> ## 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. # Run multi-scale diffusion over the cached topology > Compute peer-relative divergence scores for the supplied return vector. This endpoint is synchronous (runs in FastAPI's thread pool) because the Chebyshev diffusion is CPU-bound and must not block the async event loop. Returns 503 if the feature is disabled or the topology is not yet loaded. Returns 400 if the request schema_version is unsupported. ## OpenAPI ````yaml /api/openapi.json post /api/internal/graph-diffusion/compute 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/compute: post: tags: - Internal summary: Run multi-scale diffusion over the cached topology description: >- Compute peer-relative divergence scores for the supplied return vector. This endpoint is synchronous (runs in FastAPI's thread pool) because the Chebyshev diffusion is CPU-bound and must not block the async event loop. Returns 503 if the feature is disabled or the topology is not yet loaded. Returns 400 if the request schema_version is unsupported. operationId: compute_diffusion_api_internal_graph_diffusion_compute_post requestBody: content: application/json: schema: $ref: >- #/components/schemas/app__services__graph_diffusion__models__ComputeRequest required: true responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/ComputeResponse' '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' components: schemas: app__services__graph_diffusion__models__ComputeRequest: properties: returns: additionalProperties: type: number type: object maxProperties: 25000 title: Returns description: >- Map of symbol → return value (e.g. 1-day return) used as the input signal. schema_version: type: integer minimum: 1 title: Schema Version description: Schema version for forward compatibility. default: 1 type: object required: - returns title: ComputeRequest description: Request body for POST /diffusion/compute. ComputeResponse: properties: schema_version: type: integer minimum: 1 title: Schema Version description: Schema version of this response. computed_at: type: string title: Computed At description: ISO-8601 UTC timestamp when computation completed. topology_built_at: anyOf: - type: string - type: 'null' title: Topology Built At description: ISO-8601 UTC timestamp when the current topology was last built. symbols_computed: type: integer minimum: 0 title: Symbols Computed description: Number of symbols with a computed score. symbols_skipped: type: integer minimum: 0 title: Symbols Skipped description: Number of symbols skipped (e.g. missing returns). scores: items: $ref: '#/components/schemas/DiffusionScore' type: array title: Scores description: Diffusion scores for all computed symbols. type: object required: - schema_version - computed_at - symbols_computed - symbols_skipped - scores title: ComputeResponse description: Response body for POST /diffusion/compute. HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError DiffusionScore: properties: symbol: type: string title: Symbol description: Ticker symbol. local: anyOf: - type: number maximum: 100 minimum: -100 - type: 'null' title: Local description: Diffusion score from the local (sector) tier. medium: anyOf: - type: number maximum: 100 minimum: -100 - type: 'null' title: Medium description: Diffusion score from the medium (cross-sector) tier. broad: anyOf: - type: number maximum: 100 minimum: -100 - type: 'null' title: Broad description: Diffusion score from the broad (market-wide) tier. composite: anyOf: - type: number maximum: 100 minimum: -100 - type: 'null' title: Composite description: Weighted composite of local/medium/broad scores. signal: type: string title: Signal description: Signal classification string (see SignalClassification enum). peers_local: type: integer minimum: 0 title: Peers Local description: Number of peers contributing to the local score. peers_medium: type: integer minimum: 0 title: Peers Medium description: Number of peers contributing to the medium score. peers_broad: type: integer minimum: 0 title: Peers Broad description: Number of peers contributing to the broad score. weight_config: type: string title: Weight Config description: Active weight configuration (see WeightConfig enum). contaminated: type: boolean title: Contaminated description: >- True if the symbol's own return influenced peer averages (self-contamination). default: false type: object required: - symbol - signal - peers_local - peers_medium - peers_broad - weight_config title: DiffusionScore description: Peer-diffused score for a single symbol. ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type input: title: Input ctx: type: object title: Context type: object required: - loc - msg - type title: ValidationError ````