Cognee search API

openapi: 3.2.0
info:
  title: Cognee REST agents Search API
  description: 'The Cognee REST API provides endpoints for the complete AI memory lifecycle, including data ingestion, knowledge graph construction, and semantic retrieval. Core endpoints cover adding raw text or documents, triggering the cognify pipeline that extracts entities and relationships via LLM, executing multi-mode search queries, managing datasets, and creating agent identities. The API uses X-Api-Key header authentication for cloud deployments and Bearer token auth for self-hosted instances.

    '
  version: 1.0.0
  contact:
    name: Cognee Support
    url: https://docs.cognee.ai/api-reference/introduction
  license:
    name: Apache 2.0
    url: https://github.com/topoteretes/cognee/blob/main/LICENSE
servers:
- url: https://api.cognee.ai
  description: Cognee Cloud (managed)
- url: http://localhost:8000
  description: Self-hosted (Docker / local)
security:
- BearerAuth: []
- ApiKeyAuth: []
tags:
- name: search
  description: Semantic and graph search queries
paths:
  /api/v1/search:
    get:
      operationId: getSearchHistory
      summary: Get search history for the authenticated user
      description: 'Retrieves the search history for the authenticated user, returning a list of previously executed searches with their timestamps.

        '
      tags:
      - search
      security:
      - BearerAuth: []
      - ApiKeyAuth: []
      responses:
        '200':
          description: List of search history items
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/SearchHistoryItem'
        '403':
          description: Permission denied
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    post:
      operationId: search
      summary: Search the knowledge graph
      description: 'Perform semantic search across the knowledge graph using one of 16 search types including GRAPH_COMPLETION, RAG_COMPLETION, SUMMARIES, CHUNKS, CYPHER, TEMPORAL, AGENTIC_COMPLETION and more. Supports dataset scoping and pagination.

        '
      tags:
      - search
      security:
      - BearerAuth: []
      - ApiKeyAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SearchPayload'
            example:
              search_type: GRAPH_COMPLETION
              query: What are the main topics in the research papers?
              datasets:
              - research_papers
              top_k: 10
              only_context: false
      responses:
        '200':
          description: List of search results from the knowledge graph
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/SearchResult'
        '403':
          description: Permission denied (returns empty list)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '422':
          description: Validation error or search prerequisites not met
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    ErrorResponse:
      type: object
      properties:
        error:
          type: string
          description: Short error message
        detail:
          type:
          - string
          - 'null'
          description: Detailed error description
      required:
      - error
    SearchPayload:
      type: object
      required:
      - query
      properties:
        search_type:
          $ref: '#/components/schemas/SearchType'
          default: GRAPH_COMPLETION
        datasets:
          type:
          - array
          - 'null'
          items:
            type: string
          description: Dataset names to search (resolved to datasets owned by caller)
        dataset_ids:
          type:
          - array
          - 'null'
          items:
            type: string
            format: uuid
          description: Dataset UUIDs to search (allows cross-user access if permitted)
          example: []
        query:
          type: string
          description: The search query string
          default: What is in the document?
        system_prompt:
          type:
          - string
          - 'null'
          description: System prompt for completion-type searches
          default: Answer the question using the provided context. Be as brief as possible.
        node_name:
          type:
          - array
          - 'null'
          items:
            type: string
          description: Filter results to specific node_sets from the add pipeline
        top_k:
          type:
          - integer
          - 'null'
          description: Maximum number of results to return
          default: 10
        only_context:
          type: boolean
          description: Return only context without LLM completion call
          default: false
        verbose:
          type: boolean
          description: Return verbose results
          default: false
        skills:
          type:
          - array
          - 'null'
          items:
            type: string
          description: Skills to enable for agentic search
        tools:
          type:
          - array
          - 'null'
          items:
            type: string
          description: Tools to enable for agentic search
        max_iter:
          type:
          - integer
          - 'null'
          description: Maximum iterations for agentic search
    SearchHistoryItem:
      type: object
      properties:
        id:
          type: string
          format: uuid
        text:
          type: string
        user:
          type: string
        created_at:
          type: string
          format: date-time
      required:
      - id
      - text
      - user
      - created_at
    SearchType:
      type: string
      enum:
      - SUMMARIES
      - CHUNKS
      - RAG_COMPLETION
      - TRIPLET_COMPLETION
      - GRAPH_COMPLETION
      - GRAPH_COMPLETION_DECOMPOSITION
      - GRAPH_SUMMARY_COMPLETION
      - CYPHER
      - NATURAL_LANGUAGE
      - GRAPH_COMPLETION_COT
      - GRAPH_COMPLETION_CONTEXT_EXTENSION
      - FEELING_LUCKY
      - TEMPORAL
      - CODING_RULES
      - CHUNKS_LEXICAL
      - AGENTIC_COMPLETION
      description: Type of search to perform against the knowledge graph
    SearchResult:
      type: object
      description: A single result node from the knowledge graph
      additionalProperties: true
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: Bearer token authentication for self-hosted instances
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-Api-Key
      description: API key authentication for Cognee Cloud deployments
externalDocs:
  description: Cognee API Reference
  url: https://docs.cognee.ai/api-reference/introduction