{
"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": "developers@klaviyo.com",
"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"
}
],
"security": [
{
"Klaviyo-API-Key": []
}
],
"paths": {
"/api/template-clone": {
"post": {
"operationId": "clone_template",
"summary": "Clone Template",
"description": "Create a clone of a template with the given template ID.\n\nIf there are 1,000 or more templates in an account, cloning will fail as there is a limit of 1,000 templates\nthat can be created via the API.
*Rate limits*:
Burst: `75/s`
Steady: `750/m`\n\n**Scopes:**\n`templates:write`\n\n[OpenAPI Spec](https://raw.githubusercontent.com/klaviyo/openapi/main/openapi/stable/apis/clone_template.json)",
"parameters": [
{
"name": "fields[template]",
"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": [
"amp",
"created",
"editor_type",
"html",
"id",
"name",
"text",
"updated"
]
}
},
"explode": false
},
{
"name": "revision",
"in": "header",
"description": "API endpoint revision (format: YYYY-MM-DD[.suffix])",
"required": true,
"schema": {
"type": "string",
"default": "2026-04-15"
}
}
],
"requestBody": {
"required": true,
"content": {
"application/vnd.api+json": {
"schema": {
"$ref": "#/components/schemas/TemplateCloneQuery"
}
}
}
},
"responses": {
"201": {
"description": "Success",
"content": {
"application/vnd.api+json": {
"schema": {
"$ref": "#/components/schemas/PostTemplateResponse"
}
}
}
},
"4XX": {
"$ref": "#/components/responses/ClientError"
},
"5XX": {
"$ref": "#/components/responses/ServerError"
}
},
"tags": [
"Templates"
],
"x-klaviyo-operation-aliases": [
"create_template_clone"
],
"x-klaviyo-pre-release": "None",
"x-klaviyo-ratelimit": {
"burst": "75/s",
"steady": "750/m"
},
"x-klaviyo-scopes": [
"templates:write"
]
}
}
},
"components": {
"responses": {
"ClientError": {
"description": "Client Error",
"content": {
"application/vnd.api+json": {
"schema": {
"type": "object",
"properties": {
"errors": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"code",
"title",
"detail"
],
"properties": {
"id": {
"type": "string"
},
"code": {
"type": "string"
},
"title": {
"type": "string"
},
"detail": {
"type": "string"
},
"source": {
"type": "object",
"properties": {
"pointer": {
"type": "string"
},
"parameter": {
"type": "string"
}
}
}
}
}
}
},
"required": [
"errors"
]
}
}
}
},
"ServerError": {
"description": "Server Error",
"content": {
"application/vnd.api+json": {
"schema": {
"type": "object",
"properties": {
"errors": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"code",
"title",
"detail"
],
"properties": {
"id": {
"type": "string"
},
"code": {
"type": "string"
},
"title": {
"type": "string"
},
"detail": {
"type": "string"
},
"source": {
"type": "object",
"properties": {
"pointer": {
"type": "string"
},
"parameter": {
"type": "string"
}
}
}
}
}
}
},
"required": [
"errors"
]
}
}
}
}
},
"schemas": {
"ObjectLinks": {
"type": "object",
"properties": {
"self": {
"type": "string",
"format": "uri"
}
},
"required": [
"self"
]
},
"PostTemplateResponse": {
"type": "object",
"properties": {
"data": {
"type": "object",
"properties": {
"type": {
"$ref": "#/components/schemas/TemplateEnum"
},
"id": {
"description": "The ID of template",
"type": "string"
},
"attributes": {
"type": "object",
"properties": {
"name": {
"description": "The name of the template",
"type": "string"
},
"editor_type": {
"description": "`editor_type` has a fixed set of values:\n* SYSTEM_DRAGGABLE: indicates a drag-and-drop editor template\n* SIMPLE: A rich text editor template\n* CODE: A custom HTML template\n* USER_DRAGGABLE: A hybrid template, using custom HTML in the drag-and-drop editor",
"type": "string"
},
"html": {
"description": "The rendered HTML of the template",
"type": "string"
},
"text": {
"description": "The template plain_text",
"type": "string",
"nullable": true
},
"amp": {
"description": "The AMP version of the template. Requires AMP Email to be enabled to access in-app. Refer to the AMP Email setup guide at https://developers.klaviyo.com/en/docs/send_amp_emails_in_klaviyo",
"type": "string",
"nullable": true
},
"created": {
"description": "The date the template was created in ISO 8601 format (YYYY-MM-DDTHH:MM:SS.mmmmmm)",
"type": "string",
"format": "date-time",
"example": "2022-11-08T00:00:00+00:00",
"nullable": true
},
"updated": {
"description": "The date the template was updated in ISO 8601 format (YYYY-MM-DDTHH:MM:SS.mmmmmm)",
"type": "string",
"format": "date-time",
"example": "2022-11-08T00:00:00+00:00",
"nullable": true
}
},
"required": [
"name",
"editor_type",
"html"
]
},
"links": {
"$ref": "#/components/schemas/ObjectLinks"
}
},
"required": [
"type",
"id",
"attributes",
"links"
]
},
"links": {
"$ref": "#/components/schemas/ObjectLinks"
}
},
"required": [
"data"
]
},
"TemplateCloneQuery": {
"type": "object",
"properties": {
"data": {
"$ref": "#/components/schemas/TemplateCloneQueryResourceObject"
}
},
"required": [
"data"
]
},
"TemplateCloneQueryResourceObject": {
"type": "object",
"properties": {
"type": {
"$ref": "#/components/schemas/TemplateEnum"
},
"id": {
"description": "The ID of template to be cloned",
"type": "string"
},
"attributes": {
"type": "object",
"properties": {
"name": {
"description": "The name of the template",
"type": "string",
"example": "Clone of Monthly Newsletter Template",
"nullable": true
}
}
}
},
"required": [
"type",
"id",
"attributes"
]
},
"TemplateEnum": {
"type": "string",
"enum": [
"template"
]
}
},
"securitySchemes": {
"Klaviyo-API-Key": {
"type": "apiKey",
"in": "header",
"name": "Authorization",
"description": "Private key authentication for /api/ endpoints is performed by setting the `Authorization` header to `Klaviyo-API-Key your-private-api-key`
For more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#authentication",
"x-default": "Klaviyo-API-Key your-private-api-key"
}
}
},
"tags": [
{
"name": "Templates",
"description": "templates"
}
]
}