API Changelog

Infrastructure hardening, authentication improvements, and CORS reliability.

• FixedResolved cross-origin request failures affecting all Insights Service endpoints. Replaced third-party CORS middleware with deterministic header management.
• FixedFixed cross-origin cookie authentication for dashboard sessions. Cookies now use SameSite=None with Secure flag for cross-domain requests.
• ImprovedAdded structured error logging for JWT verification failures. Auth errors now include trace IDs for easier debugging.
• ImprovedHardened CORS policy across all services. Removed wildcard *.run.app patterns in favor of explicit origin allowlists with environment variable overrides.
• ImprovedHMAC service-to-service authentication now defaults to enforce mode in production (fail-closed).
• FixedFixed ML service client HMAC signing to use correct signInternalRequest API.

API key authentication, GraphQL support, and compliance modules.

• NewAPI key authentication with RBAC scopes and key rotation.
• NewGraphQL API with query depth limiting, complexity analysis, and introspection controls.
• NewFraud Signal Intelligence module with advisory signals and case management.
• NewKYC/AML Orchestration with deterministic trigger rules and compliance tracking.
• ImprovedCircuit breakers and resilient fetch across all internal service calls.
• ImprovedAudit logging across all six microservices for regulatory compliance.
• Breakingx-tenant-id header deprecated in favor of Authorization: Bearer token. Tenant is now derived from API key.

Initial public release of the Elysium Nexus API.

• NewInitial public release of Elysium Nexus API.
• NewBusiness Health Index (BHI) calculation endpoints.
• NewNext-Best-Action (NBA) recommendation engine.
• NewWorkflow automation with step-by-step execution.
• NewReport generation (JSON, CSV, HTML/PDF).
• NewMulti-tenant isolation via x-tenant-id header.

Workflow scheduling and performance improvements.

• NewAdded workflow scheduling with cron expressions.
• NewEvent-triggered workflow execution.
• ImprovedImproved BHI calculation performance (3x faster).
• FixedFixed pagination for large customer lists.

Portfolio analytics and enhanced recommendations.

• NewPortfolio-level BHI summary endpoint.
• NewCustomer BHI history with trend analysis.
• ImprovedEnhanced NBA recommendations with confidence scores.
• BreakingRenamed /bhi/compute to /bhi/calculate-from-db.