childcare_compare
Compare childcare costs side-by-side across multiple ZIP codes or locations. Compare up to 10 locations at once.
LABSCO SUMMARY
This is a collection of source-specific readers held together by a single install rather than by a single API, and its worth depends entirely on whether your work touches these particular sources.
Taken individually the reads are specific in a way general search is not: psa_population_report returns the grade breakdown from Auth through PSA 10, search_nyc_violations pulls ECB penalty amounts by BIN, and verify_contractor_license answers from state licensing boards rather than from a directory. The boundaries are worth reading before relying on any of it — verify_contractor_license reaches CA, TX, FL and NY, verify_nurse_license reaches FL and NY, and search_houzz will not search on its own since it consumes a URL you construct. skillguard_verify sits in the same install without sharing its subject, classifying agent skills rather than searching anything.
What it is
A search server spanning consumer marketplaces, US licence and compliance registries, and public cost datasets, with a dedicated tool per source.
What you get
- Resale search across 13 named marketplaces: marketplace_search covers tcgplayer, reverb, grailed, redfin, bonanza, thriftbooks, abebooks, goodreads, offerup, swappa, stubhub, craigslist and poshmark, narrowed by query, marketplace, location, minPrice, maxPrice, sortBy and limit, returning listings with prices, conditions, seller info and URLs.
- Licence verification against official state boards: verify_contractor_license searches CA, TX, FL and NY by licence number, person name or business name and returns status, expiration, classifications and contact info, and verify_nurse_license searches FL and NY and returns qualifications and enforcement actions.
- Regulatory and municipal records: search_nyc_violations queries NYC Department of Buildings records by address, BIN or block and lot across DOB, Safety and ECB violations with penalty amounts and an aggregate summary mode, while search_fcc and fcc_details return FCC ID certifications with equipment class, grant dates, test reports and compliance documents.
- Cost data with a comparison path built in: childcare_cost reads the DOL National Database of Childcare Prices by ZIP, county or state, childcare_states returns averages across US states, childcare_compare puts up to 10 locations side by side, and home_service_cost returns min, max, average and median pricing for a service in an area.
- Local services and physical inventory: search_thumbtack returns service professionals with ratings, reviews, pricing and hire counts; search_houzz turns a Houzz search URL into pro profiles with projects and contact info; search_estate_sales and estate_sale_details cover EstateSales.net with dates, addresses, items and photos; search_storage and storage_facility_details cover SelfStorage.com with unit sizes, prices, amenities and hours.
- Government surplus auctions end to end: search_gsa_auctions filters GSA lots by query, agency, state, status and bid range, gsa_auction_details returns bid info, inspection dates and sale terms, and gsa_auction_stats aggregates by state, agency, status and total bid amounts.
- Two lookups outside the marketplace theme: psa_population_report returns a graded card's certification details with the full population breakdown from Auth through PSA 10, and search_imdb searches titles or browses the Top 250 Movies, Top 250 TV, Most Popular Movies and Most Popular TV charts.
- skillguard_verify classifies an agent skill or tool as SAFE, CAUTION or DANGER from its permissions, commands and description.
Requirements
No credentials are configured. search_houzz is the call that needs something prepared beforehand: a Houzz search URL, built by browsing houzz.com/professionals.
Setup effort
One command — npx @lulzasaur9192/marketplace-search-mcp
USE CASES
01
Pricing something before you list or buy it
Search the resale marketplaces together, and for graded collectables check the population report — so the price sits next to how many of them exist.
02
Checking that a person is licensed to do the work
Verify a contractor or nurse against the state registry itself rather than the credential on their profile.
03
Costing a decision with public data
Compare childcare costs across states, get a home-service estimate, or price storage in an area — with the figures coming from the datasets rather than an average someone quoted.
04
Reading the public record on an address or a licence
Pull NYC violations on a building, look up an FCC filing, or check what the federal surplus auctions have moved recently.
