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EmailOctopus MCP Integration for LangGraph

Connect EmailOctopus 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 EmailOctopus 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.

EmailOctopus MCP Config for LangGraph

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

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

Run the Gateway Manually

kosmokrator mcp:serve --integration=email-octopus --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only EmailOctopus 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.

EmailOctopus Tools Visible to LangGraph

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

MCP toolSource functionTypeDescription
integration__email_octopus__emailoctopus_list_contacts email-octopus.emailoctopus_list_contacts Read List contacts in an EmailOctopus mailing list. Returns contact email addresses, statuses, and pagination cursors.
integration__email_octopus__emailoctopus_get_contact email-octopus.emailoctopus_get_contact Read Get details of a specific contact in an EmailOctopus mailing list, including email address, status, and custom fields.
integration__email_octopus__emailoctopus_create_contact email-octopus.emailoctopus_create_contact Write Add a new contact to an EmailOctopus mailing list. Requires an email address.
integration__email_octopus__emailoctopus_list_campaigns email-octopus.emailoctopus_list_campaigns Read List all email campaigns in your EmailOctopus account, including their status, subject, and send dates.
integration__email_octopus__emailoctopus_get_campaign email-octopus.emailoctopus_get_campaign Read Get details of a specific EmailOctopus campaign, including status, subject, content, and delivery statistics.
integration__email_octopus__emailoctopus_get_current_user email-octopus.emailoctopus_get_current_user Read Get the authenticated EmailOctopus account details, including name and email address.

Related EmailOctopus Pages

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