# US Census Bureau

**Canonical:** https://apis.io/providers/us-census-bureau/  
**Website:** https://www.census.gov  
**APIs profiled:** 19

The U.S. Census Bureau is the federal statistical agency responsible for producing data about the American people and economy. Established in 1902 and part of the U.S. Department of Commerce, the Bureau conducts the constitutionally mandated Decennial Census every ten years and dozens of ongoing surveys including the American Community Survey, Economic Census, Population Estimates, Current Population Survey, and Survey of Income and Program Participation. The Census Bureau exposes its statistics through the Census Data API (over 1,700 datasets), the Microdata API for PUMS tabulation, the TIGERweb geospatial REST services, and the Geocoding Services API — all free, requiring only a free API key for the data endpoints and released into the public domain under CC0.

## Kin Score — 53.2 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 53.2).

| Facet | Score |
|---|---|
| Discoverability | 61.1 |
| Contract Quality | 62.2 |
| Governance | 45.5 |
| Contract Governance | 45.5 |
| Operational Transparency | 50.0 |
| Developer Ergonomics | 45.2 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

Regulatory layer — **Government & Public Sector**: 46.3 (matched via tags).

## Agent readiness — 32.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (19)

- **US Census Bureau 2010 API** — The 2010 API from US Census Bureau — 1 operation(s) for 2010.
- **US Census Bureau 2020 API** — The 2020 API from US Census Bureau — 1 operation(s) for 2020.
- **US Census Bureau ACS API** — American Community Survey datasets (1-Year, Supplemental, 5-Year)
- **US Census Bureau ACS PUMS API** — ACS Public Use Microdata Sample (person and household)
- **US Census Bureau Batch API** — Bulk geocoding (up to 10,000 records)
- **US Census Bureau Catalog API** — Service directory
- **US Census Bureau CPS API** — Current Population Survey basic monthly and supplements
- **US Census Bureau Current API** — Current vintage TIGERweb services
- **US Census Bureau Decennial API** — Decennial Census of Population and Housing
- **US Census Bureau Discovery API** — Dataset discovery via the DCAT-compliant catalog
- **US Census Bureau Economic API** — Economic Census, ABS, CBP, NES
- **US Census Bureau Geographies API** — Address to coordinates plus Census geographies
- **US Census Bureau Locations API** — Address to coordinates
- **US Census Bureau Metadata API** — Per-dataset variables, groups, geographies, and examples
- **US Census Bureau PEP API** — Population Estimates Program
- **US Census Bureau Popclock API** — The Popclock API from US Census Bureau — 2 operation(s) for popclock.
- **US Census Bureau Pulse API** — Household Pulse Survey near-real-time experimental data
- **US Census Bureau SIPP API** — Survey of Income and Program Participation panels
- **US Census Bureau Timeseries API** — The Timeseries API from US Census Bureau — 7 operation(s) for timeseries.

## Agentic access (1)

- **Us Census Bureau Agentic Access** — 47 operations · 2 acting

## Security (2)

- **Us Census Bureau Authentication** — apiKey · 1 scheme
- **Us Census Bureau Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Government, Federal, Demographics, Statistics, Economics, Geospatial, Open Data, Public Sector

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/us-census-bureau/). Scores are computed from the provider's own public artifacts under a published rubric.