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

# Update threat model

> Save a user-edited threat model as a new version in the organization history.



## OpenAPI

````yaml https://app.cotool.ai/api/docs/openapi.json put /api/threat-model
openapi: 3.1.0
info:
  title: Cotool API
  version: 1.0.0
  description: >-
    # Cotool API Documentation


    The Cotool API allows you to interact with the Cotool platform
    programmatically, enabling you to build powerful integrations and automate
    your workflows.


    ## Getting an API Key


    Follow these steps to generate your API key:


    1. **Log in** to the Cotool web interface

    2. **Navigate** to `/settings/api-keys`

    3. **Click** "Generate Key"

    4. **Copy and store** your API key securely ⚠️ *It won't be shown again*


    ## API Key Authentication


    For programmatic access and integrations, use your API key with the
    Authorization header:


    ```http

    Authorization: Bearer your_api_key_here

    ```


    ```bash

    curl -X GET "https://app.cotool.ai/api/endpoint" \
      -H "Authorization: Bearer your_api_key_here" \
      -H "Content-Type: application/json"
    ```
servers:
  - url: https://app.cotool.ai
    description: Production server
security:
  - ApiKeyAuth: []
paths:
  /api/threat-model:
    put:
      tags:
        - ThreatModel
      summary: Update threat model
      description: >-
        Save a user-edited threat model as a new version in the organization
        history.
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                content:
                  type: string
                  minLength: 1
                  description: Updated full markdown content for the threat model
                changeDescription:
                  type:
                    - string
                    - 'null'
                  minLength: 1
                  maxLength: 255
                  description: Optional reason for the change
              required:
                - content
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                type: object
                properties:
                  organizationId:
                    type: string
                    format: uuid
                    description: Organization that owns this threat model
                  currentVersion:
                    type: object
                    properties:
                      id:
                        type: string
                        format: uuid
                        description: Unique identifier for this threat model version
                      version:
                        type: integer
                        exclusiveMinimum: 0
                        description: Monotonic version number
                      isCurrent:
                        type: boolean
                        description: >-
                          Whether this version is currently active for the
                          organization
                      authorType:
                        type: string
                        enum:
                          - ai
                          - user
                        description: Whether this version was created by AI or a human
                      authorId:
                        type:
                          - string
                          - 'null'
                        format: uuid
                        description: >-
                          User ID for human edits, or null for AI-authored
                          versions
                      modelAlias:
                        type:
                          - string
                          - 'null'
                        description: >-
                          Model alias that produced this version, or null for
                          human edits
                      changeDescription:
                        type:
                          - string
                          - 'null'
                        description: Short description of why this version was created
                      createdAt:
                        type: string
                        description: Timestamp when this version was created
                      content:
                        type: string
                        description: Full markdown content for this threat model version
                    required:
                      - id
                      - version
                      - isCurrent
                      - authorType
                      - authorId
                      - modelAlias
                      - changeDescription
                      - createdAt
                      - content
                    description: Current active version for the organization
                required:
                  - organizationId
                  - currentVersion
        '400':
          description: Bad request — input validation failed or the request was malformed
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationError'
        '401':
          description: Unauthorized — missing or invalid API key / session
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Forbidden — the authenticated user lacks the required permissions
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PermissionError'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      x-codeSamples:
        - lang: shell
          label: cURL
          source: |-
            curl -X PUT "https://app.cotool.ai/api/threat-model" \
              -H "Authorization: Bearer YOUR_API_KEY" \
              -H "Content-Type: application/json" \
              -d '{"content":"string","changeDescription":"string"}'
components:
  schemas:
    ValidationError:
      type: object
      properties:
        error:
          type: string
          description: Error message describing what went wrong
        issues:
          type: array
          description: >-
            Detailed validation issues, present when request or response schema
            validation fails
          items:
            type: object
            additionalProperties: true
      required:
        - error
    Error:
      type: object
      properties:
        error:
          type: string
          description: Error message describing what went wrong
      required:
        - error
    PermissionError:
      type: object
      properties:
        error:
          type: string
          description: Error message describing what went wrong
        missingPerms:
          type: array
          description: Permissions the authenticated user is missing for this operation
          items:
            type: string
      required:
        - error
  securitySchemes:
    ApiKeyAuth:
      type: http
      scheme: bearer
      bearerFormat: API Key
      description: >-
        API Key authentication for programmatic access. Include your API key in
        the Authorization header as: `Bearer your_api_key_here`

````