22 tools
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
childcare_cost
Look up childcare costs by ZIP code, county, or state. Uses DOL National Database of Childcare Prices (48K records). Returns weekly/annual prices for center-based and family childcare by age group.
childcare_states
Get childcare cost averages for all US states. Compare center-based and family childcare pricing across the country by age group.
estate_sale_details
Get full details of a specific estate sale including photos, items, dates, directions, and sale company info.
fcc_details
Get full FCC certification details for a specific FCC ID. Returns equipment info, test reports, grant conditions, and compliance documents.
gsa_auction_details
Get full details of a specific GSA surplus auction lot including description, bid info, location, inspection dates, and sale terms.
gsa_auction_stats
Get aggregated statistics for GSA surplus auctions — breakdown by state, agency, status, total bid amounts, and averages.
home_service_cost
Get cost estimates for home services (plumbing, electrical, cleaning, etc.). Returns min/max/average/median pricing and top-rated professionals in the area. Powered by Thumbtack data.
marketplace_search
Search across 13 online marketplaces. Supported marketplaces: tcgplayer, reverb, grailed, redfin, bonanza, thriftbooks, abebooks, goodreads, offerup, swappa, stubhub, craigslist, poshmark. Returns listings with prices, conditions, seller info, and URLs. Each marketplace specializes in different categories: tcgplayer (trading cards), reverb (music gear), grailed (designer fashion), redfin (real estate), bonanza (general), thriftbooks/abebooks/goodreads (books), offerup/craigslist (local classifieds), swappa (electronics), stubhub (event tickets), poshmark (fashion resale).
psa_population_report
Look up PSA card certification details and full population report. Returns card info (year, brand, subject, grade) and complete grade breakdown from Auth through PSA 10, showing how many cards exist at each grade level.
search_estate_sales
Search for estate sales by ZIP code or city/state. Find upcoming and active estate sales with dates, addresses, descriptions, and photos from EstateSales.net.
search_fcc
Search FCC ID certifications for electronic devices. Look up by FCC ID, grantee code, or applicant name. Returns certification details including equipment class, grant dates, and test reports.
search_gsa_auctions
Search US government surplus auctions from GSA (General Services Administration). Find vehicles, electronics, equipment, and more at below-market prices.
search_houzz
Search Houzz for home design professionals, contractors, and interior designers. Takes a Houzz search URL (browse houzz.com/professionals to build one). Returns pro profiles with ratings, reviews, projects, and contact info.
search_imdb
Search IMDb for movies and TV shows. Can search by title or browse curated charts (Top 250 Movies, Top 250 TV, Most Popular Movies, Most Popular TV). Returns ratings, year, cast, and IMDb links.
search_nyc_violations
Search NYC Department of Buildings violation records by address, BIN, or block+lot. Covers DOB Violations, Safety Violations, and ECB Violations (with penalty amounts). Use summary=true for aggregate stats.
search_storage
Search self-storage facilities by city/state or ZIP code. Find storage units with pricing, sizes, and availability from SelfStorage.com.
search_thumbtack
Search local service professionals from Thumbtack. Find plumbers, electricians, cleaners, and 1000+ other service categories. Returns ratings, reviews, pricing, and hire counts.
skillguard_verify
Verify the safety of an AI agent skill/tool before execution. Classifies as SAFE, CAUTION, or DANGER based on permissions, commands, and description analysis. Use this to audit MCP tools, OpenAI functions, or any agent capability.
storage_facility_details
Get full details for a specific self-storage facility including unit sizes, prices, amenities, hours, and reviews.
verify_contractor_license
Verify a contractor's license across US states (CA, TX, FL, NY). Search by license number, person name, or business name. Returns license status, expiration, classifications, and contact info from official state licensing boards.
verify_nurse_license
Verify a nurse's license across US states (FL, NY). Search by license number or name. Returns license status, expiration, qualifications, and enforcement actions from official nursing boards.
BEFORE YOU INSTALL
What to know first
Tools you get
22 tools when we connected. marketplace_search alone covers thirteen marketplaces. Several tools cover only named US states or cities, such as CA, TX, FL and NY contractor licences and NYC building violations.
Requires
npx on PATH
Where it runs
Both documented clients run the server on your machine.
CONTEXT COST
Moderate Standing cost
Rated by the size of the 22 tool definitions that ride along on every turn, not by how many there are
INSTALLATION
Connect your client
Server setup
TERMINAL
npx @lulzasaur9192/marketplace-search-mcpMCP Clients
Claude Desktop, Cursor
JSON
{
"mcpServers": {
"marketplace-search": {
"command": "npx",
"args": [
"-y",
"@lulzasaur9192/marketplace-search-mcp"
]
}
}
}
