> ## Documentation Index
> Fetch the complete documentation index at: https://docs.productbrain.com/llms.txt
> Use this file to discover all available pages before exploring further.

# June 22, 2026

> Start free, no clock, standing API and MCP access, a live canvas wherever your agent works, and one-click OKF export.

## Highlights

### A free tier with no expiry

You can now use ProductBrain free, with no trial countdown. The free tier includes **standing API and MCP access**, so your own agent can read and write the plan and run the [planning workflow](/api-reference/introduction) with your own LLM, no AI credits spent. It's the full machine-facing surface, not a teaser.

A free project holds up to **50 nodes**. It's a soft cap, checked when you add a node, so you can always delete to make room. It's there to keep the free tier sustainable, not to start a clock. Outgrow it and the paid tiers lift the cap.

Nothing to lose by trying it: shape a real plan, hand it to your agent, and see whether it earns a place in how you build. Start in the [Builder quickstart](/guides/builder-quickstart).

### The live canvas comes with the API, free included

Realtime rides with the machine-facing surface: on Builder plans, **including the free tier**, you drive the canvas from the CLI or your own agent and watch it update live. That loop doesn't start behind a paywall. (Strategist is the solo in-app experience. AI credits in place of the API and live canvas.)

### Export your plan as OKF

Alongside JSON, you can now export a project as an **Open Knowledge Format** bundle. Portable, typed Markdown that any agent can read. Your strategy is yours: take it anywhere, any time.

## Other improvements

* **Lapsed plans fall back to free, not locked out.** If a paid plan lapses, your account drops to the free tier's rules, never read-only, never a lockout. You keep working under the free cap, with a reminder to renew.


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