KosmoKrator

communication

RingCentral MCP Integration for LangGraph

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

6 functions 5 read 1 write Manual OAuth token auth
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Connect RingCentral to LangGraph

Run KosmoKrator integration calls from LangGraph nodes while preserving local credentials and permissions.

Use a graph node that calls the KosmoKrator CLI for deterministic steps or an MCP client for dynamic tool selection. The gateway is local, scoped to this integration, and starts with --write=deny so LangGraph can inspect read-capable tools without receiving write access by default.

RingCentral MCP Config for LangGraph

Headless CLI calls fit repeatable graph edges; MCP fits exploratory agent nodes.

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

Run the Gateway Manually

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

Why Use KosmoKrator Here

Scoped tools

Expose only RingCentral 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.

RingCentral Tools Visible to LangGraph

LangGraph sees stable MCP tool names generated from the RingCentral integration catalog.

MCP toolSource functionTypeDescription
integration__ringcentral__ringcentral_list_messages ringcentral.ringcentral_list_messages Read List messages from the RingCentral message store. Supports filtering by type (SMS, Fax, VoiceMail), date range, read status, and direction. Returns paginated message records.
integration__ringcentral__ringcentral_get_message ringcentral.ringcentral_get_message Read Get detailed information about a specific message in the RingCentral message store by its ID. Returns the full message record including sender, recipient, subject, and content.
integration__ringcentral__ringcentral_send_sms ringcentral.ringcentral_send_sms Write Send an SMS message via RingCentral. The "from" number must be a phone number assigned to the authenticated extension. The "to" number is the destination phone number.
integration__ringcentral__ringcentral_list_calls ringcentral.ringcentral_list_calls Read List call log records for the authenticated RingCentral extension. Supports filtering by date range, direction, type, and phone number. Returns paginated call records with caller, receiver, duration, and result.
integration__ringcentral__ringcentral_list_contacts ringcentral.ringcentral_list_contacts Read List contacts from the RingCentral personal address book. Supports filtering by name prefix and pagination. Returns contact records with names, phone numbers, and email addresses.
integration__ringcentral__ringcentral_get_current_user ringcentral.ringcentral_get_current_user Read Get information about the currently authenticated RingCentral extension. Returns extension ID, name, status, phone numbers, and account details.

Related RingCentral Pages

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