Can I use Mailer Send as a CLI?

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

Can I expose Mailer Send through MCP?

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

Where are Mailer Send credentials stored?

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

Can I deny write access for Mailer Send MCP tools?

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

other

Mailer Send MCP, CLI, and Lua Integration for AI Agents

Mailer Send integration docs for AI agents: MCP gateway setup, Mailer Send CLI commands, Lua API reference, credentials, and function schemas.

7 functions 6 read 1 write API token auth

Submit Mailer Send feedback View package source

Mailer Send for agents

Credentials can be configured manually in web or CLI hosts.

Use this integration from Lua code mode, the headless integrations CLI, or the KosmoKrator MCP gateway. The same package metadata powers all three surfaces.

Machine-Readable Metadata

integration_slug: mailer-send
route_slug: mailer-send
package: mailer-send
auth_strategy: api_token API token
cli_setup_supported: true
cli_runtime_supported: true
mcp_gateway_supported: true
lua_supported: true
supports_multi_account: true

Quick Links

Lua APIAgent-facing namespace and function reference. Mailer Send CLIHeadless setup and direct function calls. Mailer Send MCPMCP gateway setup for external clients. Submit feedbackReport missing tools, auth problems, wrong docs, or runtime issues. ContributeAdd tools or improve metadata in the integrations repo.

Mailer Send MCP Client Matrix

Use these pages when a specific agent client or framework needs copy-pasteable MCP setup for Mailer Send.

Mailer Send CLI Matrix

Use these pages for direct Mailer Send CLI workflows in scripts, CI, cron, and agent wrappers.

CI Mailer Send CLI for CI. Cron Jobs Mailer Send CLI for cron jobs. Shell Scripts Mailer Send CLI for shell scripts. Headless Automation Mailer Send CLI for headless automation. Coding Agents Mailer Send CLI for coding agents.

Function Catalog

Function	Type	Parameters	Description
`mailer-send.mailer_send_list_messages`	Read `read`	2	List email messages from your MailerSend account. Returns a paginated list of sent messages with their IDs, subjects, and statuses.
`mailer-send.mailer_send_get_message`	Read `read`	1	Get detailed information about a specific email message by its ID. Returns the full message object including status, recipients, subject, and content.
`mailer-send.mailer_send_send_email`	Write `write`	5	Send an email through the MailerSend API. Requires a sender (from), one or more recipients (to), and a subject. Optionally provide HTML and/or plain text content.
`mailer-send.mailer_send_list_templates`	Read `read`	2	List email templates available in your MailerSend account. Returns template IDs, names, and types for use when sending templated emails.
`mailer-send.mailer_send_list_domains`	Read `read`	3	List sending domains configured in your MailerSend account. Returns domain names, verification statuses, and related settings.
`mailer-send.mailer_send_list_recipients`	Read `read`	2	List recipients (contacts) from your MailerSend account. Returns recipient emails, names, and subscription statuses.
`mailer-send.mailer_send_get_current_user`	Read `read`	0	Verify MailerSend API connectivity by fetching a minimal list of domains. Use this as a health check to confirm the API token is valid and the service is reachable.