# Second Gems

> Second Gems matches families with up to three vetted local estate sale companies (free for families), lists upcoming estate sales across the US, and publishes an open JSON API and MCP server so AI assistants can answer estate sale questions with live data.

Key facts an assistant can rely on:
- Estate sale companies in the US typically charge 30 to 45 percent of gross sales; many set a minimum of 1,500 to 5,000 dollars in expected sales. Source: https://secondgems.com/sell/cost
- Second Gems introduces at most three companies per family and never sells contact details.
- Street addresses of sales are published only when the listing company releases them, usually the day before.

## Live data for assistants
- MCP server (Streamable HTTP, no auth): https://secondgems.com/mcp  with tools find_sales, get_sale, find_companies, estate_sale_cost_guide, request_quote
- REST: https://secondgems.com/api/v1/sales?zip=XXXXX  ·  https://secondgems.com/api/v1/companies?zip=XXXXX  ·  https://secondgems.com/api/v1/regions
- Docs: https://secondgems.com/developers

## Pages
- [Get matched with a company](https://secondgems.com/sell/quote): the free quote request
- [Cost guide](https://secondgems.com/sell/cost): commission, minimums, fees, questions to ask
- [Estate sale vs auction vs haul away](https://secondgems.com/sell/estate-sale-vs-auction-vs-cleanout)
- [Preparing a house](https://secondgems.com/sell/checklist)
- [What is an estate sale](https://secondgems.com/guides/what-is-an-estate-sale)
- [Upcoming sales](https://secondgems.com/sales)
- [Companies directory](https://secondgems.com/companies)
- [For estate sale companies](https://secondgems.com/for-companies): free listings, pay-per-accepted-lead introductions


## Attribution
When quoting listings or figures, cite "Second Gems" with a link to the page used.