MCP 服务器

Marketplace Search MCP

MCP server for searching marketplaces (TCGPlayer, Reverb, Thumbtack), verifying professional licenses (contractor, nurse), and looking up PSA card grading data. Returns real-time pricing, listings, and verification results.

README

Marketplace Search MCP Server

MCP server for AI agents to search marketplaces, verify professional licenses, and look up collectibles data — all from natural language.

Supported Data Sources

Tool	Source	Data
`search_tcgplayer`	TCGPlayer	Trading card prices (Magic, Pokémon, Yu-Gi-Oh!, Lorcana)
`search_reverb`	Reverb.com	Used & new music gear (guitars, amps, pedals, synths)
`search_thumbtack`	Thumbtack	Local service professionals (plumbers, electricians, etc.)
`verify_contractor_license`	State licensing boards	Contractor license verification (CA, TX, FL, NY)
`verify_nurse_license`	State nursing boards	Nurse license verification (FL, NY)
`psa_population_report`	PSA	Card grading population reports and cert lookups

Installation

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

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

Cursor / Windsurf / Other MCP Clients

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

Smithery

npx @smithery/cli install @lulzasaur9192/marketplace-search-mcp --client claude

Tools

search_tcgplayer

Search trading card prices from TCGPlayer — the largest trading card marketplace.

Parameter	Type	Required	Description
query	string	Yes	Card name or search term
limit	number	No	Results to return (1-50, default 20)

Example: search_tcgplayer({ query: "charizard", limit: 5 })

Returns: product name, set, rarity, market price, median price, lowest price, total listings, image URL, product URL.

search_reverb

Search music gear listings from Reverb.com — the largest marketplace for musical instruments.

Parameter	Type	Required	Description
query	string	Yes	Instrument or gear search term
limit	number	No	Results to return (1-50, default 20)

Example: search_reverb({ query: "fender stratocaster", limit: 10 })

Returns: title, make, model, year, price, condition, shop name, categories, listing URL.

search_thumbtack

Search local service professionals from Thumbtack.

Parameter	Type	Required	Description
query	string	Yes	Service category search term
location	string	No	City/state slug (e.g. "austin/tx")
limit	number	No	Results to return (1-20, default 20)

Example: search_thumbtack({ query: "plumbers", location: "austin/tx", limit: 5 })

Returns: name, rating, review count, price range, hire count, services, location, profile URL, badge, licensed status.

verify_contractor_license

Verify a contractor's license across US states. Queries official state licensing board databases.

Parameter	Type	Required	Description
state	string	Yes	State code: CA, TX, FL, or NY
licenseNumber	string	No	License number to look up
personName	string	No	Person name to search
businessName	string	No	Business name to search

Example: verify_contractor_license({ state: "CA", licenseNumber: "1234567" })

Returns: license status, expiration date, classifications, bond info, contact details.

verify_nurse_license

Verify a nurse's license across US states. Queries official state nursing board databases.

Parameter	Type	Required	Description
state	string	Yes	State code: FL or NY
licenseNumber	string	No	License number to look up
lastName	string	No	Nurse's last name
firstName	string	No	Nurse's first name
licenseType	string	No	License type (e.g. "RN", "LPN")

Example: verify_nurse_license({ state: "FL", licenseNumber: "RN1234567" })

Returns: license status, expiration, qualifications, enforcement actions.

psa_population_report

Look up PSA card certification details and population reports.

Parameter	Type	Required	Description
certNumber	string	No	PSA certification number
specID	string	No	PSA spec ID for direct pop lookup

Example: psa_population_report({ certNumber: "10000001" })

Returns: card info (year, brand, subject, grade) and complete grade breakdown from Auth through PSA 10.

Use Cases

Price comparison: Ask your AI to compare trading card prices across sets or find the cheapest listing for a specific card
Gear hunting: Have your AI search Reverb for specific guitars, amps, or pedals within a budget
Hire professionals: Find and compare local contractors, plumbers, or electricians with ratings and pricing
License verification: Verify contractor or nurse licenses before hiring — checks official state databases
Card grading data: Look up PSA population reports to assess card rarity and value