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Elastic Email MCP Integration for LangChain

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

6 functions 4 read 2 write API key auth
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Connect Elastic Email 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.

Elastic Email MCP Config for LangChain

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

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

Run the Gateway Manually

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

Why Use KosmoKrator Here

Scoped tools

Expose only Elastic Email 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.

Elastic Email Tools Visible to LangChain

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

MCP toolSource functionTypeDescription
integration__elastic_email__elasticemail_send_email elastic-email.elasticemail_send_email Write Send a transactional email via Elastic Email. Provide the recipient address, subject, and HTML body.
integration__elastic_email__elasticemail_list_templates elastic-email.elasticemail_list_templates Read List email templates available in your Elastic Email account.
integration__elastic_email__elasticemail_get_template elastic-email.elasticemail_get_template Read Get details of a specific email template by its ID from Elastic Email.
integration__elastic_email__elasticemail_list_contacts elastic-email.elasticemail_list_contacts Read List contacts from your Elastic Email account.
integration__elastic_email__elasticemail_create_contact elastic-email.elasticemail_create_contact Write Create or add a contact in Elastic Email. Optionally assign the contact to an existing list.
integration__elastic_email__elasticemail_get_current_user elastic-email.elasticemail_get_current_user Read Get information about the currently authenticated Elastic Email user account.

Related Elastic Email Pages

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