Vectara Query API

openapi: 3.1.0
info:
  title: Vectara REST API
  description: |
    Vectara REST API v2 is the unified interface for the Vectara Retrieval Augmented
    Generation (RAG) platform. It exposes endpoints for managing corpora, uploading
    and indexing documents, running semantic and hybrid queries with grounded
    generation, managing agents, tools, pipelines, generation presets, and reading
    metadata.

    This OpenAPI 3.1 description is hand-curated from the public Vectara REST API
    documentation at https://docs.vectara.com/docs/rest-api/ and the published
    OpenAPI document at https://docs.vectara.com/vectara-oas-v2.yaml. It covers a
    representative subset of endpoints across corpora, documents, query, agents,
    tools, pipelines, and OAuth.
  version: "2.0"
  contact:
    name: Vectara Support
    url: https://docs.vectara.com/docs/support
  license:
    name: Proprietary
servers:
  - url: https://api.vectara.io
    description: Vectara REST API production base URL
  - url: https://auth.vectara.io
    description: Vectara OAuth 2.0 token endpoint
security:
  - ApiKeyAuth: []
  - OAuth2: []
tags:
  - name: Corpora
    description: Create, list, update, and delete corpora that hold indexed documents.
  - name: Documents
    description: Upload, index, retrieve, update, and delete documents in a corpus.
  - name: Query
    description: Semantic, keyword, and hybrid queries with optional grounded generation.
  - name: Agents
    description: Build and operate agents over Vectara corpora.
  - name: Tools
    description: Manage tools and tool servers used by agents.
  - name: Pipelines
    description: Manage pipelines and inspect pipeline runs.
  - name: Authentication
    description: OAuth 2.0 client credentials flow for obtaining JWT tokens.
paths:
  /v2/corpora:
    get:
      tags: [Corpora]
      summary: List Corpora
      operationId: listCorpora
      parameters:
        - in: query
          name: limit
          schema: { type: integer, default: 10 }
        - in: query
          name: page_key
          schema: { type: string }
        - in: query
          name: filter
          schema: { type: string }
      responses:
        "200":
          description: A list of corpora.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ListCorporaResponse"
    post:
      tags: [Corpora]
      summary: Create A Corpus
      operationId: createCorpus
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/CreateCorpusRequest"
      responses:
        "201":
          description: Corpus created.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Corpus"
  /v2/corpora/{corpus_key}:
    parameters:
      - $ref: "#/components/parameters/CorpusKey"
    get:
      tags: [Corpora]
      summary: Retrieve Corpus Metadata
      operationId: getCorpus
      responses:
        "200":
          description: Corpus metadata.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Corpus"
    patch:
      tags: [Corpora]
      summary: Update A Corpus
      operationId: updateCorpus
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/UpdateCorpusRequest"
      responses:
        "200":
          description: Corpus updated.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Corpus"
    delete:
      tags: [Corpora]
      summary: Delete A Corpus
      operationId: deleteCorpus
      responses:
        "204":
          description: Corpus deleted.
  /v2/corpora/{corpus_key}/reset:
    parameters:
      - $ref: "#/components/parameters/CorpusKey"
    post:
      tags: [Corpora]
      summary: Reset A Corpus
      description: Remove all documents from the corpus while keeping the corpus itself.
      operationId: resetCorpus
      responses:
        "204":
          description: Corpus reset.
  /v2/corpora/{corpus_key}/compute_size:
    parameters:
      - $ref: "#/components/parameters/CorpusKey"
    post:
      tags: [Corpora]
      summary: Compute Corpus Size
      operationId: computeCorpusSize
      responses:
        "200":
          description: Corpus size information.
          content:
            application/json:
              schema:
                type: object
                properties:
                  size_bytes: { type: integer }
                  document_count: { type: integer }
  /v2/corpora/{corpus_key}/upload_file:
    parameters:
      - $ref: "#/components/parameters/CorpusKey"
    post:
      tags: [Documents]
      summary: Upload A File
      description: Upload an unstructured file (PDF, DOCX, HTML, etc.) to be parsed and indexed.
      operationId: uploadFile
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                file:
                  type: string
                  format: binary
                metadata:
                  type: string
      responses:
        "201":
          description: File uploaded and indexing started.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Document"
  /v2/corpora/{corpus_key}/documents:
    parameters:
      - $ref: "#/components/parameters/CorpusKey"
    get:
      tags: [Documents]
      summary: List Corpus Documents
      operationId: listDocuments
      parameters:
        - in: query
          name: limit
          schema: { type: integer }
        - in: query
          name: page_key
          schema: { type: string }
        - in: query
          name: metadata_filter
          schema: { type: string }
      responses:
        "200":
          description: List of documents.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ListDocumentsResponse"
    post:
      tags: [Documents]
      summary: Add A Structured (Core) Document
      operationId: addDocument
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/Document"
      responses:
        "201":
          description: Document created.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Document"
    delete:
      tags: [Documents]
      summary: Bulk Delete Documents
      operationId: bulkDeleteDocuments
      parameters:
        - in: query
          name: metadata_filter
          required: true
          schema: { type: string }
      responses:
        "204":
          description: Documents deleted.
