Worth
Find what anything is worth: resale value, used and new prices, and where to buy or sell it.
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
claude mcp add --transport http worth 'https://worth.area21.io/mcp?src=mcp_registry'{
"mcpServers": {
"worth": {
"type": "http",
"url": "https://worth.area21.io/mcp?src=mcp_registry"
}
}
}Documentation
From the project's README on GitHub, refreshed weekly. Links open on GitHub.
Contents
Worth
Never overpay, never undersell.
Ask your AI "what's it worth?" about anything (thrift finds, collectibles, electronics, vintage) and get its resale value, used price and new price, plus links to the best place to buy or sell.
What you get
- A fair price in seconds. Name it or snap a photo; get an estimate with a confidence score.
- Know if used is worth it. See new vs. used vs. resale side by side, and how much you save or can earn.
- The best place to buy or sell. Direct links to stores and marketplaces, matched to what you want to do.
Great for thrift flipping, reselling for beginners, pricing yard sale items, or deciding whether to buy used instead of new. No account, no sign-in. Prices come from live listings and are estimates, not offers.
Install (one click or one line)
Server URL (Streamable HTTP, no auth): https://worth.area21.io/mcp
Claude
Settings → Connectors → Add custom connector → paste:
https://worth.area21.io/mcp?src=claudeCursor
Add to Cursor (deeplink) · web install link, or add to ~/.cursor/mcp.json:
{
"mcpServers": {
"worth": { "url": "https://worth.area21.io/mcp?src=cursor" }
}
}ChatGPT
Settings → Apps & Connectors → Advanced → enable Developer mode → Create → MCP server URL:
https://worth.area21.io/mcp?src=chatgptAuthentication: none.
VS Code
**Install in VS Code**, or add to .vscode/mcp.json:
{
"servers": {
"worth": { "type": "http", "url": "https://worth.area21.io/mcp?src=vscode" }
}
}Any other MCP client
https://worth.area21.io/mcp?src=github
Try asking
- "What's my Nintendo Switch OLED worth?"
- "Should I buy AirPods Pro 2 new or used?"
- "Where can I sell a Charizard Pokémon card for the most?"
- "Here's a photo of my grandma's lamp. Is it worth anything?"
- "Is $400 a good price for a used iPhone 14 Pro?"
Tools
| Tool | What it does for you |
|---|---|
price_item | What one item is worth from a photo or name: estimate, new and used ranges, confidence |
compare_prices | New vs. used vs. resale, so you know whether to buy used or sell |
where_to_buy_or_sell | Store and marketplace links to buy new, buy used, or sell |
All tools are read-only. Results render as an interactive price card (MCP Apps, ui://worth/price-card.html). Free daily lookups.
Free guides from Worth
- Thrifting price guides: what thrift finds are worth
- Reselling for beginners
- How to price yard sale items
- Buying used instead of new
Privacy & support
Website · Privacy · Terms · Support
Listed in the official MCP Registry as io.github.a21ai/worth. Made by Area21 Labs.
Frequently asked questions
What is Worth?
Find what anything is worth: resale value, used and new prices, and where to buy or sell it.
How do I install Worth?
It runs as a remote server. In Claude Code: claude mcp add --transport http worth 'https://worth.area21.io/mcp?src=mcp_registry'. For other clients, paste the JSON configuration from this page into their MCP settings.
Does Worth need an API key?
Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.
Is Worth open source?
Its code is public on GitHub, but the repository does not declare a standard license.
Who maintains Worth?
It is published by a21ai. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.