Customer.io

Customer.io Customers API

Look up customer profiles, search for customers, and retrieve customer attributes and activity data.

GitHub OpenAPI
Business capability
Customer Data Management BC-420.10

Operations 9

GET /v1/customers Get customers by email #
POST /v1/customers Search for customers #
GET /v1/customers/{customer_id}/attributes Lookup a customer's attributes #
GET /v1/customers/{customer_id}/relationships Lookup a customer's relationships #
POST /v1/customers/attributes List customers, attributes, and devices #
GET /v1/customers/{customer_id}/segments Lookup a customer's segments #
GET /v1/customers/{customer_id}/messages Lookup messages sent to a customer #
GET /v1/customers/{customer_id}/activities Lookup a customer's activities #
GET /v1/customers/{customer_id}/subscription_preferences Lookup a customer's subscription preferences #

Documentation

📖
Documentation
https://docs.customer.io/integrations/api/app/
📖
Documentation
https://docs.customer.io/integrations/data-in/connections/http-api/

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/customer-io/refs/heads/main/openapi/customer-io-customers-api-openapi.yml

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OpenAPI Specification

customer-io-customers-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  version: 1.0.0
  title: Customer.io App Customers API
  description: Our App API provides ways to trigger messages and retrieve information about people, campaigns, broadcasts, and more.
servers:
- url: https://api.customer.io
  description: The base URL for broadcasts, transactional messages, and data-retrieval APIs. These endpoints use bearer authorization, and require a [token that you generate in the UI](https://fly.customer.io/settings/api_credentials?keyType=app).
- url: https://api-eu.customer.io
  description: The base URL for broadcasts, transactional messages, and data-retrieval APIs (EU region). These endpoints use bearer authorization, and require a [token that you generate in the UI](https://fly.customer.io/settings/api_credentials?keyType=app).
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/customer-io/refs/heads/main/openapi/customer-io-customers-api-openapi.yml