  /v2/corpora/{corpus_key}/documents/{document_id}:
    parameters:
      - $ref: "#/components/parameters/CorpusKey"
      - $ref: "#/components/parameters/DocumentId"
    get:
      tags: [Documents]
      summary: Retrieve A Document
      operationId: getDocument
      responses:
        "200":
          description: Document.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Document"
    patch:
      tags: [Documents]
      summary: Update Document Metadata
      operationId: updateDocument
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                metadata:
                  type: object
                  additionalProperties: true
      responses:
        "200":
          description: Document updated.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Document"
    delete:
      tags: [Documents]
      summary: Delete A Document
      operationId: deleteDocument
      responses:
        "204":
          description: Document deleted.
  /v2/corpora/{corpus_key}/documents/{document_id}/summarize:
    parameters:
      - $ref: "#/components/parameters/CorpusKey"
      - $ref: "#/components/parameters/DocumentId"
    post:
      tags: [Documents]
      summary: Summarize A Document
      operationId: summarizeDocument
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                llm_name: { type: string }
                prompt_name: { type: string }
      responses:
        "200":
          description: Summary.
          content:
            application/json:
              schema:
                type: object
                properties:
                  summary: { type: string }
  /v2/corpora/{corpus_key}/query:
    parameters:
      - $ref: "#/components/parameters/CorpusKey"
    post:
      tags: [Query]
      summary: Query A Single Corpus
      operationId: queryCorpus
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/QueryRequest"
      responses:
        "200":
          description: Query results with optional grounded generation.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/QueryResponse"
  /v2/corpora/{corpus_key}/search:
    parameters:
      - $ref: "#/components/parameters/CorpusKey"
    post:
      tags: [Query]
      summary: Search A Single Corpus
      operationId: searchCorpus
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/QueryRequest"
      responses:
        "200":
          description: Search results.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/QueryResponse"
  /v2/corpora/{corpus_key}/queries:
    parameters:
      - $ref: "#/components/parameters/CorpusKey"
    post:
      tags: [Query]
      summary: Run A Multi-Stage Query
      operationId: queriesCorpus
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/QueryRequest"
      responses:
        "200":
          description: Query results.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/QueryResponse"
  /v2/agents:
    get:
      tags: [Agents]
      summary: List Agents
      operationId: listAgents
      responses:
        "200":
          description: List of agents.
          content:
            application/json:
              schema:
                type: object
                properties:
                  agents:
                    type: array
                    items: { $ref: "#/components/schemas/Agent" }
    post:
      tags: [Agents]
      summary: Create An Agent
      operationId: createAgent
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/Agent"
      responses:
        "201":
          description: Agent created.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Agent"
  /v2/agents/{agent_id}:
    parameters:
      - in: path
        name: agent_id
        required: true
        schema: { type: string }
    get:
      tags: [Agents]
      summary: Retrieve An Agent
      operationId: getAgent
      responses:
        "200":
          description: Agent.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Agent"
    patch:
      tags: [Agents]
      summary: Update An Agent
      operationId: updateAgent
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/Agent"
      responses:
        "200":
          description: Agent updated.
    delete:
      tags: [Agents]
      summary: Delete An Agent
      operationId: deleteAgent
      responses:
        "204":
          description: Agent deleted.
  /v2/agents/{agent_id}/sessions:
    parameters:
      - in: path
        name: agent_id
        required: true
        schema: { type: string }
    get:
      tags: [Agents]
      summary: List Agent Sessions
      operationId: listAgentSessions
      responses:
        "200":
          description: Sessions.
    post:
      tags: [Agents]
      summary: Create An Agent Session
      operationId: createAgentSession
      responses:
        "201":
          description: Session created.
  /v2/agents/{agent_id}/sessions/{session_id}/turns:
    parameters:
      - in: path
        name: agent_id
        required: true
        schema: { type: string }
      - in: path
        name: session_id
        required: true
        schema: { type: string }
    post:
      tags: [Agents]
      summary: Add A Turn To An Agent Session
      operationId: addAgentTurn
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                message: { type: string }
      responses:
        "200":
          description: Turn response.
  /v2/tools:
    get:
      tags: [Tools]
      summary: List Tools
      operationId: listTools
      responses:
        "200":
          description: Tools.
    post:
      tags: [Tools]
      summary: Create A Tool
      operationId: createTool
      responses:
        "201":
          description: Tool created.
  /v2/tool-servers:
    get:
      tags: [Tools]
      summary: List Tool Servers
      operationId: listToolServers
      responses:
        "200":
          description: Tool servers.
    post:
      tags: [Tools]
      summary: Register A Tool Server
      operationId: createToolServer
      responses:
        "201":
          description: Tool server registered.
