Calendly for your AI agent

Give Claude Code, Cursor, Codex or your own agent Calendly through one MCP URL and one key. Your team signs in to Calendly once and the agent never holds a token. Reads run at once; anything that changes Calendly waits for your approval.

Get your key Read the docs

53: Calendly actions your agent gets as tools
1 URL: one endpoint, one key per agent
60/min: calls per key, hard caps on top
0: Calendly credentials inside your agent

Actions

What your agent can do in Calendly

A sample of the 53 actions. Your agent sees the full list with tools/list.

Reads · run at once

Get current user (Deprecated)
Get event
Get event invitee
Get event type
Get event type availability
Get group
Get group relationship
Get invitee no show

Writes · wait for your approval

Cancel scheduled event
Create event invitee (Deprecated)
Create Event Type
Create One-Off Event Type
Create scheduling link
Create share
Create single use scheduling link
Create webhook subscription

Quickstart

Connect Calendly to your agent in two minutes

Create your account and connect Calendly with its normal sign-in page.
Open Developers and create an agent key (you can limit it to Calendly).
Add the server to your client:

Claude Code · Terminal

claude mcp add --transport http vellarin https://hub.vellarin.ai/api/hub/mcp --header "Authorization: Bearer <key>"

Cursor · ~/.cursor/mcp.json (or .cursor/mcp.json in a project)

{
  "mcpServers": {
    "vellarin": {
      "url": "https://hub.vellarin.ai/api/hub/mcp",
      "headers": {
        "Authorization": "Bearer ${env:VELLARIN_HUB_KEY}"
      }
    }
  }
}

Codex · ~/.codex/config.toml

[mcp_servers.vellarin]
url = "https://hub.vellarin.ai/api/hub/mcp"
bearer_token_env_var = "VELLARIN_HUB_KEY"

Questions

Calendly and AI agents

How do I connect Calendly to Claude Code, Cursor or Codex?

Create a free Vellarin account, connect Calendly with its normal sign-in, create an agent key on the Developers page and add the Vellarin Hub MCP server to your client with one line. Your agent then sees the Calendly actions as tools.

Can my agent change things in Calendly without asking me?

No. Read actions run at once. Any action that sends, creates, changes or deletes something in Calendly waits for the workspace owner's approval and then runs exactly once.

Does my agent get my Calendly password or token?

No. The sign-in lives on the server side. Your agent holds only a Vellarin Hub key, which you can scope to Calendly alone, cap per day and per month, and revoke at any moment.

What does it cost?

Hub Free includes 500 app calls a month and 1 agent key, with no card. Over the cap the answer is "upgrade or wait", never a charge.