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 Grounding Data for AI Agents Source →
The tool
Once your client is connected to the VerveContext server, this appears in its tool list as ZIPDemographicsGroundingDataforAIAgents. 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": "ZIPDemographicsGroundingDataforAIAgents",
"arguments": {
"zip": "90210"
}
}You do not name the tool yourself; the model picks it. Asking about 90210 in the terms this source covers is enough for it to reach for ZIPDemographicsGroundingDataforAIAgents on its own — naming it explicitly also works, and is the way to force the call.
Connecting
One server URL covers every source 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": {
"vervecontext": {
"url": "https://api.vervecontext.com/v1/mcp"
}
}
}https://api.vervecontext.com/v1/mcpPer-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.
| Argument | Type | Description |
|---|---|---|
zipRequired | string | 5-digit US ZIP code length 5–5 |
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.
{
"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.
| Field | Type | Example | Description |
|---|---|---|---|
zip | string | 90210 | ZIP Code Tabulation Area identifier |
name | string | ZCTA5 90210 | ZCTA descriptive name |
acsYear | number | 2024 | American Community Survey year used for data |
population | object | {…} | |
population.total | number | 19004 | Total population count in ZIP code |
population.malePremium | number | 9417 | Male population count |
population.femalePremium | number | 9587 | Female population count |
population.medianAgePremium | number | 51 | Median age of population in years |
income | object | {…} | |
income.medianHousehold | number | 187801 | Median household income in dollars |
income.perCapitaPremium | number | 147098 | Per capita income in dollars |
housing | object | {…} | |
housing.medianHomeValuePremium | number | 2000001 | Median home value in dollars |
housing.medianRentPremium | number | 3251 | Median rent price in dollars |
housing.totalUnitsPremium | number | 9531 | Total housing units in area |
housing.occupiedUnitsPremium | number | 8029 | Number of occupied housing units |
housing.vacantUnitsPremium | number | 1502 | Number of vacant housing units |
housing.ownerOccupiedPremium | number | 5679 | Count of owner-occupied housing units |
housing.renterOccupiedPremium | number | 2350 | Count of renter-occupied housing units |
housing.homeOwnershipRatePremium | number | 70.7 | Percentage of homes owner-occupied |
education | object | {…} | |
education.collegeEducatedPctPremium | number | 68.1 | Percentage with college degree or higher |
education.bachelorsPremium | number | 4837 | Count of people with bachelor's degree |
education.mastersPremium | number | 2389 | Count of people with master's degree |
education.professionalPremium | number | 1962 | Count of people with professional degree |
education.doctoratePremium | number | 929 | Count of people with doctorate degree |
employment | object | {…} | |
employment.laborForcePremium | number | 9017 | Total labor force population count |
employment.unemployedPremium | number | 468 | Number of unemployed persons |
employment.unemploymentRatePremium | number | 5.2 | Unemployment rate as percentage |
race | object | {…} | |
race.white | object | {…} | |
race.white.countPremium | number | 15147 | White population count |
race.white.percentPremium | number | 79.7 | White population percentage |
race.black | object | {…} | |
race.black.countPremium | number | 403 | Black or African American population count |
race.black.percentPremium | number | 2.1 | Black or African American population percentage |
race.asian | object | {…} | |
race.asian.countPremium | number | 1628 | Asian population count |
race.asian.percentPremium | number | 8.6 | Asian population percentage |
race.hispanic | object | {…} | |
race.hispanic.countPremium | number | 1138 | Hispanic or Latino population count |
race.hispanic.percentPremium | number | 6 | Hispanic or Latino population percentage |
formattedPremium | object | {…} | Human-readable formatted currency values |
formatted.medianHouseholdIncomePremium | string | $187,801 | |
formatted.perCapitaIncomePremium | string | $147,098 | |
formatted.medianHomeValuePremium | string | $2,000,001 | |
formatted.medianRentPremium | string | $3,251 |
Why ground on it
A model can produce something that looks like this answer from its training data, and be confidently out of date or simply wrong. This source returns the current value in a shape you can check, which is the difference between an answer you can cite and one you have to hedge.
Point an evaluation at name: it is the field most worth pinning a claim to, and it is either present and current or absent — never plausibly invented.
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.
| Status | What it means |
|---|---|
400 / 422 | The arguments did not validate. The message names the offending one. |
401 | The OAuth session is invalid or expired — reconnect the server. |
403 | Blocked by a key restriction or an IP allow-list. Never a bad identity. |
404 | This source is not part of VerveContext. Check the catalog. |
429 | Out of credits, or a brief rate limit. The message tells them apart. |
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 Grounding Data for AI Agents
Set up ZIP Demographics Grounding Data for AI Agents on VerveContext, or reach the same source a different way. Your VerveContext account and credits work on all of them — one key, one balance.
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