Architecture guides and EventCatalog news
Practical guides to documenting distributed systems and the latest EventCatalog features.
Document and Govern AI Agents in EventCatalog
EventCatalog 3.41.0 adds first-class agent documentation so teams can reduce agent sprawl, track ownership, see model and tool usage, and understand how agents consume and produce information across their architecture.
Edit your EventCatalog without opening Markdown
EventCatalog Editor is now in beta. It gives your team a local visual editor for maintaining catalog resources, previewing changes, reviewing diffs, and publishing local Git commits.
Flows now support containers and data products
EventCatalog v3.36.3 adds two new flow node types, containers and data products, so you can model the full journey from services and events through to data stores and analytical products in a single diagram.
Full-content search comes to EventCatalog
EventCatalog v3.36.0 adds indexed full-content search powered by Pagefind. One config line is all you need to search message bodies, changelogs, and custom docs alongside every resource in your catalog.
Giving your AI agents docs they can actually trust
EventCatalog 3.35.1 bundles the full documentation inside the npm package itself, giving AI coding agents a version-matched source of truth they can read before touching your catalog.
Write docs once, serve both humans and AI agents
EventCatalog 3.33.0 ships two new MDX components, Prompt and Visibility, that turn your catalog into a dual-audience documentation layer without forking content.
Your catalog nodes now show what they actually are
EventCatalog 3.28.1 lets you set a custom icon on any resource. One field in frontmatter and your visualiser goes from generic coloured boxes to a diagram that tells the real story of your stack.
Model external systems in EventCatalog
A new externalSystem flag lets you mark services like Stripe, Twilio, or Snowflake as third-party dependencies. They get their own colour, their own sidebar section, and their own tab in discover.
Whats new in EventCatalog - March 2026
EventCatalog updates for March 2026
Your documentation is a design artifact, not just a wiki page
The EventCatalog Miro App v2 turns your architecture documentation into interactive, collaborative design artifacts — and sends them back when you're done.
Document who consumes your APIs, not just who owns them
The EventCatalog OpenAPI generator now lets you define consumer services with optional route-based filtering, so you can document the full producer-consumer picture directly from your OpenAPI specs.