Marketplace Search

io.github.lulzasaur9192Published by GitHub account lulzasaur9192v2.0.0Updated Oct 27, 2026

22 tools: search 15+ marketplaces, verify licenses, childcare costs, FCC, GSA auctions

VerifiedSTDIODesktop onlyLocation & LifestyleWeb Search & ScrapingBusiness & Commerce

Overview

AI-generated overview

Local MCP server with 22 tools for searching 15+ marketplaces, comparing prices, verifying licenses, and looking up cost and regulatory data.

What you can do
  • Search 13 marketplaces in one tool (TCGPlayer, Reverb, Grailed, Redfin, Craigslist, Poshmark and more)
  • Search specialized listings: IMDb titles, Houzz professionals, Thumbtack local services
  • Look up collectibles and property data: PSA population reports, NYC building violations, estate sales, self-storage facilities
  • Query government records: FCC ID certifications and GSA surplus auctions with lot details and stats
  • Estimate costs: childcare by ZIP, county or state, all-state comparisons, and home service estimates
  • Check AI agent skill safety ratings
When to use it
Useful when you want an assistant to research secondhand and niche marketplace listings, compare prices across platforms, or pull public records such as FCC certifications, NYC violations, GSA auctions and regional cost data without visiting each site.
Requirements
Runs locally via npx from the npm package, so Node.js is needed; add it to the MCP client config as a stdio server. No credentials are required, but an optional MARKETPLACE_API_KEY environment variable raises quotas after email registration.
Before you install
Search results come from third-party sites and may be incomplete or rate-limited. Registration for the optional API key sends an email address to an external backend, and higher limits are offered through a paid RapidAPI subscription. Treat cost, license and safety verdicts as informational rather than authoritative.

Installation

In SourceWeft

  1. Open Marketplace Search in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

@lulzasaur9192/marketplace-search-mcp

MCP server with 22 tools for marketplace search, price comparison, license verification, and data lookup across 15+ platforms.

Installation

bash
npx @lulzasaur9192/marketplace-search-mcp

Claude Desktop / Cursor

Add to your MCP config:

json
{  "mcpServers": {    "marketplace-search": {      "command": "npx",      "args": ["-y", "@lulzasaur9192/marketplace-search-mcp"]    }  }}

Tools (22)

Marketplace Search (13 marketplaces in 1 tool)

  • marketplace_search — Search TCGPlayer, Reverb, Grailed, Redfin, Bonanza, ThriftBooks, AbeBooks, Goodreads, OfferUp, Swappa, StubHub, Craigslist, Poshmark

Specialized Search

  • search_imdb — Movies/TV with chart browsing (Top 250, Most Popular)
  • search_houzz — Home design professionals by Houzz URL
  • search_thumbtack — Local service professionals with location filter

License Verification

  • verify_contractor_license — CA, TX, FL, NY contractor licenses
  • verify_nurse_license — FL, NY nurse licenses

Collectibles & Grading

  • psa_population_report — PSA card certification and population data

Property & Building

  • search_nyc_violations — NYC DOB building violation records
  • search_estate_sales — Estate sales by location
  • estate_sale_details — Full estate sale details
  • search_storage — Self-storage facilities
  • storage_facility_details — Storage pricing and amenities

Government & Regulatory

  • search_fcc — FCC ID certification search
  • fcc_details — Full FCC certification info
  • search_gsa_auctions — Government surplus auctions
  • gsa_auction_details — Auction lot details
  • gsa_auction_stats — Market statistics

Cost Data

  • childcare_cost — Childcare costs by ZIP/county/state
  • childcare_states — All-state childcare comparison
  • childcare_compare — Side-by-side location comparison
  • home_service_cost — Home service cost estimates

AI Safety

  • skillguard_verify — Verify AI agent skill safety (SAFE/CAUTION/DANGER)

Optional API Key

Register for higher quotas:

bash
curl -X POST https://rapidapi-backend-production.up.railway.app/mcp/register?utm_source=github-readme&utm_medium=readme&utm_campaign=marketplace-search \  -H "Content-Type: application/json" \  -d '{"email":"[email protected]"}'

Set MARKETPLACE_API_KEY env var for authenticated access.

Higher Rate Limits

For higher rate limits and dedicated support, subscribe on RapidAPI:

License

MIT

Source: README.md at commit bcff36a

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v2.0.0LatestSep 16, 2026

Score

40% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.