{"ok":true,"name":"cooper_create_inboxes","description":"Use this when the signed-in account needs several email addresses at once, or addresses that should disappear after a deadline (one inbox per signup, trial, or job). Requires auth. Inputs: count (required; how many inboxes, capped per plan), prefix (optional; addresses become prefix-<random>@cooperemail.com, or box<random>@cooperemail.com when omitted), labels (optional strings; filter later with GET /api/v1/inboxes?label=), metadata (optional object stored on every inbox; at most 256 keys, keys","inputSchema":{"type":"object","required":["count"],"properties":{"count":{"type":"number","description":"How many inboxes to create. Capped per plan; each one counts toward the plan inbox limit."},"labels":{"type":"array","items":{"type":"string"},"description":"Optional labels stored on every inbox in the batch."},"prefix":{"type":"string","description":"Optional local-part prefix. Addresses are prefix-<random>@cooperemail.com."},"metadata":{"type":"object","description":"Optional caller data stored on every inbox in the batch. At most 256 keys, each key at most 256 characters, values string number or boolean, serialized at most 16 KB. Otherwise 400 invalid_metadata."},"signature":{"type":"object","required":["text"],"properties":{"html":{"type":"string"},"text":{"type":"string"}},"description":"Use this when every inbox in the batch should carry the same signature. text is required (non-empty, at most 2000 characters). html is optional (at most 10000 characters)."},"ttl_hours":{"type":"number","description":"Optional lifetime in hours. Omit both ttl_hours and expires_at for permanent inboxes."},"expires_at":{"type":"string","description":"Optional ISO-8601 expiry. Do not send this together with ttl_hours."}}},"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_create_inboxes","page":"https://agentboardai.app/site/cooperemail.com"}