Can I use Sendy as a CLI?

Yes. KosmoKrator exposes a Sendy CLI through kosmo integrations:call and the provider shortcut command. Commands can return JSON for scripts, CI, and coding agents.

Can I expose Sendy through MCP?

Yes. The KosmoKrator MCP gateway can expose selected Sendy tools to clients such as Claude Code, Cursor, Codex, and other MCP-compatible tools.

Where are Sendy credentials stored?

Sendy credentials are configured in KosmoKrator's local integration settings and reused by CLI, Lua, and MCP gateway surfaces.

Can I deny write access for Sendy MCP tools?

Yes. Start the gateway with --write=deny for read-only clients, or use ask/allow only for trusted workspaces.

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Sendy MCP Integration for Claude Agent SDK

Connect Sendy to Claude Agent SDK through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

5 functions 2 read 3 write API key auth

Submit Sendy feedback View package source

Connect Sendy to Claude Agent SDK

Give Claude Agent SDK workflows access to KosmoKrator integrations through a local MCP server.

Add a KosmoKrator stdio MCP server to the Claude Agent SDK options. The gateway is local, scoped to this integration, and starts with --write=deny so Claude Agent SDK can inspect read-capable tools without receiving write access by default.

Sendy MCP Config for Claude Agent SDK

Use a narrow integration list so the agent does not load unrelated tools.

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

Run the Gateway Manually

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

Why Use KosmoKrator Here

Scoped tools

Expose only Sendy 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.

Sendy Tools Visible to Claude Agent SDK

Claude Agent SDK sees stable MCP tool names generated from the Sendy integration catalog.

MCP tool	Source function	Type	Description
`integration__sendy__sendy_subscribe`	`sendy.sendy_subscribe`	Write	Subscribe an email address to a Sendy mailing list. Optionally provide a name and custom fields.
`integration__sendy__sendy_unsubscribe`	`sendy.sendy_unsubscribe`	Write	Unsubscribe an email address from a Sendy mailing list.
`integration__sendy__sendy_list_subscribers`	`sendy.sendy_list_subscribers`	Read	Get the total number of subscribers for a Sendy mailing list.
`integration__sendy__sendy_create_campaign`	`sendy.sendy_create_campaign`	Write	Create a new email campaign in Sendy. You can create a draft or send immediately. Requires a list ID, subject, HTML content, and sender details.
`integration__sendy__sendy_get_current_user`	`sendy.sendy_get_current_user`	Read	Get the current brand/account information from Sendy. Useful for verifying credentials and retrieving brand details.

Related Sendy Pages

Sendy CLIUse direct JSON commands instead of MCP discovery. Sendy MCPFull gateway reference and MCP tool names. KosmoKrator for Claude Agent SDKClient-level gateway setup.