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Ultravox (BYOK) — connector documentation

  • MCP endpoint: https://byok-ultravox.connectorbay.com/mcp
  • REST API: POST https://byok-ultravox.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://byok-ultravox.connectorbay.com/openapi.json
  • Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
  • Authentication: your own Ultravox Ultravox API key, sent in the X-Upstream-Key header of every request (never stored, logged or cached)
  • Health: https://byok-ultravox.connectorbay.com/health · Tool schemas: https://byok-ultravox.connectorbay.com/tools.json
  • Publisher: Unify Dynamics LLC · connectorbay.com/byok-ultravox · agent@connectorbay.com

What Ultravox (BYOK) is for

Ultravox (BYOK) lets an AI assistant read your own Ultravox data through the Ultravox API with a key you supply (Ultravox API key). Read-only: 8 tools (get_account, get_call_usage, list_calls, list_agents, list_voices, list_tools, list_corpora, list_models). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to api.ultravox.ai. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Ultravox. Ultravox and its logos are trademarks of their owners and are used only to say which service the connector works with.

Ask your assistant things like:

  • "How much free time do I have left on Ultravox and what is my concurrency limit?"
  • "How many Ultravox call minutes were billed last week?"
  • "Which Ultravox calls ended with a system error recently?"
  • "Which Ultravox agents do I have?"
  • "Which Ultravox voices speak Spanish?"
  • "Which tools are available to my Ultravox agents?"

What it does

  • get_account: Show the account's plan, free time used and remaining, active and allowed concurrent calls, and voice and corpus limits.
  • get_call_usage: Get aggregated call usage (counts, errors, duration, billed minutes) for all time, per day and per hour, optionally filtered by date range, agent or voice.
  • list_calls: List calls with timing, end reason, billed duration, model, voice and agent id; transcripts, prompts and join links are not returned.
  • list_agents: List voice agents with name, creation time and published revision; supports search and paging.
  • list_voices: List available voices with language, provider and ownership; filter by language, ownership or search text.
  • list_tools: List tools that agents can use (built-in and your own) with names and creation time.
  • list_corpora: List knowledge corpora (retrieval collections) with name, description and creation time.
  • list_models: List the language models that can be used for Ultravox inference.

BYOK key

You bring your own Ultravox Ultravox API key (https://app.ultravox.ai/settings/). Your assistant sends it in the X-Upstream-Key header with each request. ConnectorBay uses it for that one call only: it is never stored, logged or cached, never shown in an answer, and it is only sent to api.ultravox.ai over https, with no redirects followed. Create a key with the fewest permissions the tools need (read-only if the provider offers it), and revoke it at the provider whenever you like.

Data sources

Live from the Ultravox API (api.ultravox.ai) with a BYOK key; documentation: https://docs.ultravox.ai/api-reference/introduction. Endpoints checked against that documentation on 2026-10-16.

What it is not

Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Ultravox. Ultravox and its logos are trademarks of their owners and are used only to say which service the connector works with. It is read-only: it never creates, changes, sends or deletes anything in your Ultravox account.

Built for: Worldwide. Languages: English.