ZIP Demographics Skill

Overview

ZIP Demographics uses 5-year American Community Survey (ACS) estimates from the US Census Bureau, providing reliable demographic data for all 33,000+ ZIP Code Tabulation Areas (ZCTAs) in the United States.

Live Test ZIP Demographics Skill Skill →

The tool

Once your client is connected to the VerveKit server, this appears in its tool list as ZIPDemographicsSkill. It is read-only and open-world — it fetches and never mutates anything on your side — so most clients call it without asking you to confirm.

{
  "name": "ZIPDemographicsSkill",
  "arguments": {
    "zip": "90210"
  }
}

You do not name the tool yourself; the model picks it. Asking about 90210 in the terms this skill covers is enough for it to reach for ZIPDemographicsSkill on its own — naming it explicitly also works, and is the way to force the call.

Connecting

One server URL covers every skill in the catalog, including this one. Authorization is OAuth: the client opens a browser once, and there is no key to paste into a config file.

{
  "mcpServers": {
    "vervekit": {
      "url": "https://api.vervekit.com/v1/mcp"
    }
  }
}

https://api.vervekit.com/v1/mcp

Per-client setup — Claude, Cursor, VS Code, ChatGPT — is on the MCP setup page.

Arguments

These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made. Premium arguments are accepted on every plan but only take effect on plans that include them.

What the model gets back

The result carries a structuredContent object matching the tool's declared outputSchema, so a client reads fields without parsing prose. status is "ok" and error is null on success; a null field means the value was not available for that input, not that the call failed.

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{
  "status": "ok",
  "error": null,
  "data": {
    "zip": "90210",
    "name": "ZCTA5 90210",
    "acsYear": 2024,
    "population": {
      "total": 19004,
      "male": 9417,
      "female": 9587,
      "medianAge": 51
    },
    "income": {
      "medianHousehold": 187801,
      "perCapita": 147098
    },
    "housing": {
      "medianHomeValue": 2000001,
      "medianRent": 3251,
      "totalUnits": 9531,
      "occupiedUnits": 8029,
      "vacantUnits": 1502,
      "ownerOccupied": 5679,
      "renterOccupied": 2350,
      "homeOwnershipRate": 70.7
    },
    "education": {
      "collegeEducatedPct": 68.1,
      "bachelors": 4837,
      "masters": 2389,
      "professional": 1962,
      "doctorate": 929
    },
    "employment": {
      "laborForce": 9017,
      "unemployed": 468,
      "unemploymentRate": 5.2
    },
    "race": {
      "white": {
        "count": 15147,
        "percent": 79.7
      },
      "black": {
        "count": 403,
        "percent": 2.1
      },
      "asian": {
        "count": 1628,
        "percent": 8.6
      },
      "hispanic": {
        "count": 1138,
        "percent": 6
      }
    },
    "formatted": {
      "medianHouseholdIncome": "$187,801",
      "perCapitaIncome": "$147,098",
      "medianHomeValue": "$2,000,001",
      "medianRent": "$3,251"
    }
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Failure modes

Errors come back as tool errors carrying a sentence the model can act on, not a bare status code. Error handling covers the full list.

A call costs 10 credits each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.

Use cases

Market Research

Analyze demographics for market segmentation and targeting

Real Estate

Evaluate neighborhoods for real estate investment and valuation

Site Selection

Choose business locations based on demographic profiles

Ad Targeting

Build demographic profiles for advertising and personalization

Other ways to use ZIP Demographics Skill

Set up ZIP Demographics Skill on VerveKit, or reach the same source a different way. Your VerveKit account and credits work on all of them — one key, one balance.

Related

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