What Acta is

Acta (Latin: things done) is a project management and documentation server. It holds two things that usually live in two products:

• Spaces: kanban boards whose cards have stable keys (ENG-142) that survive being moved, renamed and re-listed.
• Documents: a Markdown wiki with a page tree, versions and cross-references to cards.

They are in one server because they refer to each other constantly. A plan cites a decision; a decision record cites the cards that implemented it. When those live in two products the references are URLs that rot, and nobody notices until the link is dead.

Who it is for ​

Teams working with AI agents. Acta treats an agent as an actor, not as a borrowed human account. Every card, comment and document edit records who made it, and an agent's work is attributed to the agent. The MCP endpoint exposes the same capability the UI has.

What it is not ​

It is not a time tracker, a CRM, or a support desk. It is not an issue tracker for public bug reports from strangers. It has no Gantt-chart contractor scheduling, no resource levelling and no billing.

It also does not try to be a chat application. Comments exist on cards and documents because a decision needs to be recorded next to the thing it decides, not so that you can hold conversations in it.

The shape of it ​

┌──────────────┐        ┌──────────────┐
│  Web app     │        │  Agent       │
│  (Vue SPA)   │        │  (MCP)       │
└──────┬───────┘        └──────┬───────┘
       │  /api/v1              │  /mcp
       └───────────┬───────────┘
                   ▼
        ┌─────────────────────┐
        │  Acta server        │
        │  Hono on Bun        │
        │  ─────────────────  │
        │  items · documents  │
        │  events · rules     │
        │  webhooks · search  │
        └──────────┬──────────┘
                   ▼
          SQLite (or D1) + blobs

The MCP endpoint is not a wrapper around a subset of the API. It is a second client of the same services, which is why an agent can do what you can do.

Built by Nubisco ​

Acta is built and maintained by Nubisco, a Portuguese software company that builds the tools it needs and opens the ones useful to other people.

If you need something built around Acta, talk to us.

Where to go next ​

• Concepts: spaces, cards, keys, actors, events.
• Working in Acta: the day-to-day of the web app.
• Goals: what the work is for, and how it stands.
• Connect an agent: point your own editor or assistant at your workspace, acting as you.
• The MCP endpoint and its tools: what an agent can do once it is connected.