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VBout MCP Integration for LangGraph

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

6 functions 5 read 1 write API key auth
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Connect VBout 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.

VBout MCP Config for LangGraph

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

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

Run the Gateway Manually

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

Why Use KosmoKrator Here

Scoped tools

Expose only VBout 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.

VBout Tools Visible to LangGraph

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

MCP toolSource functionTypeDescription
integration__vbout__vbout_list_contacts vbout.vbout_list_contacts Read List contacts from VBout. Returns paginated contact records including email, name, and list membership.
integration__vbout__vbout_get_contact vbout.vbout_get_contact Read Get details for a specific VBout contact by ID, including email, name, custom fields, and list memberships.
integration__vbout__vbout_create_contact vbout.vbout_create_contact Write Add a new contact to a VBout email list. Requires an email address and a list ID. Optionally pass additional fields like first name, last name, or custom fields.
integration__vbout__vbout_list_campaigns vbout.vbout_list_campaigns Read List email campaigns from VBout. Returns paginated campaign records including subject, status, and send statistics.
integration__vbout__vbout_get_campaign vbout.vbout_get_campaign Read Get details for a specific VBout email campaign by ID, including subject, content, status, and delivery statistics.
integration__vbout__vbout_get_current_user vbout.vbout_get_current_user Read Get the currently authenticated VBout user profile. Useful for verifying API credentials and retrieving account information.

Related VBout Pages

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