Every charge, itemized. The total is $0.
For brokers and owners listing property, and for the buyers and tenants looking for it. No listing fee, no commission, no subscription, and nothing to renew.
Selling your own building? List it yourself, free. No broker needed.
| Charge | Price |
|---|---|
| Listing a property | |
| Publishing a listing No listing fee, no subscription, and no paid tiers, for brokers and owners alike. | $0.00 |
| Placement in search Results sort newest first, or by the sort the searcher picks. Nobody pays to rank higher. | $0.00 |
| Leads Every inquiry arrives in full, in your email and in your leads inbox. | $0.00 |
| Listing done for you Email us the flyer, and we build the listing for you to approve. | $0.00 |
| Finding property | |
| Search, the map, and every listing Search, open any listing, and contact the broker or owner without signing up. | $0.00 |
| Saved searches and alerts An email when a new listing matches what you saved. | $0.00 |
| Either side | |
| Commission on the deal No cut of the sale or the lease. | $0.00 |
| Building data Census demographics, FEMA flood and hazard risk, EPA records, and the county's public record, wherever those sources cover the property. | $0.00 |
| Our AI assistant Hand it a flyer and it drafts your listing, changes it when you ask, and publishes when you confirm. | $0.00 |
| Your AI assistant Ask your AI assistant to search listings, no account needed. Sign in through it, and it can create, update, and publish your listings too. | $0.00 |
| Renewal Every account is free, so there is no plan to cancel. Delete your account whenever you like. | $0.00 |
| Total due | $0.00 |
What you pay elsewhere
The bottom line from each of our side-by-side comparisons, with the fine print that goes with it. Each comparison lists its sources, dated.
LoopNet®
6-month minimum
Gold, Platinum, and Diamond ads run at least six months, then renew monthly unless cancelled 14 days ahead. Prices are not published, and CoStar reports the average price per listing rose in 2025.
LoopNet, compared line by lineCrexi®
Paid plans
Higher placement, full lead details, and Crexi AI come with paid plans. Its plans page lists no PRO prices; Crexi Intelligence runs $299 a month.
Crexi, compared line by lineCoStar®
$8,119 a month
What the City of San Diego pays for 17 users, under a contract from December 2025.
CoStar, compared line by lineMoody's CRE
$99 a month
For unlimited listings on the Marketplace. The subscription bills automatically at each renewal, and unused periods are not refunded.
Moody's CRE, compared line by line
LoopNet® and CoStar® are registered trademarks of CoStar Realty Information, Inc., a subsidiary of CoStar Group, Inc. Crexi® is a registered trademark of Commercial Real Estate Exchange, Inc. CoStar®, CoStar Group®, and LoopNet® are registered trademarks of CoStar Realty Information, Inc., a subsidiary of CoStar Group, Inc. MOODY'S® is a registered trademark of MIS Quality Management Corp., a subsidiary of Moody's Corporation. Moody's CRE is offered by Moody's Analytics, Inc. SPACEXPLORATION is not affiliated with CoStar Group, Commercial Real Estate Exchange, Inc., or Moody's, and none of them has sponsored or endorsed this page. If a figure has changed, write to hello@spacexploration.com and we will correct it.
FAQ
Questions about cost
Why is it free?
A listings market is only as useful as what is listed on it. Free listings put more property in front of more buyers, and more buyers make every listing worth more. So listing, searching, and the tools around them cost nothing.
Is there a limit on how many properties I can list?
No. List every property you have, for sale or for lease. Each listing stays up until you take it down.
Do I need a credit card?
No. There is nothing to pay for, so signing up does not ask for payment details.
Does my AI assistant cost anything?
Not from us. Connecting it to SPACEXPLORATION and using it here is free. If the assistant itself has a paid plan, that is between you and the company that makes it.
Does the built-in AI assistant cost anything?
No. It comes with every account: hand it a flyer and it drafts your listing, or ask it about a property. It has a daily allowance, which resets at midnight UTC.
Join free, and bring your AI assistant.
For people
Brokers, owners selling or leasing their own property, buyers, and tenants. An account lets you list property, save searches, and get an email when a new listing matches.
For your AI assistant
Connect Claude, ChatGPT, Grok Bot, OpenClaw, or another AI assistant. Ask it to find property in plain English, no account needed, or sign in through it to create and manage your listings.
Adding it by hand? Paste this connector address:
https://spacexploration.com/mcp