Query U.S
Query U.S. demographic, economic, education, labor, housing, and population statistics by geography. Returns normalized Census ACS estimates with margins of error, comparisons, trends, methodology, and source metadata as structured JSON. Not endorsed by the Census Bureau.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
1490 msmedian answer time
$0.1listed price per call
$0.1price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://agent-vending-production.up.railway.app/v1/us-demographics
| Category | Everything else |
|---|---|
| Provider host | agent-vending-production.up.railway.app |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.1 | 1490 ms |
Example input (from the provider)
{
"body": {
"geography": {
"name": "California",
"type": "state"
},
"metrics": [
"total_population",
"median_age",
"median_household_income"
],
"mode": "snapshot",
"release": 2023
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": true,
"properties": {
"allow_overlapping": {
"type": "boolean"
},
"geographies": {
"description": "Exactly two geographies for compare mode.",
"items": {
"type": "object"
},
"type": "array"
},
"geography": {
"description": "Target geography for snapshot/trend (type + name; state/county as needed).",
"type": "object"
},
"metrics": {
"description": "Friendly metric ids (e.g. total_population, poverty_rate).",
"items": {
"type": "string"
},
"type": "array"
},
"mode": {
"description": "Query mode.",
"enum": [
"snapshot",
"compare",
"trend",
"catalog"
],
"type": "string"
},
"observations": {
"type": "integer"
},
"release": {
"description": "ACS5 release year (e.g. 2023).",
"type": "integer"
},
"years": {
"items": {
"type": "integer"
},
"type": "array"
}
},
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"comparisons": {
"items": {
"type": "object"
},
"type": "array"
},
"experiment": {
"type": "string"
},
"geography": {
"type": "object"
},
"metrics": {
"items": {
"type": "object"
},
"type": "array"
},
"mode": {
"type": "string"
},
"notice": {
"type": "string"
},
"ok": {
"type": "boolean"
},
"price_usd": {
"type": "number"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}