> For the complete documentation index, see [llms.txt](https://t88kbetcom.gitbook.io/t88kbetcom/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://t88kbetcom.gitbook.io/t88kbetcom/api-reference/reference/pets/categories.md).

# Categories

## List categories

> Returns all categories available for classifying pets (e.g. dog, cat, rabbit).

```json
{"openapi":"3.0.3","info":{"title":"GitBook Petstore API","version":"1.0.0"},"tags":[{"name":"categories"}],"servers":[{"url":"https://petstore.example.com/v1","description":"Production"},{"url":"https://staging.petstore.example.com/v1","description":"Staging"}],"security":[{"bearerAuth":[]}],"components":{"securitySchemes":{"bearerAuth":{"type":"http","scheme":"bearer","description":"Pass your API key as a Bearer token in the `Authorization` header."}},"schemas":{"Category":{"allOf":[{"$ref":"#/components/schemas/NewCategory"},{"type":"object","required":["id"],"properties":{"id":{"type":"integer","format":"int64","description":"Unique identifier assigned on creation."}}}]},"NewCategory":{"type":"object","required":["name"],"properties":{"name":{"type":"string","description":"The category name (e.g. Dog, Cat, Rabbit)."},"description":{"type":"string","description":"A short description of the category."}}},"Error":{"type":"object","required":["code","message","status"],"properties":{"code":{"type":"string","description":"A machine-readable error code."},"message":{"type":"string","description":"A human-readable description of the error."},"status":{"type":"integer","description":"The HTTP status code."}}}},"responses":{"Unauthorized":{"description":"Missing or invalid API key.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/categories":{"get":{"summary":"List categories","description":"Returns all categories available for classifying pets (e.g. dog, cat, rabbit).","tags":["categories"],"operationId":"listCategories","responses":{"200":{"description":"An array of categories.","content":{"application/json":{"schema":{"type":"array","items":{"$ref":"#/components/schemas/Category"}}}}},"401":{"$ref":"#/components/responses/Unauthorized"}}}}}}
```

## Create a category

> Adds a new category for classifying pets.

```json
{"openapi":"3.0.3","info":{"title":"GitBook Petstore API","version":"1.0.0"},"tags":[{"name":"categories"}],"servers":[{"url":"https://petstore.example.com/v1","description":"Production"},{"url":"https://staging.petstore.example.com/v1","description":"Staging"}],"security":[{"bearerAuth":[]}],"components":{"securitySchemes":{"bearerAuth":{"type":"http","scheme":"bearer","description":"Pass your API key as a Bearer token in the `Authorization` header."}},"schemas":{"NewCategory":{"type":"object","required":["name"],"properties":{"name":{"type":"string","description":"The category name (e.g. Dog, Cat, Rabbit)."},"description":{"type":"string","description":"A short description of the category."}}},"Category":{"allOf":[{"$ref":"#/components/schemas/NewCategory"},{"type":"object","required":["id"],"properties":{"id":{"type":"integer","format":"int64","description":"Unique identifier assigned on creation."}}}]},"Error":{"type":"object","required":["code","message","status"],"properties":{"code":{"type":"string","description":"A machine-readable error code."},"message":{"type":"string","description":"A human-readable description of the error."},"status":{"type":"integer","description":"The HTTP status code."}}}},"responses":{"BadRequest":{"description":"The request body is missing required fields or contains invalid values.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"Unauthorized":{"description":"Missing or invalid API key.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}},"paths":{"/categories":{"post":{"summary":"Create a category","description":"Adds a new category for classifying pets.","tags":["categories"],"operationId":"createCategory","requestBody":{"required":true,"content":{"application/json":{"schema":{"$ref":"#/components/schemas/NewCategory"}}}},"responses":{"201":{"description":"Category created successfully.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Category"}}}},"400":{"$ref":"#/components/responses/BadRequest"},"401":{"$ref":"#/components/responses/Unauthorized"}}}}}}
```