{"ok":true,"name":"cooper_register_webhook","description":"Use this when the agent or app should be notified immediately (HTTP POST) when mail arrives instead of polling cooper_list_messages. Requires auth. Inputs: url (required; public http or https URL; localhost and private addresses are rejected), events (optional; any of message.received, message.held, message.sent, message.blocked, message.bounced, message.complained, task.received, owner.reply, domain.verified, draft.created, draft.approved, draft.rejected, draft.sent, account.sending_paused, acc","inputSchema":{"type":"object","required":["url"],"properties":{"url":{"type":"string","description":"Public https URL that receives POST deliveries"},"events":{"type":"array","items":{"enum":["message.received","message.held","message.sent","message.blocked","message.bounced","message.complained","task.received","owner.reply","chat.message","domain.verified","draft.created","draft.approved","draft.rejected","draft.sent","account.sending_paused","account.sending_resumed","thread.assigned","thread.unassigned","thread.folder_updated","rule.matched"],"type":"string"},"description":"Event types to deliver. Default: [\"message.received\"]"},"headers":{"type":"object","description":"Up to 5 extra headers sent on delivery. Names must be Authorization or X-*. Values are stored encrypted and never returned in full.","additionalProperties":{"type":"string"}},"inbox_id":{"type":"string","description":"Only deliver events for this inbox. Stored into inbox_ids. Omit for every inbox on the account."},"client_id":{"type":"string","description":"Optional idempotency key. The same client_id returns the original hook with the secret redacted."},"inbox_ids":{"type":"array","items":{"type":"string"},"description":"Up to 10 inbox ids. The hook matches when this list is empty or contains the event inbox. More than 10 returns 400 too_many_inboxes."}}},"serverUrl":"https://cooperemail.com/mcp","transport":"http","handshake":"ok","host":"cooperemail.com","score":93,"grade":"A","auth":"oauth","lastScannedAt":"2026-10-30T13:05:15.807Z","stale":false,"permalink":"https://agentboardai.app/mcp/cooperemail.com/cooper_register_webhook","page":"https://agentboardai.app/site/cooperemail.com"}