---
updatedAt: 2026-06-22T19:19:50.000Z
---

# Supported carriers

This API retrieves all carriers supported by Ship With Walmart.

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# OpenAPI definition

```json
{
  "openapi": "3.0.1",
  "info": {
    "title": "Ship With Walmart",
    "version": "1.0",
    "description": "The Ship With Walmart (SWW) APIs enables walmart.com sellers to buy shipping at competitively discounted rates directly from Walmart to ship their goods to US customers."
  },
  "x-readme": {
    "samples-languages": [
      "shell"
    ],
    "proxy-enabled": false
  },
  "servers": [
    {
      "url": "https://marketplace.walmartapis.com",
      "description": "Production URL"
    },
    {
      "url": "https://sandbox.walmartapis.com",
      "description": "Sandbox URL"
    }
  ],
  "security": [
    {
      "accessToken": []
    }
  ],
  "paths": {
    "/v3/shipping/labels/carriers": {
      "get": {
        "tags": [
          "Ship With Walmart"
        ],
        "summary": "Supported carriers",
        "description": "This API retrieves all carriers supported by Ship With Walmart.",
        "operationId": "getCarriers",
        "x-stability": "beta",
        "security": [
          {
            "accessToken": []
          }
        ],
        "parameters": [
          {
            "in": "header",
            "name": "WM_CONSUMER.CHANNEL.TYPE",
            "description": "A unique ID to track the consumer request by channel. Use the Consumer Channel Type received during onboarding",
            "required": false,
            "schema": {
              "type": "string"
            }
          },
          {
            "in": "header",
            "name": "WM_SEC.ACCESS_TOKEN",
            "description": "Access token obtained from the Token API. This is required for authenticating requests to Walmart Marketplace APIs.\n\n<b style=\"color: green;\">Market availability: Global</b>",
            "required": true,
            "schema": {
              "type": "string"
            },
            "example": "eyJraWQiOiIzZjVhYTFmNS1hYWE5LTQzM....."
          },
          {
            "in": "header",
            "name": "WM_QOS.CORRELATION_ID",
            "description": "A unique ID which identifies each API call and is used to track and debug issues. Use a randomly generated GUID for this ID.",
            "required": true,
            "schema": {
              "type": "string"
            },
            "example": "b3261d2d-028a-4ef7-8602-633c23200af6"
          },
          {
            "in": "header",
            "name": "WM_SVC.NAME",
            "description": "Walmart Service Name",
            "required": true,
            "schema": {
              "type": "string"
            },
            "example": "Walmart Service Name"
          },
          {
            "in": "header",
            "name": "Accept",
            "description": "The only supported response media type is application/json.",
            "required": true,
            "schema": {
              "type": "string"
            },
            "example": "application/json"
          }
        ],
        "responses": {
          "200": {
            "description": "Successful Operation",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "carriers": {
                      "type": "array",
                      "description": "carriers",
                      "items": {
                        "type": "object",
                        "properties": {
                          "carrierId": {
                            "type": "string",
                            "description": "The carrier ID. A unique identifier for the carrier."
                          },
                          "shortName": {
                            "type": "string",
                            "description": "The carrier short name."
                          },
                          "carrierName": {
                            "type": "string",
                            "description": "The carrier name."
                          }
                        },
                        "description": "carriers"
                      }
                    },
                    "errors": {
                      "type": "array",
                      "description": "List of error details describing why the request failed.",
                      "items": {
                        "type": "object",
                        "properties": {
                          "info": {
                            "type": "string",
                            "description": "Additional contextual information about the error."
                          },
                          "code": {
                            "type": "string",
                            "description": "Error code identifying the failure reason."
                          },
                          "field": {
                            "type": "string",
                            "description": "Name of the request field that triggered this error, when applicable."
                          },
                          "description": {
                            "type": "string",
                            "description": "Human-readable description of the error."
                          },
                          "severity": {
                            "type": "string",
                            "description": "Severity level of the error.",
                            "enum": [
                              "EMERG",
                              "ALERT",
                              "CRITICAL",
                              "ERROR",
                              "WARN"
                            ]
                          },
                          "category": {
                            "type": "string",
                            "description": "Category classifying the origin of the error.",
                            "enum": [
                              "APPLICATION",
                              "SERVICE",
                              "REQUEST",
                              "DATA"
                            ]
                          },
                          "httpStatus": {
                            "type": "integer",
                            "description": "HTTP status code associated with this error.",
                            "format": "int32"
                          }
                        },
                        "description": "Error detail object."
                      }
                    }
                  }
                },
                "example": {
                  "carriers": [
                    {
                      "carrierId": "1000",
                      "shortName": "FedEx",
                      "carrierName": "FedEx"
                    }
                  ]
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "securitySchemes": {
      "accessToken": {
        "type": "apiKey",
        "in": "header",
        "name": "WM_SEC.ACCESS_TOKEN",
        "description": "Access token from POST /v3/token (client_credentials grant)."
      }
    }
  }
}
```