instacart Last Mile Delivery API

openapi: 3.2.0
info:
  title: Instacart Connect Fulfillment Last Mile Delivery API
  description: The Instacart Connect Fulfillment API enables retailers to integrate Instacart fulfillment capabilities directly into their e-commerce sites. It combines grocery, delivery, and pickup functionality into a single API, allowing retailers to offer full-service shopping where Instacart shoppers pick items and suggest replacements, as well as same-day or scheduled delivery and pickup options. Key endpoints include finding stores that offer delivery, listing available time slots, previewing service options, and creating delivery or pickup orders.
  version: '2.0'
  contact:
    name: Instacart Connect Support
    url: https://docs.instacart.com/connect/fulfillment/
  termsOfService: https://www.instacart.com/terms
servers:
- url: https://connect.instacart.com
  description: Production Server
security:
- bearerAuth: []
tags:
- name: Last Mile Delivery
  description: Endpoints for last mile delivery where items are pre-packed and only require delivery from the store to the customer.
paths:
  /v2/fulfillment/stores/last_mile:
    post:
      operationId: findLastMileStores
      summary: Find stores offering last mile delivery
      description: Returns an array of stores that offer last mile delivery for the customer's location. Last mile delivery is for pre-packed orders that only require transportation from the store to the customer.
      tags:
      - Last Mile Delivery
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/FindStoresRequest'
      responses:
        '200':
          description: List of stores offering last mile delivery
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StoresResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /v2/fulfillment/lastmile/users/{user_id}/service_options:
    post:
      operationId: previewLastMileServiceOptions
      summary: Reserve a time slot for last mile delivery
      description: Previews and reserves a time slot for a last mile delivery order. Used to secure a delivery window before creating the order.
      tags:
      - Last Mile Delivery
      parameters:
      - $ref: '#/components/parameters/userId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PreviewServiceOptionsRequest'
      responses:
        '200':
          description: Service options for last mile delivery
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ServiceOptionsResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /v2/fulfillment/lastmile/users/{user_id}/orders:
    post:
      operationId: createLastMileOrder
      summary: Create a last mile delivery order
      description: Creates a last mile delivery order for a previously reserved time slot. Last mile orders are for pre-packed items that require only delivery from the store to the customer location.
      tags:
      - Last Mile Delivery
      parameters:
      - $ref: '#/components/parameters/userId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateOrderRequest'
      responses:
        '200':
          description: Last mile delivery order created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/OrderResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /v2/fulfillment/lastmile/orders/{order_id}/staged:
    post:
      operationId: stageLastMileOrder
      summary: Stage a last mile delivery order
      description: Marks a last mile delivery order as staged and ready for pickup by the delivery driver. This should be called when the order items are packed and ready at the store.
      tags:
      - Last Mile Delivery
      parameters:
      - $ref: '#/components/parameters/orderId'
      responses:
        '200':
          description: Order staged successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/OrderResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Order not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    CreateOrderRequest:
      type: object
      required:
      - hold_id
      properties:
        hold_id:
          type: string
          description: The identifier of the time slot hold from the reserve step.
        cart:
          type: object
          description: The finalized cart for the order.
          properties:
            items:
              type: array
              description: The items to include in the order.
              items:
                $ref: '#/components/schemas/CartItem'
        delivery_address:
          type: object
          description: The delivery address for the order.
          properties:
            address_line_1:
              type: string
              description: The street address.
            address_line_2:
              type: string
              description: Additional address information.
            city:
              type: string
              description: The city.
            state:
              type: string
              description: The state or province.
            postal_code:
              type: string
              description: The postal or ZIP code.
        delivery_instructions:
          type: string
          description: Special instructions for the delivery driver.
    StoresResponse:
      type: object
      properties:
        stores:
          type: array
          description: An array of stores offering the requested fulfillment type, sorted by distance with the closest store first.
          items:
            $ref: '#/components/schemas/Store'
    FindStoresRequest:
      type: object
      properties:
        address_line_1:
          type: string
          description: The street address of the customer's location.
        address_line_2:
          type: string
          description: Additional address information such as apartment or suite number.
        city:
          type: string
          description: The city of the customer's location.
        state:
          type: string
          description: The state or province of the customer's location.
        postal_code:
          type: string
          description: The postal or ZIP code of the customer's location.
        latitude:
          type: number
          format: double
          description: The latitude coordinate of the customer's location.
        longitude:
          type: number
          format: double
          description: The longitude coordinate of the customer's location.
