Epsilon Customers API

The Customers API from Epsilon — 3 operation(s) for customers.

Operations 4

POST /customers Create or update a customer #
GET /customers Retrieve a list of customers #
GET /customers/{customerId} Retrieve a customer #
POST /customers/manage-segments Manage customer-segment linkage #

Work with this as data

Every API 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 apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • 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 API
curl "https://apis.io/api/v1/apis/epsilon-customers-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

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

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

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

OpenAPI Specification

epsilon-customers-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Epsilon Retail Media Integration Customers API
  version: '1'
  x-source: https://developers.citrusad.com/integration/reference/
servers:
- url: https://integration-BASE-URL.citrusad.com/v1/
security:
- sec0: []
tags:
- name: Customers
paths:
  /customers:
    post:
      summary: Create or update a customer
      description: ''
      operationId: create-or-update-a-customer
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                customers:
                  type: array
                  items:
                    properties:
                      id:
                        type: string
                        description: The unique ID of the customer in your system.
                      teamId:
                        type: string
                        description: If a teamId is not provided, then the teamId will fall back onto the teamId provided by the API key.
                      yearOfBirth:
                        type: integer
                        description: Deprecated. Legacy field.
                        format: int32
                      gender:
                        type: string
                        description: 'Deprecated. Legacy field.Accepted values:      Male, Female, Other'
                      suburb:
                        type: string
                        description: Deprecated. Legacy field.
                      postcode:
                        type: string
                        description: Deprecated. Legacy field.
                      targetingData:
                        type: array
                        description: Deprecated. Legacy field.
                        items:
                          properties:
                            key:
                              type: string
                              description: Arbitrary key:value pairing set by the retailer.
                              default: value
                          type: object
                    required:
                    - id
                    type: object
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n    \"customers\": [\n        {\n            \"targetingData\": {\n                \"string\": \"string\"\n            },\n            \"gender\": \"string\",\n            \"teamId\": \"string\",\n            \"postcode\": \"string\",\n            \"suburb\": \"string\",\n          \"id\": \"string, \n\t\t\t\t\t\"segmentIds\": [\n                \"string\", \"string\"\n            ],\n            \"yearOfBirth\": \"integer\"\n        }\n    ]\n}\n"
        '400':
          description: '400'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n    \"additionalInfo\": [\n        {\n            \"code\": \"string\",\n            \"message\": \"string\"\n        }\n    ],\n    \"message\": \"string\"\n}"
              schema:
                type: object
                properties:
                  additionalInfo:
                    type: array
                    items:
                      type: object
                      properties:
                        code:
                          type: string
                          example: string
                        message:
                          type: string
                          example: string
                  message:
                    type: string
                    example: string
        '401':
          description: '401'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '403':
          description: '403'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '404':
          description: '404'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '429':
          description: '429'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '500':
          description: '500'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '502':
          description: '502'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '503':
          description: '503'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '504':
          description: '504'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
      deprecated: false
      tags:
      - Customers
    get:
      summary: Retrieve a list of customers
      description: ''
      operationId: retrieve-a-list-of-customers
      parameters:
      - name: limit
        in: query
        schema:
          type: integer
          format: int32
      - name: skip
        in: query
        schema:
          type: string
      - name: customerIds
        in: query
        schema:
          type: array
          items:
            type: string
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: "\n    \"customers\": [\n        { \n           \"targetingData\": {\n                \"string\": \"string\"\n            },\n           \"id\": \"string\",\n            \"teamId\": \"string\",\n            \"yearOfBirth\": \"integer\",\n            \"gender\": \"string\",\n            \"suburb\": \"string\",\n          \"postcode\": \"string\",\n\t\t\t\t\t \"segmentIds\": [\n                \"string\"\n            ]\n\n        }\n    ]\n}"
        '400':
          description: '400'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n    \"additionalInfo\": [\n        {\n            \"code\": \"string\",\n            \"message\": \"string\"\n        }\n    ],\n    \"message\": \"string\"\n}"
              schema:
                type: object
                properties:
                  additionalInfo:
                    type: array
                    items:
                      type: object
                      properties:
                        code:
                          type: string
                          example: string
                        message:
                          type: string
                          example: string
                  message:
                    type: string
                    example: string
        '401':
