Customer.io MCP by usefulapi MCP Tools
Customer.io MCP by usefulapi exposes 13 tools. Each one has its own page with the configuration for every client that can run this server.
-
customerio_search_customerscustomerio search customers
-
customerio_get_customer_attributescustomerio get customer attributes
-
customerio_get_customer_segmentscustomerio get customer segments
-
customerio_get_customer_messagescustomerio get customer messages
-
customerio_list_segmentscustomerio list segments
-
customerio_list_campaignscustomerio list campaigns
-
customerio_get_campaigncustomerio get campaign
-
customerio_get_campaign_metricscustomerio get campaign metrics
-
customerio_list_messagescustomerio list messages
-
customerio_list_exportscustomerio list exports
-
customerio_list_collectionscustomerio list collections
-
customerio_send_transactional_emailcustomerio send transactional email
-
customerio_trigger_broadcastcustomerio trigger broadcast
This list was read from the server itself, by connecting to it and calling tools/list on 14 November 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.