Do I need to install anything?

No - claude mcp add just registers the remote address https://volai.cz/mcp; nothing runs or installs locally.

Where do I get an API key?

In the portal after signup, under API and MCP - the key starts with vk_ and works the same for MCP and REST.

What can Claude Code do with volai?

The full set of 31 MCP tools - make_call, send_sms, buy_number, create_agent, and 27 more, covering calls, SMS, numbers, and voice agents. The full list is on /docs/mcp.

Is it safe to give an agent an API key?

The key can spend your credit just like the REST API, so keep it only in local config and never commit it to a repository. In the portal you can delete it and create a new one anytime.

MCP server

volai in Claude Code: one command and your agent can call

The volai MCP server gives Claude Code phone calls and SMS. Just say what you want, and the agent picks the right tool and calls it - right from the command line.

1Create an account and a key

Sign up for volai and verify your email - your credit only lands on the account after that. Then, in the portal under API and MCP, create a new key: it starts with vk_ and works for the REST API too.

2Add volai as an MCP server

Run one command in your terminal - it registers volai as a remote HTTP server and saves the key straight into Claude Code's config:

bash

claude mcp add --transport http volai https://volai.cz/mcp \
  --header "Authorization: Bearer vk_YOUR_KEY"

3Verify the connection

Ask Claude Code something like "Check how much credit I have left" - if it answers with a number instead of asking for an API key, volai is connected correctly.

4Try your first call

Tell your editor "Call me and try the role of a cafe receptionist" - Claude Code calls the make_call tool with a systemPrompt parameter and starts a trial call from volai's shared demo number, no number of your own required. It needs a verified email and tops out at 3 trial calls a day per account - past that, call through your own agent (agentId) on your own number, since the trial limit doesn't apply there.

Or add volai to your editor in one click

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Claude Code

bash

claude mcp add --transport http volai https://volai.cz/mcp \
  --header "Authorization: Bearer vk_YOUR_KEY"

After installing, replace vk_YOUR_KEY with your key from the API and MCP section of the portal.

What you can do with it

Place a call straight from a prompt

Say who to call and why, and Claude Code runs the call with the make_call tool - no switching to your phone or the portal, and it works the same from a non-interactive script.

Manage numbers and agents by prompt

buy_number, create_agent, set_number_routing - setting up a phone line feels as natural as writing code, one prompt at a time.

Debug calls without leaving the window

When something's off, have Claude Code call get_call with the call ID and get the transcript and summary right away, no portal required.

Frequently asked questions

Do I need to install anything?: No - claude mcp add just registers the remote address https://volai.cz/mcp; nothing runs or installs locally.
Where do I get an API key?: In the portal after signup, under API and MCP - the key starts with vk_ and works the same for MCP and REST.
What can Claude Code do with volai?: The full set of 31 MCP tools - make_call, send_sms, buy_number, create_agent, and 27 more, covering calls, SMS, numbers, and voice agents. The full list is on /docs/mcp.
Is it safe to give an agent an API key?: The key can spend your credit just like the REST API, so keep it only in local config and never commit it to a repository. In the portal you can delete it and create a new one anytime.

Try it now

Get 50 CZK in credit Open the docs