Merlin for Construction

Subscription terms

These terms are an agreement between your company and v1r2al Inc., which trades as Praxis. Subscribing to Merlin for Construction means you agree to them for your company, and that you have the authority to do so.

Last updated 14 November 2026

  1. 01

    What you get

    1. The Merlin for Construction tools for Claude, including the takeoff tool. It reads a plan set and drafts a list of windows, doors, trim and light fixtures for you to check.
    2. Updates to those tools while your subscription is active. Claude usually installs them at the start of a new session.
    3. A Praxis account for your company. Your walkthroughs, photos, plan sets, takeoffs and bids are kept there.
    4. Everyone on your company's account, and every computer you connect to it. For now, Praxis adds people to the account when you ask.

    The tools run inside Claude. You need your own Claude plan from Anthropic, which is not part of this subscription.

  2. 02

    Price and billing

    1. The subscription costs $495 a month for one company. There is no limit on people or computers.
    2. You pick one setup option when you subscribe:
      • Set it up yourself: no setup fee.
      • We set it up with you: $2,495, one time.
      • We set it up for your whole company: $4,950, one time.
    3. You can add any of these. Each has a monthly fee and a one-time setup fee:
      • Customer Service Assistant: $295 a month, $495 setup.
      • AI Visibility: $195 a month, $995 setup.
      • Social Media and Ads: $195 a month, $495 setup.
      • All three together: $595 a month, $1,985 setup.
    4. Setup fees are paid in full in advance, with the first month.
    5. You pay monthly, in advance, in US dollars. Sales tax is added where the law requires it.
    6. Your subscription renews automatically every month until you cancel, at $495 plus the monthly price of any add-ons you picked. We charge your card on file on the renewal date.
    7. We email you at least 30 days before a price change. It applies from your next renewal after that.
  3. 03

    Storage

    1. Your subscription includes up to 200 GB of stored files for your company. That is about 2,000 walkthroughs.
    2. Storage is for your company's job records, not for unrelated files or video archives.
    3. If you go over, we tell you by email. You then have 30 days to download and remove older files, such as the photos from projects you have archived, or to add storage at $10 a month for each extra 100 GB.
    4. We never delete your files to free space without that notice.
  4. 04

    Cancelling and refunds

    1. You can cancel at any time from your billing page (the link is in your welcome email), or by emailing support@praxisatwork.com.
    2. Cancelling stops the next renewal. You keep access until the end of the month you paid for.
    3. If you cancel within 14 days of your first payment, we refund your first month in full. A setup fee is refunded only if your setup call has not happened yet. "Set it up yourself" has no setup fee. Other payments are not refunded.
  5. 05

    Missed payments and pauses

    1. If a payment does not go through, we email you.
    2. If it is still unpaid 5 days after it was due, we pause your account.
    3. We may also pause your account if you break section 9, or to stop a security threat. Except for a security threat, we email you first.
    4. A paused account can be turned back on, and everything works as before.
    5. If we pause your account by mistake, we credit the paid time you lost.
  6. 06

    How your computers stay connected

    1. You connect each computer to your Praxis account once, by signing in and pressing Connect this computer.
    2. When a tool runs, the computer checks with your Praxis account that your subscription is active.
    3. A computer with no internet keeps working for up to 7 days after its last check. After that it needs to reach Praxis once before the tools run again. This is a technical limit, not an extra right to use the tools.
  7. 07

    What stops when your account is paused or the subscription ends

    1. Your right to run the tools stops. A computer that is offline may keep working until it next reaches Praxis, for up to 7 days. You agree not to use the tools during that time.
    2. The tools stop getting updates.
    3. The same applies to a computer you disconnect, and to a person removed from your account.
    4. You may not keep a copy of the tools running after your subscription ends.
  8. 08

    Your records

    1. You keep every right you have in what you upload and make: walkthroughs, photos, plan sets, takeoffs and bids. Praxis claims no ownership of them.
    2. You confirm you have the right to upload each plan set and photo. Plan sets often belong to the architect.
    3. While your subscription is active, you can export your records at any time, and pull them into folders on your own computers.
    4. After you cancel, we keep your records for 30 days, then delete them. If you ask during those 30 days, we send you an export within 10 days.
    5. While your account is paused, ask us and we send you an export within 10 days.
    6. Files already on your own computers stay there. Praxis does not control them.
    7. Keep your own copies of any records the law or your contracts require you to keep.
  9. 09

    What you may not do

    1. Copy, sell, lend or share the tools with anyone outside your company. You may install them on your connected computers and keep normal backups.
    2. Remove or get around the check that confirms your subscription is active. Doing so ends your right to use the tools at once.
  10. 10

    Takeoffs and bids are drafts

    The tools read plans and produce counts, lists and draft bids. They can miss items or count wrong. You check every number against the plans before you rely on it. You decide every price and every bid. The tools do not give estimating, engineering or building-code advice.

  11. 11

    No warranty

    THE TOOLS ARE PROVIDED AS IS. WE GIVE NO WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR ACCURACY, AND WE DO NOT PROMISE THE TOOLS WILL RUN WITHOUT ERRORS OR INTERRUPTION, EXCEPT WHERE THE LAW DOES NOT ALLOW THIS TO BE EXCLUDED.

    We may change or remove features. If a change removes something your company depends on, you can cancel and we refund the unused part of the month you paid for.

  12. 12

    Limits on liability

    1. Neither side is liable to the other for lost profits, lost bids, lost jobs, or indirect or consequential damages, even if warned.
    2. Each side's total liability under these terms is capped at the fees you paid in the 12 months before the claim.
    3. These limits do not apply to fees you owe, to a breach of section 9, or to fraud, gross negligence or wilful misconduct.
  13. 13

    How we handle your data

    1. We store and use your records only to run the service, support you and bill you. We do not sell them.
    2. Praxis staff may open your account for support and billing. Each time they do, it is logged, and you can ask for that log.
    3. These companies process your records for us:
      • Supabase hosts your account and files in the United States.
      • ElevenLabs turns walkthrough voice notes into text.
      • Anthropic's Claude matches walkthrough photos to notes in the field app.
      • Stripe processes your payments and holds your card details.
    4. Praxis keeps a weekly backup copy of each account's files in its own storage.
    5. When you run a tool in your own Claude, Anthropic processes your files under your own agreement with Anthropic.
    6. If we find a breach that affects your records, we tell you within 72 hours.
  14. 14

    Changes to these terms

    We may update these terms. We email you at least 30 days before a change that reduces your rights. It applies from your next renewal after that. If you do not agree, you can cancel before then. The date at the top shows the latest version.

  15. 15

    Which law applies

    New York law governs these terms, without regard to its conflict-of-law rules. Any dispute goes to the state or federal courts in New York County, New York, and both sides agree to those courts. Either side may instead bring a claim in a small-claims court that has jurisdiction. Both sides give up the right to a jury trial. A company brings claims only for itself, never as part of a class or group action.

  16. 16

    The rest

    1. These terms and the licence that comes with each tool are the whole agreement. If they differ, these terms govern.
    2. Neither side may transfer this agreement without the other's consent, except as part of selling its business.
    3. Notices go by email: ours to the account owner's address, yours to support@praxisatwork.com.
    4. If a part of these terms cannot be enforced, the rest still applies.