{
"openapi": "3.0.2",
"info": {
"title": "Klaviyo API",
"version": "2026-07-15",
"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/tags/{id}/tag-group": {
"get": {
"operationId": "get_tag_group_for_tag",
"summary": "Get Tag Group for Tag",
"description": "Returns the tag group resource for a given tag ID.
*Rate limits*:
Burst: `3/s`
Steady: `60/m`\n\n**Scopes:**\n`tags:read`\n\n[OpenAPI Spec](https://raw.githubusercontent.com/klaviyo/openapi/main/openapi/stable/apis/get_tag_group_for_tag.json)",
"parameters": [
{
"name": "id",
"in": "path",
"description": "The Tag ID",
"required": true,
"schema": {
"description": "The Tag ID",
"type": "string",
"example": "abcd1234-ef56-gh78-ij90-abcdef123456"
}
},
{
"name": "fields[tag-group]",
"in": "query",
"description": "For more information please visit https://developers.klaviyo.com/en/v2026-07-15/reference/api-overview#sparse-fieldsets",
"required": false,
"schema": {
"type": "array",
"items": {
"type": "string",
"enum": [
"default",
"exclusive",
"id",
"name"
]
}
},
"explode": false
},
{
"name": "revision",
"in": "header",
"description": "API endpoint revision (format: YYYY-MM-DD[.suffix])",
"required": true,
"schema": {
"type": "string",
"default": "2026-07-15"
}
}
],
"responses": {
"200": {
"description": "Success",
"content": {
"application/vnd.api+json": {
"schema": {
"$ref": "#/components/schemas/GetTagGroupResponse"
}
}
}
},
"4XX": {
"$ref": "#/components/responses/ClientError"
},
"5XX": {
"$ref": "#/components/responses/ServerError"
}
},
"tags": [
"Tags"
],
"x-klaviyo-operation-aliases": [
"get_tag_tag_group",
"get_group_for_tag"
],
"x-klaviyo-pre-release": "None",
"x-klaviyo-ratelimit": {
"burst": "3/s",
"steady": "60/m"
},
"x-klaviyo-scopes": [
"tags:read"
]
}
}
},
"components": {
"responses": {
"ClientError": {
"description": "Client Error",
"content": {
"application/vnd.api+json": {
"schema": {
"type": "object",
"properties": {
"errors": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"code",
"title",
"detail"
],
"properties": {
"id": {
"type": "string"
},
"code": {
"type": "string"
},
"title": {
"type": "string"
},
"detail": {
"type": "string"
},
"source": {
"type": "object",
"properties": {
"pointer": {
"type": "string"
},
"parameter": {
"type": "string"
}
}
}
}
}
}
},
"required": [
"errors"
]
}
}
}
},
"ServerError": {
"description": "Server Error",
"content": {
"application/vnd.api+json": {
"schema": {
"type": "object",
"properties": {
"errors": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"code",
"title",
"detail"
],
"properties": {
"id": {
"type": "string"
},
"code": {
"type": "string"
},
"title": {
"type": "string"
},
"detail": {
"type": "string"
},
"source": {
"type": "object",
"properties": {
"pointer": {
"type": "string"
},
"parameter": {
"type": "string"
}
}
}
}
}
}
},
"required": [
"errors"
]
}
}
}
}
},
"schemas": {
"AgentHints": {
"description": "Optional hints emitted by the API for agent callers",
"type": "object",
"properties": {
"next_steps": {
"description": "Suggested follow-up actions for agents to take after this response",
"type": "array",
"items": {
"type": "string"
}
}
}
},
"GetTagGroupResponse": {
"type": "object",
"properties": {
"data": {
"allOf": [
{
"$ref": "#/components/schemas/TagGroupResponseObjectResource"
}
],
"nullable": true
},
"links": {
"$ref": "#/components/schemas/ObjectLinks"
},
"meta": {
"$ref": "#/components/schemas/ResponseMeta"
}
},
"required": [
"data"
]
},
"ObjectLinks": {
"type": "object",
"properties": {
"self": {
"type": "string",
"format": "uri"
}
},
"required": [
"self"
]
},
"RelationshipLinks": {
"type": "object",
"properties": {
"self": {
"type": "string",
"format": "uri"
},
"related": {
"type": "string",
"format": "uri"
}
},
"required": [
"self",
"related"
]
},
"ResponseMeta": {
"description": "Response-level metadata",
"type": "object",
"properties": {
"agent_hints": {
"$ref": "#/components/schemas/AgentHints"
}
}
},
"TagEnum": {
"type": "string",
"enum": [
"tag"
]
},
"TagGroupEnum": {
"type": "string",
"enum": [
"tag-group"
]
},
"TagGroupResponseObjectResource": {
"type": "object",
"properties": {
"type": {
"$ref": "#/components/schemas/TagGroupEnum"
},
"id": {
"description": "The Tag Group ID",
"type": "string",
"example": "zyxw9876-vu54-ts32-rq10-zyxwvu654321"
},
"attributes": {
"type": "object",
"properties": {
"name": {
"description": "The Tag Group name",
"type": "string",
"example": "My Tag Group"
},
"exclusive": {
"description": "If a tag group is non-exclusive, any given related resource (campaign, flow, etc.) can be linked to multiple tags from that tag group. If a tag group is exclusive, any given related resource can only be linked to one tag from that tag group.",
"type": "boolean"
},
"default": {
"description": "Every company automatically has one Default Tag Group. The Default Tag Group cannot be deleted, and no other Default Tag Groups can be created. This value is true for the Default Tag Group and false for all other Tag Groups.",
"type": "boolean"
}
},
"required": [
"name",
"exclusive",
"default"
]
},
"relationships": {
"type": "object",
"properties": {
"tags": {
"type": "object",
"properties": {
"data": {
"type": "array",
"items": {
"type": "object",
"required": [
"type",
"id"
],
"properties": {
"type": {
"$ref": "#/components/schemas/TagEnum"
},
"id": {
"type": "string"
}
}
}
},
"links": {
"$ref": "#/components/schemas/RelationshipLinks"
}
}
}
}
},
"links": {
"$ref": "#/components/schemas/ObjectLinks"
}
},
"required": [
"type",
"id",
"attributes",
"links"
]
}
},
"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/v2026-07-15/reference/api-overview#authentication",
"x-default": "Klaviyo-API-Key your-private-api-key"
}
}
},
"tags": [
{
"name": "Tags",
"description": "tags"
}
]
}