  /v2/pipelines:
    get:
      tags: [Pipelines]
      summary: List Pipelines
      operationId: listPipelines
      responses:
        "200":
          description: Pipelines.
    post:
      tags: [Pipelines]
      summary: Create A Pipeline
      operationId: createPipeline
      responses:
        "201":
          description: Pipeline created.
  /v2/pipeline-runs:
    get:
      tags: [Pipelines]
      summary: List Pipeline Runs
      operationId: listPipelineRuns
      responses:
        "200":
          description: Pipeline runs.
  /oauth2/token:
    servers:
      - url: https://auth.vectara.io
    post:
      tags: [Authentication]
      summary: Obtain An OAuth 2.0 Access Token (Client Credentials)
      operationId: getOauthToken
      security: []
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required: [grant_type, client_id, client_secret]
              properties:
                grant_type:
                  type: string
                  enum: [client_credentials]
                client_id: { type: string }
                client_secret: { type: string }
      responses:
        "200":
          description: Token response.
          content:
            application/json:
              schema:
                type: object
                properties:
                  access_token: { type: string }
                  token_type: { type: string, example: Bearer }
                  expires_in: { type: integer, example: 1800 }
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: Vectara API key passed in the `x-api-key` header.
    OAuth2:
      type: oauth2
      description: OAuth 2.0 client credentials flow.
      flows:
        clientCredentials:
          tokenUrl: https://auth.vectara.io/oauth2/token
          scopes: {}
  parameters:
    CorpusKey:
      in: path
      name: corpus_key
      required: true
      schema:
        type: string
      description: The unique key identifying a corpus.
    DocumentId:
      in: path
      name: document_id
      required: true
      schema:
        type: string
      description: The unique identifier of a document.
  schemas:
    Corpus:
      type: object
      properties:
        key: { type: string }
        name: { type: string }
        description: { type: string }
        queries_are_answers: { type: boolean }
        documents_are_questions: { type: boolean }
        encoder_id: { type: string }
        filter_attributes:
          type: array
          items: { $ref: "#/components/schemas/FilterAttribute" }
        custom_dimensions:
          type: array
          items:
            type: object
            properties:
              name: { type: string }
              description: { type: string }
        enabled: { type: boolean }
        created_at: { type: string, format: date-time }
    CreateCorpusRequest:
      allOf:
        - $ref: "#/components/schemas/Corpus"
        - type: object
          required: [key, name]
    UpdateCorpusRequest:
      type: object
      properties:
        name: { type: string }
        description: { type: string }
        enabled: { type: boolean }
    ListCorporaResponse:
      type: object
      properties:
        corpora:
          type: array
          items: { $ref: "#/components/schemas/Corpus" }
        metadata:
          $ref: "#/components/schemas/PageMetadata"
    FilterAttribute:
      type: object
      properties:
        name: { type: string }
        level:
          type: string
          enum: [document, document_part]
        indexed: { type: boolean }
        type:
          type: string
          enum: [text, integer, real, boolean]
    Document:
      type: object
      properties:
        id: { type: string }
        type:
          type: string
          enum: [core, structured]
        metadata:
          type: object
          additionalProperties: true
        document_parts:
          type: array
          items:
            type: object
            properties:
              text: { type: string }
              metadata:
                type: object
                additionalProperties: true
    ListDocumentsResponse:
      type: object
      properties:
        documents:
          type: array
          items: { $ref: "#/components/schemas/Document" }
        metadata:
          $ref: "#/components/schemas/PageMetadata"
    QueryRequest:
      type: object
      required: [query]
      properties:
        query:
          type: string
          description: The natural-language query string.
        search:
          type: object
          properties:
            limit: { type: integer, default: 10 }
            offset: { type: integer, default: 0 }
            metadata_filter: { type: string }
            lexical_interpolation: { type: number }
            reranker:
              type: object
              properties:
                type: { type: string }
        generation:
          type: object
          properties:
            generation_preset_name: { type: string }
            max_used_search_results: { type: integer }
            response_language: { type: string }
            enable_factual_consistency_score: { type: boolean }
        stream_response: { type: boolean }
    QueryResponse:
      type: object
      properties:
        summary: { type: string }
        factual_consistency_score: { type: number }
        search_results:
          type: array
          items:
            type: object
            properties:
              text: { type: string }
              score: { type: number }
              document_id: { type: string }
              part_metadata:
                type: object
                additionalProperties: true
              document_metadata:
                type: object
                additionalProperties: true
    Agent:
      type: object
      properties:
        id: { type: string }
        name: { type: string }
        description: { type: string }
        instructions: { type: string }
        tool_ids:
          type: array
          items: { type: string }
        corpus_keys:
          type: array
          items: { type: string }
        enabled: { type: boolean }
    PageMetadata:
      type: object
      properties:
        page_key: { type: string }
        next_page_key: { type: string }