Changelog

Keep track of changes to NexumAPI. This changelog is maintained in a best effort fashion and may not reflect all changes being made.

June 2026

• Added a protected MCP server at /mcp/ for agent-based NaaS and SymXchange workflows

• Added MCP discovery tools for capabilities, configured Syms, SymXchange services, record types, and compact operation schemas

• Added MCP read tools for getting, listing, and searching SymXchange records

• Added MCP FindBy support for global account searches such as last-name, SSN, MICR, and other findBy* operations

• Added MCP PowerOn execution support, including standard and MCW PowerOn operations when write tools are enabled

• Added MCP transaction workflows for posting, reversing, and transaction lookups when enabled for the deployment

• Added MCP domain tools for user management, ECAA authentication, file upload/download, batch jobs, balancing, credit reports, and cash-machine operations

• Added MCP NaaS utility tools for health, keep-alive, host configs, connection status, and supported services

• Added optional MCP write tools for create, update, and delete record workflows when explicitly enabled

• Added SymXchange credential forwarding for MCP via X-NaaS-SymX-Credentials

• Added configurable MCP enablement and write gating through NaaS configuration

December 2025

• Added WSDL caching and SymXchange type generation

• Added generated types for all SymXchange 2022.01 services

• Added generated types for SymXchange 2018.01 through 2021.01 services

• Added generated types for persistent SymXchange endpoints

• Added typed OpenAPI response models for utility endpoints

• Added dynamic type registry support with service discovery

August 2025

• Improved logging and request diagnostics

• Tuned health check thresholds and ALB health behavior

July 2025

• Added the main API key requirement

• Added passthrough request tests and message ID logging

• Added passthrough authentication fixes

• Fixed protocol selection for passthrough routes

• Improved preflight request handling and logging

June 2025

• Added retry logic for initialization and service calls

• Added unique instance ID checks during startup

May 2025

• Added recurring health check jobs

• Updated health check behavior

• Added runtime identifiers to logs for better traceability

March 2025

• Added Fargate execution support for NaaS

• Added container health checks and request-count based autoscaling

• Added support for running warmers across execution types

December 2024

• Added retries for SOAP client creation

• Added a default timeout for SOAP client creation

• Added a custom logger with trace-level logging

• Improved stack trace logging for uncaught exceptions

• Reduced SOAP client creation log noise

August 2024

• Switched to REST API Gateway

• Added custom HTTP client timeout support

• Added SymXchange connection status checks

• Improved invoke and passthrough error messaging

• Added API key generation image support

July 2024

• Added supported-services route

• Added self-hosted image generation for multiple architectures

• Added logging for passthrough requests

• Added default tenant identifier handling for passthrough routes

• Added support for switching SymXchange calls to HTTP where required

• Patched SOAP parsing for SymXchange Version_ elements

• Improved traceback and error logging

June 2024

• Rebuilt NaaS on the Python/FastAPI runtime

• Added direct SymXchange connection support

• Added async request handling

• Added case-insensitive routes

• Added correlation IDs, timing middleware, and structured error handlers

• Added CORS headers to SymXchange responses

• Added passthrough routes

• Added Form URLEncoded request support

• Added custom field support

• Added /health endpoint for NaaS status

• Added auth to passthrough routes

• Added support for /persistent SymX services

• Fixed dynamic namespacing for recursive child elements

• Improved Datadog logging and health invocation handling

March 2024

• Added support for Dynamic Custom Logging fields

• Updated default response formatting

February 2024

• Added more performance improvements

• Improved graceful logging behavior

January 2024

• Added major performance improvements

• Added asymmetric API key verification

• Added request ID logging on errors

October 2023

• Added Form URLEncoded content-type support to NaaS

• Added support for nested fields in Form URLEncoded requests

• Added SymXchange native passthrough mode to capture external vendor logs