Components, templates, design and tools for agentic work Private alpha · free for now

One plan for the whole agency.

The agency picks Free, Pro or Agency once, and that plan carries Baselumen, the Stacklumen Hub and Terminal for every workspace it holds.

Baselumen is in private alpha. Billing is not switched on: signed-in accounts use everything free, and nothing is charged. The prices below apply once it is, and you will get notice first.

$0
Free, to build and stage
$24/mo
Pro, for one person
$29.99/mo
Agency, for a team
14 days
Agency trial, no card

One plan, the whole suite. Chosen once, for the agency.

Billing interval

The same plan covers Baselumen, the Hub and Terminal, in every workspace, on one invoice. For the suite-wide view, see Stacklumen pricing.

Free

$0 No card needed $0 No card needed

Build and stage without paying. One editor, one workspace.

  • 1 editor seat and 1 workspace
  • Every component's HTML and CSS, previewed and copied
  • The free set of 24 components in React, Vue, Svelte and Component Studio
  • 10 audit runs a month
  • 10 designs in the design library
  • The Hub and Terminal on the same plan

Pro

$24/mo or $20/mo billed yearly $20/mo billed yearly, $240 a year

For one person running client work.

  • 1 editor seat and 1 workspace
  • All 185 components in every build, and Component Studio on any of them
  • MCP, and the baselumen CLI when it ships
  • 200 audit runs a month
  • Unlimited designs in the design library
  • The Hub and Terminal on the same plan

Agency

14-day trial
$29.99/mo or $24.99/mo billed yearly $24.99/mo billed yearly, $299.90 a year

For a team, with room to add people and workspaces.

  • Everything in Pro
  • 3 editor seats and 2 workspaces included
  • Extra seats $18/mo each, extra workspaces $50/mo each
  • Clients and client guests: shared work, chat and approvals
  • 1,000 audit runs a month in each workspace

Always free.

Viewers
Free on every plan
Read-only members never take a seat. They browse and copy HTML and CSS.
Client guests
Free on every plan
Someone at a client company, seeing only the work shared with them.
Instant tools
Free 5 tools
Converters and generators run in your browser and never spend a run.
Drawing
Free on every plan
The designer is never limited. The Free cap counts designs kept in the library.

A run is one audit. Instant tools are free.

An audit is one of the 9 tools that take a URL and fetch the site; Advanced Audit runs each grader as its own run. The 5 instant tools run in your browser and never count.

  • Free. 10 audit runs a month.
  • Pro. 200 audit runs a month.
  • Agency. 1,000 audit runs a month in each workspace.

Audit

  • Graders5
  • Runs spent5

Each grader is a full run and counts toward your allowance. The scores in this drawing are illustrative.

Advanced Audit: one URL through every grader at once, each saved as its own run. The scores drawn here are illustrative, not a real result. The drawing is the Advanced Audit tool. A URL is entered and Audit site pressed; the 5 graders — SEO + AEO, Accessibility, Security Headers, Schema, Maintainability — and optionally Speed run three at a time, each card filling with its score, and an overall mean appears above them.

Plan by plan. What each one reaches in Baselumen.

Every plan opens every screen. What changes is which builds you take, how many audits you run, how many designs you keep, and whether agents and clients come with it.

What each plan includes in Baselumen and the rest of the suite
Free $0$0 Pro $24/mo$20/mo Agency $29.99/mo$24.99/mo
Seats and workspaces
Editor seats 1 1 3 included
Workspaces 1 1 2 included
Extra seats and workspaces Not included Not included $18 and $50 a month each
Viewers and client guests Free Free Free
Components
Browse, preview, copy HTML and CSS Included Included Included
Copy for Terminal Included Included Included
React, Vue and Svelte builds The free set, 24 All 185 All 185
Component Studio On the free set On every component On every component
Your own custom components Included Included Included
Tools and audits
5 instant tools Included Included Included
Audit runs a month, across 9 audits 10 200 1,000 per workspace
Reports and run history Included Included Included
Designer and design library
Drawing in the designer Included Included Included
Designs kept in the library 10 Unlimited Unlimited
Push a design to a Terminal site Included Included Included
Agents
MCP server Not included Included Included
baselumen CLI (in active development) Not included Included Included
Clients
Clients, client guests and the CRM Not included Not included Included
The rest of the suite
Terminal staging sites Up to 50 live Unlimited Unlimited
Stacklumen Hub Projects and team chat Projects and team chat With clients and the CRM

Audit runs are counted in each workspace by the calendar month. Templates sit outside the plans: each is licensed to a workspace from the Marketplace.

