and https://api.samplecut.app/mcp already filled, shows a notice that the values came from an external link, and waits for you to confirm. Nothing is added until you approve.

The same URL, for copy-paste:

https://claude.ai/customize/connectors?modal=add-custom-connector&connectorName=Samplecut&connectorUrl=https%3A%2F%2Fapi.samplecut.app%2Fmcp

Manual path: Customize → Connectors → Add custom connector, paste the same MCP URL, leave auth empty (No sign-in), and add it. On Team or Enterprise, an Owner first registers the connector under Organization settings → Connectors → Add → Custom → Web; members then connect it from Customize.

Free plans get one custom connector — if that slot is already taken, remove the other connector or upgrade before adding Samplecut. Web and Claude Desktop are the primary surfaces; mobile connector install is still beta.

Add Samplecut in ChatGPT

ChatGPT has no official prefilled install link — paste by hand on the web app:

1. Open Settings → Security and login and turn on Developer mode.
2. Go to ChatGPT Plugins, select the + button, and create a developer-mode app.
3. Paste https://api.samplecut.app/mcp as the MCP server URL and choose No Authentication.
4. In a chat, open the tools / Developer menu and enable Samplecut for that conversation.

MCP apps are not available on the ChatGPT mobile apps — use ChatGPT on the web. There is no MCP connector support on the free ChatGPT tier.

ChatGPT plans and write tools — the conservative gate

Samplecut’s cut tool is a write action (it is not marked read-only). OpenAI’s docs currently disagree on who gets full MCP write tools:

• The Help Center limits full MCP write/modify tools to Business, Enterprise, or Edu workspaces, and describes Pro as read/fetch only in developer mode.
• The developer mode guide lists Plus and Pro among accounts that get all tools (read and write), subject to confirmation.

This guide follows the Help Center: plan on a Business, Enterprise, or Edu workspace if you need ChatGPT to call Samplecut. Plus and Pro may still let you add the connector — treat write-tool availability there as uncertain until OpenAI resolves the conflict. Claude’s custom-connector path does not have this write-tool split.

Ask for a cut in chat

Once the connector is enabled for the conversation, paste a link and ask plainly, for example:

• “Download the first 20 seconds of this YouTube URL as mp3.”
• “Download the full audio from this TikTok.”
• “Open this Instagram reel in Samplecut so I can tweak the end.”
• “Use get_transcript on this YouTube URL, find the chorus line, then cut_audio that range.”

The assistant should lead with the download link (and when it expires), and offer the editor handoff when you want waveform precision. For the browser flow without chat, see Cut audio from a YouTube video.