LoyaltyLion Customers API

openapi: 3.0.3
info:
  title: LoyaltyLion Activities Customers API
  description: The LoyaltyLion v2 REST API powers an e-commerce loyalty and rewards program. It is split into an Admin API - for moving data in and out of LoyaltyLion, such as retrieving customers and transactions, tracking orders, and adjusting points - and a Headless API for building custom shopper-facing loyalty experiences in web, mobile, and POS applications. Requests authenticate with a Program API key passed as a Bearer token in the Authorization header (with scoped access such as read_customers), or the deprecated token/secret pair over HTTP Basic auth (supported until 2027-01-10). Customers are addressed by the merchant_id you use in your own platform. All endpoints share a rate limit of 20 requests per second unless otherwise stated. This document grounds the core Customers, Activities, Points, Rewards, and Redemptions resources; some verbs are modeled from the documented resource index and should be verified against the live reference.
  version: '2.0'
  contact:
    name: LoyaltyLion
    url: https://developers.loyaltylion.com
servers:
- url: https://api.loyaltylion.com/v2
  description: LoyaltyLion v2 API
security:
- bearerAuth: []
- basicAuth: []
tags:
- name: Customers
  description: Loyalty customer profiles, points balances, tiers, and referrals.
paths:
  /customers:
    get:
      operationId: listCustomers
      tags:
      - Customers
      summary: List customers
      description: Lists loyalty customers. Supports cursor pagination and filtering by email substring and created/updated date ranges. Requires a key with the read_customers scope.
      parameters:
      - name: since_id
        in: query
        schema:
          type: integer
        description: Return resources with an ID greater than this value.
      - name: limit
        in: query
        schema:
          type: integer
          minimum: 1
          maximum: 500
          default: 100
        description: Maximum results per request.
      - name: cursor
        in: query
        schema:
          type: string
        description: Pagination cursor from a previous response.
      - name: sort_field
        in: query
        schema:
          type: string
          enum:
          - id
          - updated_at
      - name: sort_direction
        in: query
        schema:
          type: string
          enum:
          - asc
          - desc
      - name: email
        in: query
        schema:
          type: string
        description: Filter by email substring match.
      - name: created_at_min
        in: query
        schema:
          type: string
          format: date-time
      - name: created_at_max
        in: query
        schema:
          type: string
          format: date-time
      - name: updated_at_min
        in: query
        schema:
          type: string
          format: date-time
      - name: updated_at_max
        in: query
        schema:
          type: string
          format: date-time
      responses:
        '200':
          description: A paginated list of customers.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Customer'
                  cursors:
                    $ref: '#/components/schemas/Cursors'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /customers/{merchant_id}:
    parameters:
    - $ref: '#/components/parameters/MerchantId'
    put:
      operationId: updateCustomer
      tags:
      - Customers
      summary: Update a customer
      description: Updates a loyalty customer, for example setting their date of birth or other profile attributes. Verify the exact verb against the live reference.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CustomerInput'
      responses:
        '200':
          description: The updated customer.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Customer'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  responses:
    NotFound:
      description: The requested resource was not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Authentication failed or the API key lacks the required scope.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    Error:
      type: object
      properties:
        error:
          type: string
        message:
          type: string
    Cursors:
      type: object
      properties:
        next:
          type: string
          nullable: true
        previous:
          type: string
          nullable: true
    CustomerInput:
      type: object
      properties:
        date_of_birth:
          type: string
          format: date
        merchant_id:
          type: string
    Customer:
      type: object
      properties:
        id:
          type: integer
        merchant_id:
          type: string
        email:
          type: string
          format: email
        points_approved:
          type: integer
        points_pending:
          type: integer
        points_spent:
          type: integer
        loyalty_tier_membership:
          type: object
          additionalProperties: true
        referral_url:
          type: string
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
  parameters:
    MerchantId:
      name: merchant_id
      in: path
      required: true
      schema:
        type: string
      description: The ID of the customer in your platform or e-commerce store.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Program API key passed as a Bearer token in the Authorization header.
    basicAuth:
      type: http
      scheme: basic
      description: Deprecated token (username) and secret (password) over HTTP Basic auth, supported until 2027-01-10.