mcp server

the mcp server lets compatible assistants call hold your voice tools through the user's api key. it wraps the same rest api.

updated may 3, 2026 api and mcp no images

quick answer

use mcp when a user wants an ai assistant to check or rewrite drafts in their own workflow.

use this for

claude desktop setup
cursor or assistant workflows
agent-based document checks

steps

create an api key.
download `mcp_server.py` from the site.
set `HYV_API_KEY` in the mcp config.
set `HYV_BASE_URL` only if using a non-production endpoint.
restart the assistant.
call the hold your voice tools.

details to know

tools include analyze, rewrite, list profiles, get usage, list documents, get document, create document, update document, and resolve brand.
the server speaks stdio json-rpc.
all api calls still use `/v1/` with bearer auth behind the scenes.

limits and edge cases

if the api key is missing, every tool call fails.
mcp does not bypass plan, scope, or quota rules.

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