Klaviyo
Klaviyo API

The Klaviyo API provides programmatic access to profiles, events, lists, segments, campaigns, flows, templates, catalogs, coupons, metrics, reviews, forms, images, tags, webhooks, tracking settings, custom objects, conversations, web feeds, data privacy, and reporting. It is used to build personalized customer experiences across email, SMS, mobile push, and other channels for ecommerce brands.
Documentation GitHub OpenAPI
OpenAPI Specification

{
  "openapi": "3.0.2",
  "info": {
    "title": "Klaviyo API",
    "version": "2026-04-15",
    "description": "The Klaviyo REST API. Please visit https://developers.klaviyo.com for more details.",
    "contact": {
      "name": "Klaviyo Developer Experience Team",
      "email": "[email protected]",
      "url": "https://developers.klaviyo.com"
    },
    "termsOfService": "https://www.klaviyo.com/legal/api-terms",
    "license": {
      "name": "License",
      "url": "https://www.klaviyo.com/legal"
    }
  },
  "servers": [
    {
      "url": "https://a.klaviyo.com",
      "description": "Production"
    }
  ],
  "paths": {
    "/api/accounts": {
      "get": {
        "operationId": "get_accounts",
        "summary": "Get Accounts",
        "description": "Retrieve the account(s) associated with a given private API key. This will return 1 account object within the array.\n\nYou can use this to retrieve account-specific data (contact information, timezone, currency, Public API key, etc.) or test if a Private API Key belongs to the correct account prior to performing subsequent actions with the API.<br><br>*Rate limits*:<br>Burst: `1/s`<br>Steady: `15/m`\n\n**Scopes:**\n`accounts:read`",
        "parameters": [
          {
            "name": "fields[account]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets",
            "required": false,
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "contact_information",
                  "contact_information.default_sender_email",
                  "contact_information.default_sender_name",
                  "contact_information.organization_name",
                  "contact_information.street_address",
                  "contact_information.street_address.address1",
                  "contact_information.street_address.address2",
                  "contact_information.street_address.city",
                  "contact_information.street_address.country",
                  "contact_information.street_address.region",
                  "contact_information.street_address.zip",
                  "contact_information.website_url",
                  "industry",
                  "locale",
                  "preferred_currency",
                  "public_api_key",
                  "test_account",
                  "timezone"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "revision",
            "in": "header",
            "description": "API endpoint revision (format: YYYY-MM-DD[.suffix])",
            "required": true,
            "schema": {
              "type": "string",
              "default": "2026-04-15"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Success",
            "content": {
              "application/vnd.api+json": {
                "schema": {
                  "$ref": "#/components/schemas/GetAccountResponseCollection"
                }
              }
            }
          },
          "4XX": {
            "$ref": "#/components/responses/ClientError"
          },
          "5XX": {
            "$ref": "#/components/responses/ServerError"
          }
        },
        "tags": [
          "Accounts"
        ],
        "x-klaviyo-pre-release": "None",
        "x-klaviyo-ratelimit": {
          "burst": "1/s",
          "steady": "15/m"
        },
        "x-klaviyo-scopes": [
          "accounts:read"
        ]
      }
    },
    "/api/accounts/{id}": {
      "get": {
        "operationId": "get_account",
        "summary": "Get Account",
        "description": "Retrieve a single account object by its account ID. You can only request the account by which the private API key was generated.<br><br>*Rate limits*:<br>Burst: `1/s`<br>Steady: `15/m`\n\n**Scopes:**\n`accounts:read`",
        "parameters": [
          {
            "name": "id",
            "in": "path",
            "description": "The ID of the account",
            "required": true,
            "schema": {
              "description": "The ID of the account",
              "type": "string",
              "example": "AbC123"
            }
          },
          {
            "name": "fields[account]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets",
            "required": false,
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "contact_information",
                  "contact_information.default_sender_email",
                  "contact_information.default_sender_name",
                  "contact_information.organization_name",
                  "contact_information.street_address",
                  "contact_information.street_address.address1",
                  "contact_information.street_address.address2",
                  "contact_information.street_address.city",
                  "contact_information.street_address.country",
                  "contact_information.street_address.region",
                  "contact_information.street_address.zip",
                  "contact_information.website_url",
                  "industry",
                  "locale",
                  "preferred_currency",
                  "public_api_key",
                  "test_account",
                  "timezone"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "revision",
            "in": "header",
            "description": "API endpoint revision (format: YYYY-MM-DD[.suffix])",
            "required": true,
            "schema": {
              "type": "string",
