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Calendly MCP Integration for LangChain

Connect Calendly to LangChain through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

7 functions 6 read 1 write Bearer token auth
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Connect Calendly to LangChain

Bridge LangChain agents to local KosmoKrator integration tools through MCP or headless CLI calls.

Use the MCP gateway when the agent should discover tools, or wrap kosmo integrations:call for fixed chains. The gateway is local, scoped to this integration, and starts with --write=deny so LangChain can inspect read-capable tools without receiving write access by default.

Calendly MCP Config for LangChain

Keep the gateway scoped to the integration and operation class needed by the chain.

{
  "mcpServers": {
    "kosmokrator-calendly": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=calendly",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=calendly --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Calendly instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

Calendly Tools Visible to LangChain

LangChain sees stable MCP tool names generated from the Calendly integration catalog.

MCP toolSource functionTypeDescription
integration__calendly__calendly_list_event_types calendly.calendly_list_event_types Read List event types for a Calendly user or organization.
integration__calendly__calendly_get_event_type calendly.calendly_get_event_type Read Get a single Calendly event type by UUID.
integration__calendly__calendly_create_booking calendly.calendly_create_booking Write Create a booking in Calendly by generating a one-off event type with a scheduling URL for the invitee.
integration__calendly__calendly_list_bookings calendly.calendly_list_bookings Read List scheduled Calendly bookings (events) with optional filters.
integration__calendly__calendly_list_organizations calendly.calendly_list_organizations Read List Calendly organizations the authenticated user belongs to.
integration__calendly__calendly_list_users calendly.calendly_list_users Read List users (organization memberships) in a Calendly organization.
integration__calendly__calendly_get_current_user calendly.calendly_get_current_user Read Get the authenticated Calendly user profile.

Related Calendly Pages

Calendly CLIUse direct JSON commands instead of MCP discovery. Calendly MCPFull gateway reference and MCP tool names. KosmoKrator for LangChainClient-level gateway setup.