openapi: 3.1.0
info:
  title: TiDB Cloud API Keys Sessions API
  description: The TiDB Cloud API is a REST interface that provides programmatic access to manage administrative objects within TiDB Cloud. It supports managing projects, clusters, backups, restores, data imports, billing, and private endpoint connections across both TiDB Cloud Serverless and TiDB Cloud Dedicated tiers. The API uses HTTP Digest Authentication with public and private API keys and returns JSON-formatted responses. Available as both v1beta and the newer v1beta1 versions, it enables automation of database infrastructure lifecycle management at scale.
  version: v1beta1
  contact:
    name: TiDB Cloud Support
    url: https://docs.pingcap.com/tidbcloud/api-overview/
  termsOfService: https://www.pingcap.com/legal/privacy-policy/
servers:
- url: https://dedicated.tidbapi.com/v1beta1
  description: Dedicated Cluster API Server
- url: https://iam.tidbapi.com/v1beta1
  description: IAM API Server
- url: https://billing.tidbapi.com/v1beta1
  description: Billing API Server
security:
- digestAuth: []
tags:
- name: Sessions
  description: Operations for creating and managing multi-round conversational chat sessions.
paths:
  /v3/sessions:
    post:
      operationId: createChatSession
      summary: Create a chat session
      description: Creates a new multi-round conversational chat session. Sessions maintain conversation context across multiple chat2data calls, enabling follow-up questions that reference prior results. Use the returned session ID in subsequent chat2data requests to continue the conversation.
      tags:
      - Sessions
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateSessionRequest'
      responses:
        '200':
          description: Chat session created successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ChatSession'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimitExceeded'
components:
  responses:
    Unauthorized:
      description: Authentication failed. Check your Chat2Query API key credentials.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    BadRequest:
      description: The request body or parameters are invalid.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    RateLimitExceeded:
      description: Rate limit exceeded. The Chat2Query API allows 100 requests per day per Data App. Contact TiDB Cloud support to request a higher limit.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  schemas:
    ErrorResponse:
      type: object
      description: Standard error response returned when an API request fails.
      properties:
        code:
          type: integer
          description: The error code.
        msg:
          type: string
          description: A human-readable error message describing the failure.
    ChatSession:
      type: object
      description: A multi-round conversational chat session.
      properties:
        code:
          type: integer
          description: The response code. 200 indicates success.
        msg:
          type: string
          description: A message describing the result.
        result:
          type: object
          properties:
            session_id:
              type: string
              description: The unique session identifier to use in subsequent chat2data requests.
    CreateSessionRequest:
      type: object
      description: Request body for creating a multi-round chat session.
      required:
      - cluster_id
      - database
      properties:
        cluster_id:
          type: string
          description: The ID of the TiDB Cloud cluster for this session.
        database:
          type: string
          description: The database to use for this chat session.
  securitySchemes:
    digestAuth:
      type: http
      scheme: digest
      description: HTTP Digest Authentication using a TiDB Cloud API public key as the username and private key as the password. Keys are generated in the TiDB Cloud console under Organization Settings > API Keys.
externalDocs:
  description: TiDB Cloud API Overview
  url: https://docs.pingcap.com/tidbcloud/api-overview/