Resolve any US latitude/longitude to its 15-digit Census block FIPS, county, and
Resolve any US latitude/longitude to its 15-digit Census block FIPS, county, and state. Lightweight and fast, the FCC block API is the standard tool for assigning points to Census geographies. Keyless and free.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
923 msmedian answer time
$0.06listed price per call
$0.06price 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://proxy.suverse.io/v1/data/suverse-demographics-fcc-block
| Category | Everything else |
|---|---|
| Provider host | proxy.suverse.io |
| Networks | cosmos:noble-1, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact, exact_cosmos_authz |
| Self-reported calls, 30 days | 1 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 | $0.06 | 923 ms |
Example input (from the provider)
{
"body": {
"latitude": "38.8977",
"longitude": "-77.0365"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {}
},
"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": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}