Changelog

All notable changes to the a4b.ai MCP server.

v1.1.0 — June 2026

A4B CMMS is now listed in the ChatGPT app directory. ChatGPT users can connect directly without manual connector configuration: chatgpt.com/apps/a4b-cmms.
Manual connector setup (https://a4b.ai/mcp) remains available for users who prefer it.

Initial public release of the a4b.ai MCP server.

23 Tools for managing assets, workspaces, maintenance tasks, users, and invites
6 Resource Templates providing browsable read-only data via a4b:// URIs
OAuth 2.1 + PKCE authentication with dynamic client registration (MCP spec)
Multi-tenant organization-scoped access tokens
Audit logging with 90-day retention for compliance
Safety annotations on all tools (readOnlyHint, destructiveHint, idempotentHint)
QR code generation for asset labels
Metadata discovery via RFC 8414 and RFC 9728 endpoints