              "default": "2026-04-15"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Success",
            "content": {
              "application/vnd.api+json": {
                "schema": {
                  "$ref": "#/components/schemas/GetAccountResponse"
                }
              }
            }
          },
          "4XX": {
            "$ref": "#/components/responses/ClientError"
          },
          "5XX": {
            "$ref": "#/components/responses/ServerError"
          }
        },
        "tags": [
          "Accounts"
        ],
        "x-klaviyo-pre-release": "None",
        "x-klaviyo-ratelimit": {
          "burst": "1/s",
          "steady": "15/m"
        },
        "x-klaviyo-scopes": [
          "accounts:read"
        ]
      }
    },
    "/api/campaigns": {
      "get": {
        "operationId": "get_campaigns",
        "summary": "Get Campaigns",
        "description": "Returns some or all campaigns based on filters.\n\nA channel filter is required to list campaigns. Please provide either:\n`?filter=equals(messages.channel,'email')` to list email campaigns, or\n`?filter=equals(messages.channel,'sms')` to list SMS campaigns.\n`?filter=equals(messages.channel,'mobile_push')` to list mobile push campaigns.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m`\n\n**Scopes:**\n`campaigns:read`",
        "parameters": [
          {
            "name": "fields[campaign-message]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets",
            "required": false,
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "created_at",
                  "definition",
                  "definition.channel",
                  "definition.content",
                  "definition.content.action_buttons",
                  "definition.content.bcc_email",
                  "definition.content.body",
                  "definition.content.cc_email",
                  "definition.content.dynamic_image",
                  "definition.content.from_email",
                  "definition.content.from_label",
                  "definition.content.media_url",
                  "definition.content.preview_text",
                  "definition.content.reply_to_email",
                  "definition.content.subject",
                  "definition.content.title",
                  "definition.kv_pairs",
                  "definition.label",
                  "definition.notification_type",
                  "definition.options",
                  "definition.options.badge",
                  "definition.options.badge.badge_options",
                  "definition.options.badge.badge_options.badge_config",
                  "definition.options.badge.badge_options.set_from_property",
                  "definition.options.badge.badge_options.value",
                  "definition.options.badge.display",
                  "definition.options.on_open",
                  "definition.options.on_open.android_deep_link",
                  "definition.options.on_open.ios_deep_link",
                  "definition.options.on_open.type",
                  "definition.options.play_sound",
                  "definition.render_options",
                  "definition.render_options.add_info_link",
                  "definition.render_options.add_opt_out_language",
                  "definition.render_options.add_org_prefix",
                  "definition.render_options.shorten_links",
                  "send_times",
                  "updated_at"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "fields[campaign]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets",
            "required": false,
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "archived",
                  "audiences",
                  "audiences.excluded",
                  "audiences.included",
                  "created_at",
                  "name",
                  "scheduled_at",
                  "send_options",
                  "send_options.use_smart_sending",
                  "send_strategy",
                  "send_strategy.date",
                  "send_strategy.datetime",
                  "send_strategy.method",
                  "send_strategy.options",
                  "send_strategy.options.is_local",
                  "send_strategy.options.send_past_recipients_immediately",
                  "send_strategy.throttle_percentage",
                  "send_time",
                  "status",
                  "tracking_options",
                  "tracking_options.add_tracking_params",
                  "tracking_options.custom_tracking_params",
                  "tracking_options.is_tracking_clicks",
                  "tracking_options.is_tracking_opens",
                  "updated_at"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "fields[tag]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets",
            "required": false,
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "name"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "filter",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#filtering<br>Allowed field(s)/operator(s):<br>`id`: `any`<br>`messages.channel`: `equals`<br>`name`: `contains`<br>`status`: `any`, `equals`<br>`archived`: `equals`<br>`created_at`: `greater-or-equal`, `greater-than`, `less-or-equal`, `less-than`<br>`scheduled_at`: `greater-or-equal`, `greater-than`, `less-or-equal`, `less-than`<br>`updated_at`: `greater-or-equal`, `greater-than`, `less-or-equal`, `less-than`",
            "required": true,
            "schema": {
              "type": "string",
              "example": "equals(messages.channel,'email')"
            }
          },
          {
            "name": "include",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#relationships",
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "campaign-messages",
