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

# Return topology cache health and metadata

> Return the current health and metadata of the in-memory topology cache.



## OpenAPI

````yaml /api/openapi.json get /api/internal/graph-diffusion/status
openapi: 3.1.0
info:
  title: Sequency Graph API
  description: >

    # Sequency Graph-Native Trading API


    Graph-native API for trading intelligence, built on FalkorDB.


    ## Features


    - **Screener**: Filter stocks using graph-native queries with relationship
    expansion

    - **Stock Detail**: Complete stock context with all relationships

    - **Confluence Scoring**: Setup quality assessment with weighted components

    - **Strategy Matching**: Find matching options strategies via graph
    traversal

    - **Market Context**: Current market-wide context for trading decisions


    ## Data Sources


    All data is sourced from the FalkorDB knowledge graph, populated by:

    - Pattern detector (Go) - Technical indicators, patterns

    - Graph sync service - Levels, volume profiles, news, day classification
  version: 1.0.0
servers: []
security: []
paths:
  /api/internal/graph-diffusion/status:
    get:
      tags:
        - Internal
      summary: Return topology cache health and metadata
      description: Return the current health and metadata of the in-memory topology cache.
      operationId: get_status_api_internal_graph_diffusion_status_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TopologyStatus'
components:
  schemas:
    TopologyStatus:
      properties:
        healthy:
          type: boolean
          title: Healthy
          description: True if the topology is loaded and not stale.
        topology_built_at:
          anyOf:
            - type: string
            - type: 'null'
          title: Topology Built At
          description: ISO-8601 UTC timestamp of the last successful topology build.
        topology_age_seconds:
          anyOf:
            - type: number
              minimum: 0
            - type: 'null'
          title: Topology Age Seconds
          description: Seconds elapsed since the topology was built.
        topology_stale:
          type: boolean
          title: Topology Stale
          description: True if the topology exceeds the configured staleness threshold.
        symbols_in_topology:
          type: integer
          minimum: 0
          title: Symbols In Topology
          description: Number of symbols currently loaded in the topology.
        last_compute_at:
          anyOf:
            - type: string
            - type: 'null'
          title: Last Compute At
          description: ISO-8601 UTC timestamp of the most recent compute run.
        last_compute_latency_ms:
          anyOf:
            - type: number
              minimum: 0
            - type: 'null'
          title: Last Compute Latency Ms
          description: Wall-clock latency of the most recent compute run in milliseconds.
        blas_backend:
          type: string
          title: Blas Backend
          description: NumPy/SciPy BLAS backend in use (e.g. OpenBLAS, MKL).
        memory_mb:
          type: number
          minimum: 0
          title: Memory Mb
          description: Estimated memory consumed by the topology in megabytes.
      type: object
      required:
        - healthy
        - topology_stale
        - symbols_in_topology
        - blas_backend
        - memory_mb
      title: TopologyStatus
      description: Current health and metadata of the in-memory topology.

````