Every ordinary thing near El Segundo, priced.

All estimates so far. Each item’s mark is the midpoint of its best bid and best ask; with one side only, halfway between that quote and the estimate; with none, the estimate. Not a security, a fund or a price anyone can trade.

Used prices are from the Salvation Army and Goodwill value guides unless an item says otherwise. On-hand counts are round guesses, labeled as such in the catalog.

Occupied office space ÷ 165 square feet a person (JLL 2025) = seats; 60% of seats as cubicles is an assumption. Whole markets only: no building, tenant or company is named or priced. Square footage from Kidder Mathews, Los Angeles office market, 2Q 2026; space per person from JLL Global Occupancy Planning Benchmark Report 2025, via HR Dive (July 22, 2025).

Standing bids and surplus asks

Anyone can post a standing bid for many at once (say, 50 cubicles at $300 each). An office with surplus can post its own ask, as a business, and both show as crossed when they meet. Here is how one might look, with a made-up office:

1. Draw the circle. Pick a center and a radius. Ours is 25 miles from El Segundo City Hall. The county (3,416,449 households, 3,987,736 jobs, from Census QuickFacts) stands in for it.
2. Count the containers. Households hold most things. Offices hold the rest. We count desk jobs as 35% of all jobs, an assumption you can change.
3. Guess what each one holds. Twenty pens in a kitchen drawer, eight pairs of shoes, one sofa. Write each guess down as a guess.
4. Price it used. Thrift value guides publish a low and a high for ordinary things. Low is the bid, high is the ask.
5. Price it new. Read a few store pages on one day and keep the date. The cheapest per unit is the new ask.
6. Open the book. Let neighbors post what they would pay or take. When real quotes land, they move the mark and the guesses fade.

Everything else is arithmetic. Units on hand = (per household × households) + (per worker × desk workers). Value = units × the midpoint of bid and ask. Our whole model is one file, catalog.json: copy it, change the numbers to your town’s, and you have your own index.

• catalog.json: every item, estimate, source, on-hand count and way to get one.
• GET /api/v1/goods: what you can do, the limits and the proof of work.
• GET /api/v1/goods/live: best bid, best ask and mark for every item, and the index.
• POST /api/v1/goods/draft: a bot drafts a quote and gets a confirm link. Its person opens the link here and taps Post it. Nothing a bot sends is public until then.

Coming next: store feeds (Ralphs through the Kroger Products API once a key is set up), office stock by district, used-car prices, and a daily market report with an RSS feed.

1. The Salvation Army Thrift Stores, Donation Value Guide (low and high). A tax-deduction guide of typical thrift values. The page carries no date. Bid = its low, ask = its high. Checked 2026-11-01.
2. Goodwill, Donation Value Guide (PDF, file dated Oct 13, 2023). Thrift shelf values. Checked 2026-11-01.
3. Michael Hoydich’s example, Nov 1, 2026: “how much the market ask for a toaster is a dollar”. Used as the toaster’s opening bid. Checked 2026-11-01.
4. Store pages read Nov 1, 2026 (Staples, Walmart, Target). Online prices. Shelf prices near El Segundo may differ. Checked 2026-11-01.
5. FindOfficeFurniture, cost per cubicle station guide. New budget tier $800 to $1,500 a station; pre-owned cuts 40 to 60%. Used range derived: $320 to $900. Checked 2026-11-01.
6. U.S. Census Bureau QuickFacts, Los Angeles County. Households 2020-2024: 3,416,449. Total employment 2023: 3,987,736. Checked 2026-11-01.
7. El Segundo Economic Development, community snapshot. “Daytime population peaks at approximately 70,000.” Households: 7,070 (2021 Census, per the page). Checked 2026-11-01.
8. USPS Office of Inspector General, Focus on Next Generation Delivery Vehicles (updated January 2025). “Through Fiscal Year 2028, USPS plans to purchase 106,480 new delivery vehicles, including at least 60,000 NGDVs.” “Total investment will be $9.6 billion.” Checked 2026-11-01.
9. Reason, “10 Years and $3 Billion for a New Mail Truck?” (Sept 13, 2024). The March 2022 order of 50,000 NGDVs “was valued at $2.98 billion”, about $59,600 a vehicle by the article’s math. Checked 2026-11-01.
10. Toyota, model pages (starting MSRP). 2026 Camry from $29,300; Corolla from $22,175; RAV4 from $28,675, as printed. Checked 2026-11-01.
11. California Energy Commission, light-duty vehicle population (data as of Dec 31, 2025). Has county and make counts in a spreadsheet this check could not open. Until it is read, the Toyota count is an assumption. Checked 2026-11-01.
12. Kidder Mathews, Los Angeles office market, 2Q 2026. El Segundo total inventory 18,288,031 SF; total vacancy 16.9%. South Bay 56,530,428 SF. Checked 2026-11-01.
13. JLL Global Occupancy Planning Benchmark Report 2025, via HR Dive (July 22, 2025). Companies target 132 square feet per person, from 165 today. Checked 2026-11-01.
14. Claude (Anthropic), stated assumption. A round guess to start from. Quotes and better sources replace it. Checked 2026-11-01.

Craigslist is not a source: its terms forbid copying or showing listings, even by hand. Report a quote that shouldn’t be here through tips and corrections and the site owner takes it down.