    ServiceOption:
      type: object
      properties:
        id:
          type: string
          description: The unique identifier for the service option.
        date:
          type: string
          format: date
          description: The date of the service option.
        window_starts_at:
          type: string
          format: date-time
          description: The start time of the delivery or pickup window.
        window_ends_at:
          type: string
          format: date-time
          description: The end time of the delivery or pickup window.
        fulfillment_type:
          type: string
          enum:
          - delivery
          - pickup
          - last_mile
          description: The type of fulfillment for this service option.
    PreviewServiceOptionsRequest:
      type: object
      properties:
        store_id:
          type: string
          description: The unique identifier of the store to preview service options for.
        address:
          type: object
          description: The delivery or pickup address.
          properties:
            address_line_1:
              type: string
              description: The street address.
            address_line_2:
              type: string
              description: Additional address information.
            city:
              type: string
              description: The city.
            state:
              type: string
              description: The state or province.
            postal_code:
              type: string
              description: The postal or ZIP code.
    CartItem:
      type: object
      properties:
        upc:
          type: string
          description: The Universal Product Code of the item.
        quantity:
          type: integer
          description: The quantity of the item.
          minimum: 1
        product_id:
          type: string
          description: The Instacart product identifier.
    OrderItem:
      type: object
      properties:
        product_id:
          type: string
          description: The Instacart product identifier.
        upc:
          type: string
          description: The Universal Product Code of the item.
        name:
          type: string
          description: The name of the product.
        quantity:
          type: integer
          description: The ordered quantity.
        status:
          type: string
          enum:
          - pending
          - found
          - replaced
          - refunded
          description: The current status of the item in the order.
    Store:
      type: object
      properties:
        id:
          type: string
          description: The unique identifier for the store.
        name:
          type: string
          description: The name of the store.
        address:
          type: object
          description: The physical address of the store.
          properties:
            address_line_1:
              type: string
              description: The street address.
            city:
              type: string
              description: The city.
            state:
              type: string
              description: The state or province.
            postal_code:
              type: string
              description: The postal or ZIP code.
        distance:
          type: number
          format: double
          description: The distance from the customer's location to the store.
    ServiceOptionsResponse:
      type: object
      properties:
        service_options:
          type: array
          description: Available service option time slots for the requested fulfillment type.
          items:
            $ref: '#/components/schemas/ServiceOption'
    Error:
      type: object
      properties:
        error:
          type: string
          description: A human-readable error message.
        status:
          type: integer
          description: The HTTP status code.
    OrderResponse:
      type: object
      properties:
        id:
          type: string
          description: The unique identifier for the order.
        status:
          type: string
          enum:
          - brand_new
          - acknowledged
          - picking
          - staging
          - delivering
          - delivered
          - canceled
          - rescheduled
          description: The current status of the order.
        created_at:
          type: string
          format: date-time
          description: The timestamp when the order was created.
        fulfillment_type:
          type: string
          enum:
          - delivery
          - pickup
          - last_mile
          description: The fulfillment type of the order.
        service_option:
          $ref: '#/components/schemas/ServiceOption'
        store:
          $ref: '#/components/schemas/Store'
        items:
          type: array
          description: The items included in the order.
          items:
            $ref: '#/components/schemas/OrderItem'
  parameters:
    userId:
      name: user_id
      in: path
      required: true
      description: The unique identifier for the user in the retailer's system.
      schema:
        type: string
    orderId:
      name: order_id
      in: path
      required: true
      description: The unique identifier for the order.
      schema:
        type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: OAuth 2.0 Bearer token obtained from the token endpoint. Valid for 24 hours.
externalDocs:
  description: Instacart Connect Fulfillment API Documentation
  url: https://docs.instacart.com/connect/fulfillment/