leadquasar

Counts and firmographics for 7.5M+ verified US B2B businesses, by industry, state and city.

Should I use this

Quality & Safety

A
Description quality
93%
Schema completeness
70%
Naming quality
100%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~882Tokens (tool definitions)
~2.3 KBTypical response size
Moderate attention impact (0.69% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "leadquasar": {
      "url": "https://leadquasar.com/api/mcp"
    }
  }
}

Remote endpoints

https://leadquasar.com/api/mcpstreamable-http

What it can do

Tool inventory

Tools (3)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢count_businesses(industry, country, state, city, no_website)

Count verified B2B businesses in the LeadQuasar database matching an industry, country, US state and/or city, with how many have an email address and a phone number. Use this to answer questions like 'how many managed service providers are there in Texas', 'how many dentists in Chicago have a business email' or 'how many movers are there in London' (country GB). Returns real counts from 7.5 million live records, most of them US.

Input Schema

{
  "type": "object",
  "properties": {
    "industry": {
      "type": "string",
      "description": "Industry or business type in plain words, e.g. 'managed service provider', 'dentist', 'HVAC contractor', 'plumbers'. Everyday wording is resolved to the stored categories, so 'HVAC contractor' finds HVAC and 'plumbers' covers both Plumbers and Plumbing. The response reports which category it matched."
    },
    "country": {
      "type": "string",
      "description": "Country, as an ISO code (\"US\", \"GB\", \"CA\") or a name (\"United Kingdom\"). Omit to count every country. Coverage outside the US is much smaller. Countries with data: United States (US), United Kingdom (GB), Canada (CA), United Arab Emirates (AE), Australia (AU), India (IN)."
    },
    "state": {
      "type": "string",
      "description": "US state, either full name (\"Texas\") or two-letter code (\"TX\"). US only."
    },
    "city": {
      "type": "string",
      "description": "City name, e.g. \"Chicago\", or \"London\" with country GB."
    },
    "no_website": {
      "type": "boolean",
      "description": "true = only businesses whose Google Maps listing shows no website of their own (read from the listing; a Facebook-only listing counts as none). For questions like 'restaurants in Dubai without a website' or 'plumbers in Texas with no website'."
    }
  }
}
🟢search_businesses(industry, country, state, city, no_website, ...)

Return a sample of matching businesses with industry, location and data-quality signals. Contact details (name, company, email, phone, address) are never returned by this tool — it shows what exists and how reachable it is, not who to call.

Input Schema

{
  "type": "object",
  "properties": {
    "industry": {
      "type": "string",
      "description": "Industry or business type in plain words. Everyday wording is resolved to the stored categories, and `matchedIndustry` in the response says which one."
    },
    "country": {
      "type": "string",
      "description": "Country, as an ISO code (\"US\", \"GB\", \"CA\") or a name (\"United Kingdom\"). Omit to count every country. Coverage outside the US is much smaller. Countries with data: United States (US), United Kingdom (GB), Canada (CA), United Arab Emirates (AE), Australia (AU), India (IN)."
    },
    "state": {
      "type": "string",
      "description": "US state, either full name (\"Texas\") or two-letter code (\"TX\"). US only."
    },
    "city": {
      "type": "string",
      "description": "City name, e.g. \"Chicago\", or \"London\" with country GB."
    },
    "no_website": {
      "type": "boolean",
      "description": "true = only businesses whose Google Maps listing shows no website of their own (read from the listing; a Facebook-only listing counts as none). For questions like 'restaurants in Dubai without a website' or 'plumbers in Texas with no website'."
    },
    "limit": {
      "type": "number",
      "description": "How many rows to return, 1-25. Defaults to 10."
    }
  }
}
🟢list_industries

List the industries LeadQuasar covers and how many verified businesses each holds. Use this first when unsure what industry wording will match.

Input Schema

{
  "type": "object",
  "properties": {}
}

Community

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Evidence

Recent observations

verifiedversion not recorded3 tools
verifiedversion not recorded3 tools