Can I use Mailtrap as a CLI?

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

Can I expose Mailtrap through MCP?

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

Where are Mailtrap credentials stored?

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

Can I deny write access for Mailtrap MCP tools?

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

productivity

Mailtrap CLI for Cron Jobs

Use the Mailtrap CLI for cron jobs with headless JSON commands, schema discovery, credentials, and permission controls.

7 functions 6 read 1 write API token auth

Submit Mailtrap feedback View package source

Mailtrap CLI for Cron Jobs

Schedule repeatable integration workflows from cron while keeping credentials in KosmoKrator config.

Use the headless CLI from cron when an operation should run without an interactive agent session. The Mailtrap CLI uses the same integration registry as the TUI, Lua runtime, and MCP gateway, but returns predictable command output for automation.

Command Shape

# Mailtrap CLI for Cron Jobs
kosmokrator integrations:configure mailtrap --set api_token="$MAILTRAP_API_TOKEN" --enable --read allow --write ask --json
kosmo integrations:call mailtrap.mailtrap_list_inboxes '{}' --json

Discovery Before Execution

Agents and scripts can inspect Mailtrap docs and schemas before choosing a function.

kosmo integrations:docs mailtrap --json
kosmo integrations:docs mailtrap.mailtrap_list_inboxes --json
kosmo integrations:schema mailtrap.mailtrap_list_inboxes --json
kosmo integrations:search "Mailtrap" --json
kosmo integrations:list --json

Useful Mailtrap CLI Functions

Function	Type	Parameters	Description
`mailtrap.mailtrap_list_inboxes`	Read	none	List all inboxes in the Mailtrap account. Returns inbox IDs, names, and email addresses.
`mailtrap.mailtrap_get_inbox`	Read	inbox_id	Get details for a specific Mailtrap inbox by ID, including its email address, settings, and message counts.
`mailtrap.mailtrap_list_messages`	Read	inbox_id, page, per_page, search	List messages in a Mailtrap inbox with optional search and pagination.
`mailtrap.mailtrap_get_message`	Read	inbox_id, message_id	Get a single message from a Mailtrap inbox by its ID, including subject, sender, recipient, and body.
`mailtrap.mailtrap_send_test_email`	Write	from, to, subject, text, html, inbox_id	Send a test email through Mailtrap. Provide sender, recipient(s), subject, and either text or HTML body.
`mailtrap.mailtrap_list_suppressions`	Read	inbox_id, page, per_page	List suppressions (blocked recipients) for a Mailtrap inbox.
`mailtrap.mailtrap_get_current_user`	Read	none	Get the current Mailtrap user profile and account info. Useful as a health check.

Automation Notes

Use --json for machine-readable output.
Keep credentials out of argv by using environment variables or stored KosmoKrator configuration.
Configure read/write policy before unattended runs; use --force only for trusted automation.
Use the MCP gateway instead when the agent needs dynamic tool discovery inside a conversation.

Related Mailtrap CLI Pages

CI Mailtrap CLI for CI. Shell Scripts Mailtrap CLI for shell scripts. Headless Automation Mailtrap CLI for headless automation. Coding Agents Mailtrap CLI for coding agents.