                  "tags"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "page[cursor]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#pagination",
            "required": false,
            "schema": {
              "type": "string"
            }
          },
          {
            "name": "page[size]",
            "in": "query",
            "description": "Default: 100. Min: 1. Max: 100.",
            "required": false,
            "schema": {
              "type": "integer",
              "default": 100,
              "maximum": 100,
              "minimum": 1
            }
          },
          {
            "name": "sort",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sorting",
            "schema": {
              "type": "string",
              "enum": [
                "created_at",
                "-created_at",
                "id",
                "-id",
                "name",
                "-name",
                "scheduled_at",
                "-scheduled_at",
                "updated_at",
                "-updated_at"
              ]
            }
          },
          {
            "name": "revision",
            "in": "header",
            "description": "API endpoint revision (format: YYYY-MM-DD[.suffix])",
            "required": true,
            "schema": {
              "type": "string",
              "default": "2026-04-15"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Success",
            "content": {
              "application/vnd.api+json": {
                "schema": {
                  "$ref": "#/components/schemas/GetCampaignResponseCollectionCompoundDocument"
                }
              }
            }
          },
          "4XX": {
            "$ref": "#/components/responses/ClientError"
          },
          "5XX": {
            "$ref": "#/components/responses/ServerError"
          }
        },
        "tags": [
          "Campaigns"
        ],
        "x-klaviyo-pre-release": "None",
        "x-klaviyo-ratelimit": {
          "burst": "10/s",
          "steady": "150/m"
        },
        "x-klaviyo-scopes": [
          "campaigns:read"
        ]
      },
      "post": {
        "operationId": "create_campaign",
        "summary": "Create Campaign",
        "description": "Creates a campaign given a set of parameters, then returns it.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m`\n\n**Scopes:**\n`campaigns:write`",
        "parameters": [
          {
            "name": "revision",
            "in": "header",
            "description": "API endpoint revision (format: YYYY-MM-DD[.suffix])",
            "required": true,
            "schema": {
              "type": "string",
              "default": "2026-04-15"
            }
          }
        ],
        "requestBody": {
          "description": "Creates a campaign from parameters",
          "required": true,
          "content": {
            "application/vnd.api+json": {
              "schema": {
                "$ref": "#/components/schemas/CampaignCreateQuery"
              }
            }
          }
        },
        "responses": {
          "201": {
            "description": "Success",
            "content": {
              "application/vnd.api+json": {
                "schema": {
                  "$ref": "#/components/schemas/PostCampaignResponse"
                }
              }
            }
          },
          "4XX": {
            "$ref": "#/components/responses/ClientError"
          },
          "5XX": {
            "$ref": "#/components/responses/ServerError"
          }
        },
        "tags": [
          "Campaigns"
        ],
        "x-klaviyo-pre-release": "None",
        "x-klaviyo-ratelimit": {
          "burst": "10/s",
          "steady": "150/m"
        },
        "x-klaviyo-scopes": [
          "campaigns:write"
        ]
      }
    },
    "/api/campaigns/{id}": {
      "get": {
        "operationId": "get_campaign",
        "summary": "Get Campaign",
        "description": "Returns a specific campaign based on a required id.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m`\n\n**Scopes:**\n`campaigns:read`",
        "parameters": [
          {
            "name": "id",
            "in": "path",
            "description": "The campaign ID to be retrieved",
            "required": true,
            "schema": {
              "description": "The campaign ID to be retrieved",
              "type": "string"
            }
          },
          {
            "name": "fields[campaign-message]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets",
            "required": false,
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "created_at",
                  "definition",
                  "definition.channel",
                  "definition.content",
                  "definition.content.action_buttons",
                  "definition.content.bcc_email",
                  "definition.content.body",
                  "definition.content.cc_email",
                  "definition.content.dynamic_image",
                  "definition.content.from_email",
                  "definition.content.from_label",
                  "definition.content.media_url",
                  "definition.content.preview_text",
                  "definition.content.reply_to_email",
                  "definition.content.subject",
                  "definition.content.title",
                  "definition.kv_pairs",
                  "definition.label",
                  "definition.notification_type",
                  "definition.options",
                  "definition.options.badge",
                  "definition.options.badge.badge_options",
                  "definition.options.badge.badge_options.badge_config",
                  "definition.options.badge.badge_options.set_from_property",
                  "definition.options.badge.badge_options.value",
