mailbox MCP Tools
mailbox exposes 45 tools. Each one has its own page with the configuration for every client that can run this server.
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get_mailboxRead-onlyget mailbox
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get_usageRead-onlyget usage
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list_inbound_forwarding_addressesRead-onlylist inbound forwarding addresses
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list_inbound_mailRead-onlylist inbound mail
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get_inbound_mailRead-onlyget inbound mail
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list_postal_threadsRead-onlylist postal threads
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get_postal_threadRead-onlyget postal thread
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get_mailbox_mdRead-onlyget mailbox md
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propose_mailbox_md_editpropose mailbox md edit
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send_facility_messageMutatingsend facility message
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list_facility_conversationsRead-onlylist facility conversations
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get_facility_messagesRead-onlyget facility messages
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update_webhookMutatingupdate webhook
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send_outbound_mailMutatingsend outbound mail
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list_outbound_mailRead-onlylist outbound mail
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get_outbound_mailRead-onlyget outbound mail
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cancel_outbound_mailMutatingcancel outbound mail
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create_test_outbound_mailMutatingcreate test outbound mail
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advance_test_outbound_mailadvance test outbound mail
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list_agent_inboxRead-onlylist agent inbox
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get_agent_inbox_contextRead-onlyget agent inbox context
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get_agent_inbox_sourcesRead-onlyget agent inbox sources
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list_agent_inbox_scansRead-onlylist agent inbox scans
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get_agent_inbox_scanRead-onlyget agent inbox scan
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get_agent_inbox_activityRead-onlyget agent inbox activity
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report_agent_inbox_outcomereport agent inbox outcome
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get_agent_inbox_handlingRead-onlyget agent inbox handling
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propose_agent_inbox_handlingpropose agent inbox handling
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seed_agent_inbox_sandboxseed agent inbox sandbox
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list_webhook_endpointsRead-onlylist webhook endpoints
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create_webhook_endpointMutatingcreate webhook endpoint
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update_webhook_endpointMutatingupdate webhook endpoint
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test_webhook_endpointtest webhook endpoint
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test_webhook_endpoint_with_sampletest webhook endpoint with sample
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rotate_webhook_endpoint_secretrotate webhook endpoint secret
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list_webhook_deliveriesRead-onlylist webhook deliveries
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replay_webhook_deliveryreplay webhook delivery
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list_inbound_itemsRead-onlylist inbound items
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get_inbound_item_sourcesRead-onlyget inbound item sources
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search_inbound_itemsRead-onlysearch inbound items
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get_inbound_itemRead-onlyget inbound item
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get_inbound_pagesRead-onlyget inbound pages
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quote_inbound_forwardquote inbound forward
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request_inbound_actionrequest inbound action
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get_inbound_activityRead-onlyget inbound activity
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.