Census Bureau for AI agents

The Census Bureau API gives access to official U.S. population, economic, and geographic data, letting a team pull public statistics straight into an app. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.

Connect Census Bureau See the 81 actions ↓

AnalyticsAPI keyMCP + RESTcensus.gov

AUDIT LOG · CENSUS BUREAUPOLICY: acme-support

09:41:07 · claude · u_8f2read

census_bureau.list_datasets_xml

List Datasets XML✓ allowed · 212ms

09:41:08 · claude · u_8f2read

census_bureau.query_dec_dp

Query Decennial Census Demographic Profile✓ allowed · 164ms

09:41:09 · claude · u_8f2write

census_bureau.geocode_address

Geocode Address✓ approved · approved by user

EVERY CENSUS BUREAU CALL, ON THE RECORD

01 · USE CASES

What agents do in Census Bureau.

Pull population estimates for an area

Pull population estimates for a specific region to include in a market analysis.

Geocode an address

Geocode a street address into census geography, useful for matching a customer to a district.

Look up business pattern data

Look up county business pattern data before sizing a market for a new location.

02 · ACTIONS

81 Census Bureau actions, graded by risk.

Every Census Bureau action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.

read

Look things up. Allowed by default.

census_bureau.query_dec_dp
Query Decennial Census Demographic Profile
census_bureau.query_dec_pl
Query Decennial Census P.L. Redistricting Data
census_bureau.query_acs_spp
Query ACS Selected Population Profiles
census_bureau.query_dec_dhc
Query Decennial DHC
census_bureau.query_surname
Query Surname Data
census_bureau.query_acs_acsse
Query ACS Supplemental Estimates
census_bureau.query_acs_flows
Query ACS Migration Flows
census_bureau.get_dataset_tags
Get Dataset Tags
census_bureau.query_cps_survey
Query CPS Survey Data
census_bureau.get_dataset_sorts
Get Dataset Sorts
census_bureau.list_datasets_xml
List Datasets XML
census_bureau.query_acs_profile
Query ACS Data Profile
census_bureau.query_acs_subject
Query ACS Subject Tables
census_bureau.query_pep_housing
Query PEP Housing Estimates
census_bureau.get_dataset_groups
Get Dataset Groups
census_bureau.list_datasets_html
List Datasets HTML

+ 57 MORE

write

Create and change things. Allow, or ask the user first.

census_bureau.geocode_address
Geocode Address
census_bureau.geocode_coordinates
Geocode Coordinates
census_bureau.geocode_address_parts
Geocode Address Parts
census_bureau.geocode_geographies_batch
Batch Geocode Addresses with Geographies
census_bureau.geocode_address_geographies
Geocode Address for Census Geographies
census_bureau.geocode_location_address_pr
Geocode Puerto Rico Address
census_bureau.geocode_address_with_geography
Geocode Address with Geography
census_bureau.geocode_geographies_address_pr
Geocode Puerto Rico Address with Geography

destructive

Delete, cancel or archive. Ask first, or deny outright.

No destructive actions.

03 · HOW IT WORKS

Census Bureau in three steps.

01Your users connect Census BureauThey add their Census Bureau api key on Arc0 Connect, under your brand. It goes straight into the vault.
02You set the rulesReads run, and writes like “geocode Address” can wait for the user to approve.
03Any agent can actYour agent calls Census Bureau through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.

POLICY.TS

await arc0.policies.set('census_bureau', {
  read: 'allow',
  write: 'ask',        // geocode_address
  destructive: 'deny',  
})

# Claude Code: the same connection, one URL
$ claude mcp add --transport http arc0 \
    https://mcp.arc0.ai/u/u_8f2

04 · AUTH AND DATA

How Census Bureau connects.

Users add their Census Bureau api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

The same Census Bureau connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →

AUTH: API key
CREDENTIALS: Per-tenant encrypted vault
MODEL SEES: Results only, never credentials
AUDIT LOG: Every call, on every plan

05 · WORKS WITH

Use Census Bureau from any agent.

Claude

ChatGPT

Cursor

Codex

VS Code

OpenAI Agents SDK

Claude Agent SDK

Vercel AI SDK

Mastra

LangGraph

06 · RELATED

More analytics apps.

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Akta19 actions

Alpha Vantage56 actions

Amplitude54 actions

ALL ANALYTICS APPS →

07 · FAQ

Census Bureau and Arc0, answered.

Q01

Can I use Census Bureau with Claude, ChatGPT or Cursor?

Yes. Connect Census Bureau to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Census Bureau actions you allow.

Q02

How do users connect Census Bureau?

Users add their Census Bureau api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

Q03

Which Census Bureau actions can my agent take?

81 in total: 73 read, 8 write and 0 destructive, such as “geocode Address”. Your policies decide which of them each agent may call.

Q04

Can I make my agent read-only in Census Bureau?

Yes. Allow read actions and deny writes in the Census Bureau policy. Your agent can still look things up, and any write it attempts is blocked and logged.

Q05

Can my own backend call Census Bureau too?

Yes. The same Census Bureau connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.

Get started

Plug Census Bureau into your agent.

Your users connect Census Bureau once, under your brand. Your agent gets 81 actions behind your policies, with every call on the record.

Connect Census Bureau Browse all apps →

Free to build · MCP + REST · Audit log on every plan