                  "definition.options.badge.display",
                  "definition.options.on_open",
                  "definition.options.on_open.android_deep_link",
                  "definition.options.on_open.ios_deep_link",
                  "definition.options.on_open.type",
                  "definition.options.play_sound",
                  "definition.render_options",
                  "definition.render_options.add_info_link",
                  "definition.render_options.add_opt_out_language",
                  "definition.render_options.add_org_prefix",
                  "definition.render_options.shorten_links",
                  "send_times",
                  "updated_at"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "fields[campaign]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets",
            "required": false,
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "archived",
                  "audiences",
                  "audiences.excluded",
                  "audiences.included",
                  "created_at",
                  "name",
                  "scheduled_at",
                  "send_options",
                  "send_options.use_smart_sending",
                  "send_strategy",
                  "send_strategy.date",
                  "send_strategy.datetime",
                  "send_strategy.method",
                  "send_strategy.options",
                  "send_strategy.options.is_local",
                  "send_strategy.options.send_past_recipients_immediately",
                  "send_strategy.throttle_percentage",
                  "send_time",
                  "status",
                  "tracking_options",
                  "tracking_options.add_tracking_params",
                  "tracking_options.custom_tracking_params",
                  "tracking_options.is_tracking_clicks",
                  "tracking_options.is_tracking_opens",
                  "updated_at"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "fields[tag]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets",
            "required": false,
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "name"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "include",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#relationships",
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "campaign-messages",
                  "tags"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "revision",
            "in": "header",
            "description": "API endpoint revision (format: YYYY-MM-DD[.suffix])",
            "required": true,
            "schema": {
              "type": "string",
              "default": "2026-04-15"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Success",
            "content": {
              "application/vnd.api+json": {
                "schema": {
                  "$ref": "#/components/schemas/GetCampaignResponseCompoundDocument"
                }
              }
            }
          },
          "4XX": {
            "$ref": "#/components/responses/ClientError"
          },
          "5XX": {
            "$ref": "#/components/responses/ServerError"
          }
        },
        "tags": [
          "Campaigns"
        ],
        "x-klaviyo-pre-release": "None",
        "x-klaviyo-ratelimit": {
          "burst": "10/s",
          "steady": "150/m"
        },
        "x-klaviyo-scopes": [
          "campaigns:read"
        ]
      },
      "patch": {
        "operationId": "update_campaign",
        "summary": "Update Campaign",
        "description": "Update a campaign with the given campaign ID.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m`\n\n**Scopes:**\n`campaigns:write`",
        "parameters": [
          {
            "name": "id",
            "in": "path",
            "description": "The campaign ID to be retrieved",
            "required": true,
            "schema": {
              "description": "The campaign ID to be retrieved",
              "type": "string"
            }
          },
          {
            "name": "revision",
            "in": "header",
            "description": "API endpoint revision (format: YYYY-MM-DD[.suffix])",
            "required": true,
            "schema": {
              "type": "string",
              "default": "2026-04-15"
            }
          }
        ],
        "requestBody": {
          "description": "Update a campaign and return it",
          "required": true,
          "content": {
            "application/vnd.api+json": {
              "schema": {
                "$ref": "#/components/schemas/CampaignPartialUpdateQuery"
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "Success",
            "content": {
              "application/vnd.api+json": {
                "schema": {
                  "$ref": "#/components/schemas/PatchCampaignResponse"
                }
              }
            }
          },
          "4XX": {
            "$ref": "#/components/responses/ClientError"
          },
          "5XX": {
            "$ref": "#/components/responses/ServerError"
          }
        },
        "tags": [
          "Campaigns"
        ],
        "x-klaviyo-pre-release": "None",
        "x-klaviyo-ratelimit": {
          "burst": "10/s",
          "steady": "150/m"
        },
        "x-klaviyo-scopes": [
          "campaigns:write"
        ]
      },
      "delete": {
        "operationId": "delete_campaign",
        "summary": "Delete Campaign",
        "description": "Delete a campaign with the given campaign ID.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m`\n\n**Scopes:**\n`campaigns:write`",
        "parameters": [
          {
            "name": "id",
            "in": "path",
            "description": "The campaign ID to be deleted",
            "required": true,
            "schema": {
