Customer.io · GraphQL Specification

Customer.io GraphQL Schema

This conceptual GraphQL schema represents the Customer.io messaging and marketing automation platform. Customer.io provides APIs for tracking behavioral data, managing customer profiles and segments, sending transactional messages, triggering campaigns and broadcasts, and retrieving delivery metrics. The schema covers the full breadth of the Customer.io App API and Track API surface.

Documentation Endpoint View on GitHub Behavioral DataBroadcastsCampaignsCDPCustomer DataCustomer Data PlatformData IngestionEmailEvent TrackingMarketing AutomationMessagingPush NotificationsSegmentsSMSTransactional EmailGraphQL

Overview

Customer.io GraphQL Schema is a GraphQL API specification published by Customer.io on the APIs.io network.

This conceptual GraphQL schema represents the Customer.io messaging and marketing automation platform. Customer.io provides APIs for tracking behavioral data, managing customer profiles and segments, sending transactional messages, triggering campaigns and broadcasts, and retrieving delivery metrics. The schema covers the full breadth of the Customer.io App API and Track API surface.

The specification includes 5 reference links.

Tagged areas include Behavioral Data, Broadcasts, Campaigns, CDP, and Customer Data.

Endpoint

References

Related API Specs

Customer.io Track API (OpenAPI) Customer.io Activities API (OpenAPI) Customer.io Alias API (OpenAPI) Customer.io Batch API (OpenAPI) Customer.io Broadcasts API (OpenAPI) Customer.io Campaigns API (OpenAPI) Customer.io Collections API (OpenAPI) Customer.io Customers API (OpenAPI) Customer.io Devices API (OpenAPI) Customer.io Entity API (OpenAPI) Customer.io Events API (OpenAPI) Customer.io Exports API (OpenAPI) Customer.io Group API (OpenAPI) Customer.io Identify API (OpenAPI) Customer.io Merge API (OpenAPI) Customer.io Messages API (OpenAPI) Customer.io Newsletters API (OpenAPI) Customer.io Page API (OpenAPI) Customer.io Screen API (OpenAPI) Customer.io Segments API (OpenAPI) Customer.io Sender Identities API (OpenAPI) Customer.io Snippets API (OpenAPI) Customer.io Transactional API (OpenAPI) Customer.io App API (OpenAPI) Customer.io Pipelines API (OpenAPI) Customer.io Reporting Webhooks (OpenAPI)
Back to Customer.io · All GraphQL Specs · GitHub

Work with this as data

Every GraphQL schema here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for graphql

4 MCP tools reach this
  • find_graphqlBrowse and filter every GraphQL schema in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This GraphQL schema
curl "https://apis.io/api/v1/graphql/customer-io-graphql"
All graphql
curl "https://apis.io/api/v1/graphql?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.