MCP.Market

Worth MCP server

online · 96% uptime
by a21ai·io.github.a21ai/worth·v0.1.3
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Find what anything is worth: resale value, used and new prices, and where to buy or sell it.

B79/100grade B
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Safety scan
B79/100

full report

Adoption
Growing

0 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

Worth tools (3, 1 write)

write = sends, deletes, buys or posts
  • compare_pricesFree

    New, used, and resale prices for one named item. estimate_low and estimate_high carry a range already priced, or -1 when the title still needs a price.

  • price_itemFree

    Prices one item from a photo or a name. Returns what it is worth as a range, the new and used asking prices, resale, and a confidence.

  • where_to_buy_or_sellwrite actionFree

    Marketplace links to buy one named item new, buy it used, or sell it. Each link is a Worth tracking URL.

Public scan report

scanner v0.1.10 · 2026-10-25 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 2823ms17/20
  • Tool poisoning3 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 4 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 79/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Worth compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
79/100
higher than 58% of 48,255 servers
Tools
3
the typical server has 7
Tools that change things
33%
typical: 0%. Fewer write tools means less an agent can break
Uptime
96%
of our recent checks; the typical remote server answers 100%
Response time
508 ms
faster than 29% of 30,031 servers

What its tools let an agent do: 2 read · 1 change

Install Worth in Claude Code, Cursor or VS Code

claude mcp add --transport http worth https://worth.area21.io/mcp?src=mcp_registry
Add to Cursor

What the publisher says

From the Worth repository's README, as published. We do not edit it. Read it on GitHub

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.

<!-- Hero screenshot: placeholder until the price-card polish ships -->

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=claude

Cursor

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=chatgpt

Authentication: 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

  1. "What's my Nintendo Switch OLED worth?"
  2. "Should I buy AirPods Pro 2 new or used?"
  3. "Where can I sell a Charizard Pokémon card for the most?"
  4. "Here's a photo of my grandma's lamp. Is it worth anything?"
  5. "Is $400 a good price for a used iPhone 14 Pro?"

Tools

All tools are read-only. Results render as an interactive price card (MCP Apps, ui://worth/price-card.html). Free daily lookups.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Worth: common questions

Is Worth MCP server safe?
Mostly: it is graded B (79/100). Read the Worth safety report
How do I install Worth?
It runs remotely at worth.area21.io. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Worth need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Worth maintained?
The last commit was 14 days ago (2026-10-21). The latest release is v0.1.3.
Is Worth up?
96% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Worth compare with other MCP servers?
safety score 79/100 (higher than 58% of 48,255 servers); tools 3 (the typical server has 7); tools that change things 33% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.