MCP tools: system

Accounts, licensing, and update state over MCP. write tools need ATBRIDGE_ALLOW_WRITES=1 — see the MCP overview.

Tool	Access	Purpose	Key parameters
accounts_list	read	List accounts + identities — pick an identity for mail_send / mail_compose	—
bridge_status	read	Diagnose the atbridge ↔ Thunderbird connection: reachable, whether Thunderbird is connected, port, pid, account count, and the licence plan (never absent; "none" when unlicensed). free_pro_trial_active is present and true while you’re inside the 14-day full-Pro trial — so plan:"free" with it means Pro features (MCP, Branded compose) work right now. Returns fast — call it if a tool just failed or timed out, or to answer “what plan am I on?”	—
license_billing_status	read	Your subscription: plan, cohort, period end, payment state	—
license_devices_list	read	Devices on your license (id, hostname, platform, status)	—
license_billing_portal	read	A Stripe Customer Portal URL to manage or cancel	—
version_status	read	Whether a newer atbridge.ai is available (read network-free from the cached update check)	—
auto_update_status	read	Whether automatic updates are enabled (the opt-in preference; default off)	—
license_devices_deactivate	write	Release a device slot on your license (24h cooldown)	device_id
auto_update_set	write	Enable/disable automatic atbridge.ai updates (default off)	enabled