Draft, pending review by counsel. Not yet in effect.

Data license terms

The terms for licensing the ListOnce listing feed, run by Molluso Holdings LLC. Version 2026-10-28 draft. A separate signed agreement with your company, where there is one, comes first.

What you license

  • Every listing on the platform that its seller chose to market publicly, in RESO Web API format, with photos through signed links that expire.
  • Members only listings and Coming Soon listings are never part of the feed. Seller names are never included.
  • The listing brokerage owns each listing. This license lets you display it; it does not transfer ownership.

The rules every data partner follows

  • Show the listing broker and agent on every listing
  • Refresh at least every 15 minutes
  • Take down withdrawn listings within 1 hour
  • No resale of the feed
  • Same terms and price list as every other licensee

Display

  • Show each listing as delivered: do not change the price, status, remarks or the listing broker shown.
  • Show a listing only while it is in the feed. When a listing is withdrawn or leaves the feed, take it down within 1 hour.
  • Fair housing law applies to everything you display and to how you target it.

Keys and limits

  • Your plan sets your request rate. Keep your keys secret, and rotate or revoke one you think is exposed.
  • Requests over your plan's rate are refused until the next minute. Do not work around the limit with extra keys or accounts.

Fees and payment

  • Fees are the published monthly price of your plan, the same for every data partner, billed in advance through Stripe. Prices on the plans page are illustrative until they are set.
  • You can change plan or cancel at any time from your billing page; a cancellation takes effect at the end of the paid month.
  • If a payment fails and is not made good, the subscription lapses and your keys stop working until you pay again.
  • Running costs come out of license fees first; the rest is shared equally per listing among participating brokerages.

Ending the license

  • Either side can end the license. We may suspend access at once for a breach of these rules, such as resale of the feed or showing members only listings.
  • When the license ends, stop displaying listings from the feed and delete the copies you hold within 30 days.

Open questions for counsel

Liability limits, governing law, audit rights and how changes to these terms are notified are not settled yet. The final terms will be put to every data partner before they take effect.