> ## Documentation Index > Fetch the complete documentation index at: https://www.worldmonitor.app/docs/llms.txt > Use this file to discover all available pages before exploring further. # ListCrossSourceSignals > ListCrossSourceSignals returns cross-domain signals ranked by severity with composite escalation detection. ## OpenAPI ````yaml /api/IntelligenceService.openapi.yaml get /api/intelligence/v1/list-cross-source-signals openapi: 3.1.0 info: title: IntelligenceService API version: 1.0.0 servers: - url: https://api.worldmonitor.app security: - WorldMonitorKey: [] - ApiKeyHeader: [] paths: /api/intelligence/v1/list-cross-source-signals: get: tags: - IntelligenceService summary: ListCrossSourceSignals description: >- ListCrossSourceSignals returns cross-domain signals ranked by severity with composite escalation detection. operationId: ListCrossSourceSignals parameters: - name: jmespath in: query description: >- Optional JMESPath expression applied server-side to project or reduce the JSON response before it is returned (mirrors the MCP jmespath argument). Invalid expressions, expressions larger than 1024 UTF-8 bytes, or projections that exceed the 256 KB output cap return HTTP 400 with a {_jmespath_error, original_keys} envelope. Grammar and worked examples: https://www.worldmonitor.app/docs/mcp-jmespath. required: false example: keys(@) schema: type: string responses: '200': description: Successful response content: application/json: example: compositeCount: 1 evaluatedAt: 1717200000000 signals: - contributingTypes: - example detectedAt: 1717200000000 id: example-id severity: CROSS_SOURCE_SIGNAL_SEVERITY_LOW severityScore: 42.5 schema: $ref: '#/components/schemas/ListCrossSourceSignalsResponse' '400': description: Validation error content: application/json: schema: oneOf: - $ref: '#/components/schemas/ValidationError' - $ref: '#/components/schemas/JmespathProjectionError' '401': description: Missing or invalid API key. content: application/json: schema: $ref: '#/components/schemas/UnauthorizedError' '403': description: >- API access requires an active subscription (the API key's subscription is inactive or expired). content: application/json: schema: $ref: '#/components/schemas/ForbiddenError' '429': description: Rate limit exceeded. headers: X-RateLimit-Limit: description: Maximum requests allowed in the active rate-limit window. schema: type: string X-RateLimit-Remaining: description: Requests remaining in the active rate-limit window. schema: type: string X-RateLimit-Reset: description: >- Unix epoch milliseconds when the active rate-limit window resets. schema: type: string Retry-After: description: Seconds to wait before retrying the request. schema: type: string content: application/json: schema: oneOf: - $ref: '#/components/schemas/Error' - $ref: '#/components/schemas/RateLimitError' default: description: Gateway or handler error response. content: application/json: schema: oneOf: - $ref: '#/components/schemas/Error' - $ref: '#/components/schemas/GatewayError' components: schemas: ListCrossSourceSignalsResponse: type: object properties: signals: type: array items: $ref: '#/components/schemas/CrossSourceSignal' evaluatedAt: type: integer format: int64 description: >- Timestamp when the aggregator last ran (Unix epoch milliseconds).. Warning: Values > 2^53 may lose precision in JavaScript compositeCount: type: integer format: int32 description: Total number of composite escalation zones detected. description: ListCrossSourceSignalsResponse contains ranked cross-domain signals. ValidationError: type: object properties: violations: type: array items: $ref: '#/components/schemas/FieldViolation' description: List of validation violations required: - violations description: >- ValidationError is returned when request validation fails. It contains a list of field violations describing what went wrong. JmespathProjectionError: description: >- Returned when a REST jmespath projection is invalid or exceeds the expression/output byte limits. properties: _jmespath_error: description: Projection error discriminator and details. type: string original_keys: description: Top-level keys or shape of the unprojected response. items: type: string type: array required: - _jmespath_error - original_keys type: object UnauthorizedError: type: object properties: error: type: string description: Human-readable error message. required: - error description: >- Returned when the API key is missing, malformed, or lacks current API access. ForbiddenError: type: object properties: error: