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

# List the engines

> Every AI engine Citino can sample, and how a project gets it: on by default, an opt-in a plan carries, or Enterprise only.



## OpenAPI

````yaml /api-reference/openapi.json get /engines
openapi: 3.1.0
info:
  title: Citino API
  version: v1
  description: >-
    Read how AI engines answer your market's questions, and keep your prompts,
    competitors, segments and engines in step from code. Every number carries
    its band and sample size.
servers:
  - url: https://api.citino.ai/v1
security:
  - bearerAuth: []
tags:
  - name: Brand and competitors
  - name: Definitions
  - name: Engines
  - name: Projects
  - name: Alerts
  - name: Attribution
  - name: Claims
  - name: Crawlability
  - name: Crawler activity
  - name: Metrics
  - name: Experiments
  - name: Prompts
  - name: Objections
  - name: Monthly reports
  - name: Reports
  - name: Runs
  - name: Searches
  - name: Sources
  - name: Work items
  - name: Settings
paths:
  /engines:
    get:
      tags:
        - Engines
      summary: List the engines
      description: >-
        Every AI engine Citino can sample, and how a project gets it: on by
        default, an opt-in a plan carries, or Enterprise only.
      operationId: getEngines
      parameters: []
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  items:
                    type: array
                    items:
                      type: object
                      properties:
                        key:
                          type: string
                        name:
                          type: string
                        availability:
                          type: string
                          enum:
                            - default
                            - opt_in
                            - enterprise
                      required:
                        - key
                        - name
                        - availability
                      additionalProperties: false
                required:
                  - items
                additionalProperties: false
              example:
                items:
                  - key: chatgpt
                    name: ChatGPT · web search
                    availability: default
                  - key: google-ai-overview
                    name: Google · AI Overview
                    availability: default
                  - key: perplexity
                    name: Perplexity · Sonar
                    availability: default
        '400':
          description: The request is invalid; `error.field` names the parameter.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: 'No live API key in an `Authorization: Bearer` header.'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: The key lacks the scope named in the message, or cannot write.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No such resource in this key's projects.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          description: Over the key's or the workspace's rate limit; see `Retry-After`.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '503':
          description: Busy or timed out; retry after `Retry-After`.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      x-codeSamples:
        - lang: bash
          label: curl
          source: |-
            curl "https://api.citino.ai/v1/engines" \
              -H "Authorization: Bearer $CITINO_API_KEY"
        - lang: python
          label: Python
          source: |-
            import os
            import requests

            res = requests.get(
                "https://api.citino.ai/v1/engines",
                headers={"Authorization": f"Bearer {os.environ['CITINO_API_KEY']}"},
            )
            print(res.json())
        - lang: javascript
          label: JavaScript
          source: |-
            const res = await fetch("https://api.citino.ai/v1/engines", {
              headers: {
                Authorization: `Bearer ${process.env.CITINO_API_KEY}`,
              },
            });
            console.log(await res.json());
components:
  schemas:
    Error:
      type: object
      required:
        - error
      properties:
        error:
          type: object
          required:
            - code
            - message
          properties:
            code:
              type: string
              description: >-
                validation, unauthorized, forbidden, not_found, conflict,
                plan_limit, rate_limited, busy, query_timeout
            message:
              type: string
            field:
              type: string
            detail:
              type: object
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        An API key from Workspace settings → API keys, sent as `Authorization:
        Bearer <key>`.

````

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