Stage free. Pay per site on its own domain.

What you build from Baselumen ships in Terminal. Every site publishes to its free staging address on every plan; a site on its own domain takes a site plan, billed one site at a time on the agency's one invoice.

Staging

Free every site Free every site

Every Terminal site publishes to its free Stacklumen address.

  • A small Stacklumen badge
  • Not indexed by search engines
  • 2 CMS collections and 100 items

Basic

$18/mo per site, or $15/mo billed yearly $15/mo per site, billed yearly, $180 a year

The site on its own domain, found by search.

  • Your own domain
  • No badge
  • Indexed by search engines
  • 2 CMS collections and 100 items

CMS

Content API
$30/mo per site, or $25/mo billed yearly $25/mo per site, billed yearly, $300 a year

For a site that runs on its content.

  • Everything in Basic
  • 20 CMS collections and 10,000 items
  • The live Content API, for your own front ends

Add-ons.

Extra editor seat
$18/mo or $15/mo billed yearly
$15/mo billed yearly, $180 a year
On Agency. Counted once across the agency.
Extra workspace
$50/mo or $41.67/mo billed yearly
$41.67/mo billed yearly, $500 a year
On Agency. Each workspace has its own library, clients and runs.
App routes
$15/mo per site, or $12.50/mo billed yearly
$12.50/mo per site, billed yearly, $150 a year
Your own app, mounted under a route of a Terminal site.
Headless CMS
Free up to 2 collections and 100 items
Free up to 2 collections and 100 items
The Content API with no hosted site. Past that, the CMS site plan.

Common questions. Plainly answered.

The alpha

  • Is Baselumen free right now?

    Yes. Baselumen is in private alpha and billing is not switched on, so a signed-in account uses every plan's features for free and nothing is charged. We will give notice before billing is switched on, and you will see the price and choose before anything is charged.

  • What still applies during the alpha?

    Who you are, not what you pay. Viewers copy HTML and CSS but not the other builds, client guests are not given the library or the tools, rate limits stay on, and templates are still licensed one at a time.

  • Is there a trial?

    Each agency may take one 14-day trial of the Agency plan, with no card, and nothing is charged when it ends. It opens when billing is switched on; until then everything is free anyway.

Plans

  • Who is the customer?

    The agency. It holds one plan, Free, Pro or Agency, and that plan covers Baselumen, the Stacklumen Hub and Terminal in every workspace the agency has. There is no separate plan for any one app.

  • How does yearly billing work?

    Plans, site plans and add-ons all bill yearly for the price of 10 months: 2 months free.

  • Who takes a seat?

    Editors, counted once across the agency. Viewers and client guests never take a seat.

  • What happens if we leave Agency?

    Nothing is deleted. The agency keeps every client, guest and record it has and can still read them; only new ones wait for the plan.

  • Where do we change the plan?

    In Billing on Stacklumen. Baselumen shows the plan under Workspace, Billing, and links there; it sells nothing itself. Prices are in US dollars and exclude tax.

Baselumen

  • What does Free include in the library?

    Every component's HTML and CSS, browsed, previewed and copied. The React, Vue and Svelte builds and Component Studio reach the free set: 24 components chosen to build a whole page, from the bar and hero to the sections, a form and the footer.

  • Are templates part of a plan?

    No. Each template is licensed to one workspace from the Marketplace, on any plan. Store items are priced from $1 to $149, and a creator keeps 80% of each sale.

  • What counts as a run?

    An audit: one of the 9 tools that take a URL and fetch the site. The 5 instant tools run in your browser and never count.

  • Is the designer limited?

    Drawing never is. Free keeps 10 designs in each workspace's design library, and archived designs do not count. Pro and Agency keep as many as you like.

  • Can an agent use Baselumen?

    Over MCP, and through the baselumen CLI once it ships, on Pro and Agency. Agents run on your own AI plan, so nothing is billed for model use.

Start on Free. Everything is open today.

Free during the private alpha, with notice before anything changes.