type: string description: Human-readable entitlement failure reason. requiredTier: type: integer format: int32 description: Minimum entitlement tier required for this endpoint. currentTier: type: integer format: int32 description: Caller entitlement tier when known. planKey: type: string description: Caller plan key when known. required: - error description: >- Returned when a PRO-gated endpoint denies access because the caller has no resolved authenticated user, entitlements cannot be verified, or the caller lacks the required entitlement tier. Error: type: object properties: message: type: string description: Error message (e.g., 'user not found', 'database connection failed') description: >- Error is returned when a handler encounters an error. It contains a simple error message that the developer can customize. RateLimitError: type: object description: Returned when a gateway or handler rate limit rejects the request. properties: error: type: string description: Human-readable rate-limit failure reason. required: - error GatewayError: type: object description: >- Returned by gateway infrastructure errors before an RPC handler runs, such as origin, routing, method, authentication, or quota checks. properties: error: oneOf: - type: string - type: object additionalProperties: true description: Gateway error reason or structured gateway failure details. required: - error CrossSourceSignal: type: object properties: id: type: string description: Unique signal identifier. type: type: string enum: - CROSS_SOURCE_SIGNAL_TYPE_UNSPECIFIED - CROSS_SOURCE_SIGNAL_TYPE_COMPOSITE_ESCALATION - CROSS_SOURCE_SIGNAL_TYPE_THERMAL_SPIKE - CROSS_SOURCE_SIGNAL_TYPE_GPS_JAMMING - CROSS_SOURCE_SIGNAL_TYPE_MILITARY_FLIGHT_SURGE - CROSS_SOURCE_SIGNAL_TYPE_UNREST_SURGE - CROSS_SOURCE_SIGNAL_TYPE_OREF_ALERT_CLUSTER - CROSS_SOURCE_SIGNAL_TYPE_VIX_SPIKE - CROSS_SOURCE_SIGNAL_TYPE_COMMODITY_SHOCK - CROSS_SOURCE_SIGNAL_TYPE_CYBER_ESCALATION - CROSS_SOURCE_SIGNAL_TYPE_SHIPPING_DISRUPTION - CROSS_SOURCE_SIGNAL_TYPE_SANCTIONS_SURGE - CROSS_SOURCE_SIGNAL_TYPE_EARTHQUAKE_SIGNIFICANT - CROSS_SOURCE_SIGNAL_TYPE_RADIATION_ANOMALY - CROSS_SOURCE_SIGNAL_TYPE_INFRASTRUCTURE_OUTAGE - CROSS_SOURCE_SIGNAL_TYPE_WILDFIRE_ESCALATION - CROSS_SOURCE_SIGNAL_TYPE_DISPLACEMENT_SURGE - CROSS_SOURCE_SIGNAL_TYPE_FORECAST_DETERIORATION - CROSS_SOURCE_SIGNAL_TYPE_MARKET_STRESS - CROSS_SOURCE_SIGNAL_TYPE_WEATHER_EXTREME - CROSS_SOURCE_SIGNAL_TYPE_MEDIA_TONE_DETERIORATION - CROSS_SOURCE_SIGNAL_TYPE_RISK_SCORE_SPIKE description: >- CrossSourceSignalType enumerates all monitored cross-domain signal categories. theater: type: string description: >- Theater / geographic context (e.g. "Eastern Europe", "Red Sea", "Global Markets"). summary: type: string description: Human-readable summary of the signal. severity: type: string enum: - CROSS_SOURCE_SIGNAL_SEVERITY_UNSPECIFIED - CROSS_SOURCE_SIGNAL_SEVERITY_LOW - CROSS_SOURCE_SIGNAL_SEVERITY_MEDIUM - CROSS_SOURCE_SIGNAL_SEVERITY_HIGH - CROSS_SOURCE_SIGNAL_SEVERITY_CRITICAL description: >- CrossSourceSignalSeverity indicates the urgency tier of a detected signal. severityScore: type: number format: double description: >- Raw severity score used for ranking (higher = more severe).. Warning: Values > 2^53 may lose precision in JavaScript detectedAt: type: integer format: int64 description: >- Detection timestamp (Unix epoch milliseconds).. Warning: Values > 2^53 may lose precision in JavaScript contributingTypes: type: array items: type: string description: 'For COMPOSITE_ESCALATION: list of contributing signal type names.' signalCount: type: integer format: int32 description: 'For COMPOSITE_ESCALATION: number of co-firing signals in theater.' description: >- CrossSourceSignal represents a single detected cross-domain signal event. FieldViolation: type: object properties: field: type: string description: >- The field path that failed validation (e.g., 'user.email' for nested fields). For header validation, this will be the header name (e.g., 'X-API-Key') description: type: string description: >- Human-readable description of the validation violation (e.g., 'must be a valid email address', 'required field missing') required: - field - description description: FieldViolation describes a single validation error for a specific field. securitySchemes: WorldMonitorKey: type: apiKey in: header name: X-WorldMonitor-Key description: User-issued WorldMonitor API key. ApiKeyHeader: type: apiKey in: header name: X-Api-Key description: Alias header for the WorldMonitor API key (X-WorldMonitor-Key). ````