          description: '401'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '403':
          description: '403'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '404':
          description: '404'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '429':
          description: '429'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '500':
          description: '500'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '502':
          description: '502'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '503':
          description: '503'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '504':
          description: '504'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
      deprecated: false
      tags:
      - Customers
  /customers/{customerId}:
    get:
      summary: Retrieve a customer
      description: ''
      operationId: retrieve-a-customer
      parameters:
      - name: customerId
        in: path
        schema:
          type: string
        required: true
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: "{ \n           \"targetingData\": {\n                \"string\": \"string\"\n            },\n           \"id\": \"string\",\n            \"teamId\": \"string\",\n            \"yearOfBirth\": \"integer\",\n            \"gender\": \"string\",\n            \"suburb\": \"string\",\n              \"postcode\": \"string\",\t\t\t\t\t\n\t\t\t\t\t\t \"segmentIds\": [\n                \"string\"\n            ]\n\n}"
              schema:
                type: object
                properties:
                  targetingData:
                    type: object
                    properties:
                      string:
                        type: string
                        example: string
                  id:
                    type: string
                    example: string
                  teamId:
                    type: string
                    example: string
                  yearOfBirth:
                    type: string
                    example: integer
                  gender:
                    type: string
                    example: string
                  suburb:
                    type: string
                    example: string
                  postcode:
                    type: string
                    example: string
                  segmentIds:
                    type: array
                    items:
                      type: string
                      example: string
        '400':
          description: '400'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n    \"additionalInfo\": [\n        {\n            \"code\": \"string\",\n            \"message\": \"string\"\n        }\n    ],\n    \"message\": \"string\"\n}"
              schema:
                type: object
                properties:
                  additionalInfo:
                    type: array
                    items:
                      type: object
                      properties:
                        code:
                          type: string
                          example: string
                        message:
                          type: string
                          example: string
                  message:
                    type: string
                    example: string
        '401':
          description: '401'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '403':
          description: '403'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '404':
          description: '404'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '429':
          description: '429'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '500':
          description: '500'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '502':
          description: '502'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '503':
          description: '503'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '504':
          description: '504'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
      deprecated: false
      tags:
      - Customers
  /customers/manage-segments:
    post:
      summary: Manage customer-segment linkage
      description: ''
      operationId: manage-customers-and-segments
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                teamId:
                  type: string
                  description: The retailer teamId for the retailer the customer is within.
                customerId:
                  type: string
                  description: The unique identifier of the customer you are managing segments for.
                segments:
                  type: array
                  items:
                    properties:
                      segmentIds:
                        type: array
                        description: The list of Segment IDs the customer has access to.
                        default: []
                        items:
                          type: string
                    type: object
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: ''
        '400':
          description: '400'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n    \"additionalInfo\": [\n        {\n            \"code\": \"string\",\n            \"message\": \"string\"\n        }\n    ],\n    \"message\": \"string\"\n}"
              schema:
                type: object
                properties:
                  additionalInfo:
                    type: array
                    items:
                      type: object
                      properties:
                        code:
                          type: string
                          example: string
                        message:
                          type: string
                          example: string
                  message:
                    type: string
                    example: string
        '401':
          description: '401'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '403':
          description: '403'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '404':
          description: '404'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '429':
          description: '429'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '500':
          description: '500'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '502':
          description: '502'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '503':
          description: '503'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
        '504':
          description: '504'
          content:
            text/plain:
              examples:
                Result:
                  value: ''
      deprecated: false
      tags:
      - Customers
components:
  securitySchemes:
    sec0:
      type: apiKey
      name: Authorization
      in: header
      x-bearer-format: basic
      x-default: YOUR_API_KEY