              "description": "The campaign ID to be deleted",
              "type": "string"
            }
          },
          {
            "name": "revision",
            "in": "header",
            "description": "API endpoint revision (format: YYYY-MM-DD[.suffix])",
            "required": true,
            "schema": {
              "type": "string",
              "default": "2026-04-15"
            }
          }
        ],
        "responses": {
          "204": {
            "description": "Success"
          },
          "4XX": {
            "$ref": "#/components/responses/ClientError"
          },
          "5XX": {
            "$ref": "#/components/responses/ServerError"
          }
        },
        "tags": [
          "Campaigns"
        ],
        "x-klaviyo-pre-release": "None",
        "x-klaviyo-ratelimit": {
          "burst": "10/s",
          "steady": "150/m"
        },
        "x-klaviyo-scopes": [
          "campaigns:write"
        ]
      }
    },
    "/api/campaign-messages/{id}": {
      "get": {
        "operationId": "get_campaign_message",
        "summary": "Get Campaign Message",
        "description": "Returns a specific message based on a required id.<br><br>*Rate limits*:<br>Burst: `10/s`<br>Steady: `150/m`\n\n**Scopes:**\n`campaigns:read`",
        "parameters": [
          {
            "name": "id",
            "in": "path",
            "description": "The message ID to be retrieved",
            "required": true,
            "schema": {
              "description": "The message ID to be retrieved",
              "type": "string"
            }
          },
          {
            "name": "fields[campaign-message]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets",
            "required": false,
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "created_at",
                  "definition",
                  "definition.channel",
                  "definition.content",
                  "definition.content.action_buttons",
                  "definition.content.bcc_email",
                  "definition.content.body",
                  "definition.content.cc_email",
                  "definition.content.dynamic_image",
                  "definition.content.from_email",
                  "definition.content.from_label",
                  "definition.content.media_url",
                  "definition.content.preview_text",
                  "definition.content.reply_to_email",
                  "definition.content.subject",
                  "definition.content.title",
                  "definition.kv_pairs",
                  "definition.label",
                  "definition.notification_type",
                  "definition.options",
                  "definition.options.badge",
                  "definition.options.badge.badge_options",
                  "definition.options.badge.badge_options.badge_config",
                  "definition.options.badge.badge_options.set_from_property",
                  "definition.options.badge.badge_options.value",
                  "definition.options.badge.display",
                  "definition.options.on_open",
                  "definition.options.on_open.android_deep_link",
                  "definition.options.on_open.ios_deep_link",
                  "definition.options.on_open.type",
                  "definition.options.play_sound",
                  "definition.render_options",
                  "definition.render_options.add_info_link",
                  "definition.render_options.add_opt_out_language",
                  "definition.render_options.add_org_prefix",
                  "definition.render_options.shorten_links",
                  "send_times",
                  "updated_at"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "fields[campaign]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets",
            "required": false,
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "archived",
                  "audiences",
                  "audiences.excluded",
                  "audiences.included",
                  "created_at",
                  "name",
                  "scheduled_at",
                  "send_options",
                  "send_options.use_smart_sending",
                  "send_strategy",
                  "send_strategy.date",
                  "send_strategy.datetime",
                  "send_strategy.method",
                  "send_strategy.options",
                  "send_strategy.options.is_local",
                  "send_strategy.options.send_past_recipients_immediately",
                  "send_strategy.throttle_percentage",
                  "send_time",
                  "status",
                  "tracking_options",
                  "tracking_options.add_tracking_params",
                  "tracking_options.custom_tracking_params",
                  "tracking_options.is_tracking_clicks",
                  "tracking_options.is_tracking_opens",
                  "updated_at"
                ]
              }
            },
            "explode": false
          },
          {
            "name": "fields[image]",
            "in": "query",
            "description": "For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsets",
            "required": false,
            "schema": {
              "type": "array",
              "items": {
                "type": "string",
                "enum": [
                  "format",
                  "hidden",
                  "image_url",
                  "name",
                  "size",
                  "updated_at"
 

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# Full source: https://raw.githubusercontent.com/api-evangelist/klaviyo/refs/heads/main/openapi/klaviyo-openapi.json
Klaviyo API

Documentation

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OpenAPI Specification
