Auphonic (via Zapier MCP)

What it does

Auphonic is the de facto automated audio post-production service — loudness normalization to broadcast specs, speech leveling, denoising, de-essing, and filler-word cutting. It has no first-party MCP server; Zapier's hosted MCP exposes Auphonic actions to agents, making it the verified route for agent-driven dialogue cleanup and final-mix loudness compliance.

Connect

https://mcp.zapier.com/api/v1/connect

Remote headers required: Authorization. Use the local stdio command when your client cannot attach custom MCP headers.

Connection is set up through the vendor's flow — follow the official connect instructions.

Field notes

Connect details filled in on 17 Aug 2026: Zapier's help centre now documents one shared Streamable HTTP endpoint, https://mcp.zapier.com/api/v1/connect (live, 401 unauthenticated), with `Authorization: Bearer <token>` as the recommended form — the older per-user URL with the token in a query string still works but leaks the secret into logs. The token is minted per MCP server you create at mcp.zapier.com after connecting Auphonic, is shown exactly once, and grants whatever tools that server exposes, so treat it as a password; there is no published CLI one-liner, so add it through your client's header config. Still a generic Zapier gateway rather than a dedicated audio MCP: the surface is two Auphonic actions — Create Production and its trigger — so an agent gets 'submit a job with a preset', not per-parameter mastering control, and every call routes your audio through a third integration layer. Tool names stay null because Zapier mints them from the actions you enable rather than publishing a fixed list — read tools/list once connected. Auphonic gives 2 free processing hours per month, and its own docs at auphonic.com/help still make no mention of MCP. For measured loudness compliance without the middleman, REAPER MCP in this directory does analyze_loudness plus apply_limiter locally; ElevenLabs isolate_audio remains the nearest one-shot dialogue denoiser.

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