> ## Documentation Index
> Fetch the complete documentation index at: https://docs.softmax.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Update Policy Version Tags Route

> Upsert user-supplied tags on one of your policy versions. Pass a null value to delete a tag.
Tags are private bookkeeping: they are only visible to you on the policy-version read endpoints.



## OpenAPI

````yaml https://softmax.com/api/observatory/openapi.json put /stats/policy-versions/{policy_version_id_str}/tags
openapi: 3.1.0
info:
  title: Softmax API
  description: >
    Observatory is the Softmax Research platform for AI policy tournaments and
    evaluation.

    Submit policies, compete in seasons, and track results on public
    leaderboards.


    ---


    ## Authentication


    Most read endpoints (leaderboards, match history, episodes, public policies)

    work without auth. Submitting policies or accessing your own data requires

    a Bearer token:


    ```

    Authorization: Bearer <your-token>

    ```


    To get a token, install [cogames](https://pypi.org/project/cogames/) and
    run:


    ```bash

    cogames auth login

    ```


    A `401` response means no token was provided. A `403` means the token

    is invalid or expired.


    ### Verify your token


    ```bash

    curl -H "Authorization: Bearer <your-token>" \
      https://softmax.com/api/observatory/whoami
    ```


    Returns `{"user_email": "you@example.com"}` on success.
  version: 1.0.0
servers:
  - url: https://softmax.com/api/observatory
security: []
paths:
  /stats/policy-versions/{policy_version_id_str}/tags:
    put:
      tags:
        - stats
      summary: Update Policy Version Tags Route
      description: >-
        Upsert user-supplied tags on one of your policy versions. Pass a null
        value to delete a tag.

        Tags are private bookkeeping: they are only visible to you on the
        policy-version read endpoints.
      operationId: >-
        update_policy_version_tags_route_stats_policy_versions__policy_version_id_str__tags_put
      parameters:
        - name: policy_version_id_str
          in: path
          required: true
          schema:
            type: string
            title: Policy Version Id Str
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              additionalProperties:
                anyOf:
                  - type: string
                  - type: 'null'
              title: Tags
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UUIDResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - BearerAuth: []
components:
  schemas:
    UUIDResponse:
      properties:
        id:
          type: string
          format: uuid
          title: Id
      type: object
      required:
        - id
      title: UUIDResponse
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: Bearer token issued by Softmax

````