Can I use Postmark as a CLI?

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

Can I expose Postmark through MCP?

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

Where are Postmark credentials stored?

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

Can I deny write access for Postmark MCP tools?

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

productivity

Postmark MCP, CLI, and Lua Integration for AI Agents

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

Postmark 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.

Agent Surfaces

Postmark CLIHeadless setup, JSON output, direct function calls. Postmark MCPExpose selected tools to local MCP clients. Postmark LuaAgent-facing namespace and Lua reference. FeedbackReport missing tools, auth issues, or bad metadata.

Machine-Readable Metadata

integration_slug: postmark
route_slug: postmark
package: postmark
auth_strategy: api_token
cli_setup_supported: true
cli_runtime_supported: true
mcp_gateway_supported: true
lua_supported: true

Function Catalog

Function	Type	Parameters	Description
`postmark.postmark_list_messages`	Read `read`	7	List outbound messages from Postmark. Supports filtering by recipient, sender, subject, status, and tag.
`postmark.postmark_get_message`	Read `read`	1	Get details for a specific Postmark outbound message including body, recipients, and delivery status.
`postmark.postmark_send_email`	Write `write`	9	Send an email through Postmark. Requires To, From, and Subject. Provide either TextBody or HtmlBody.
`postmark.postmark_send_template`	Write `write`	11	Send an email using a Postmark template. Provide either a TemplateId or TemplateAlias along with the template model data.
`postmark.postmark_get_delivery_stats`	Read `read`	0	Get email delivery statistics for your Postmark server, including counts of sent, bounced, and spam complaints.
`postmark.postmark_list_templates`	Read `read`	2	List all email templates in Postmark. Supports pagination.
`postmark.postmark_get_template`	Read `read`	1	Get details for a Postmark email template including subject, HTML body, and text body.
`postmark.postmark_list_servers`	Read `read`	3	List servers in the Postmark account using an account API token. Supports filtering by name and pagination.
`postmark.postmark_get_current_user`	Read `read`	0	Get the current Postmark server info including name, settings, and delivery stats. Useful as a health check.