Connect U.S. Census Bureau to Gemini Enterprise
Query U.S. Census Bureau directly from Gemini Enterprise. Arlet links the two through one MCP connection and takes care of API keys.
This server connects your AI client to the US Census Bureau data API, which publishes the country's demographic and economic baseline statistics. The Census variable system is famously intricate (tables like B19013, variables like B19013_001E, geography codes like state:06); this server wraps it in a three-step flow that an AI can follow reliably.
Key features:
- search_tables: find statistical tables by keyword within a dataset - 'median household income' resolves to table B19013. Defaults to the American Community Survey 5-year estimates (acs/acs5), the dataset with the finest geographic detail.
- list_table_variables: list a table's variables with human-readable labels. By default only estimate variables are shown, hiding the margin-of-error and annotation columns that usually just add noise.
- get_data: fetch values for chosen variables and a geography in the Census 'level:codes' form (us:1, state:06, county:* within a state, place:*, ...). The raw array-of-arrays response is converted to named records, and geography names are always included.
Other datasets and years are reachable through the dataset/vintage parameters (acs/acs1, dec/pl decennial redistricting, cbp County Business Patterns, ...).
Arlet obtains and manages the API key, so there is nothing for you to sign up for or configure - just switch the server on. (The key's rate limit is shared across Arlet users.)
How to connect U.S. Census Bureau to Gemini Enterprise
- 1
In the Arlet dashboard, open Data tools, find U.S. Census Bureau and switch it on. No API key setup is needed.
- 2
Sign in to Gemini Enterprise with your organization Google account and open the gear icon at the bottom left → Connectors → Add MCP Server.
- 3
In the MCP info tab, enter https://mcp.arlet.dev/mcp/ as the Server URL and "Arlet" as the Name. In the Auth tab, enter the OAuth settings from the Arlet docs (Authorization URL / Token URL / Client ID / Client Secret / Scopes) and click Add.
- 4
In the connector list on the chat screen, click Connect on Arlet, sign in with Google and authorize. Arlet can then be enabled with the toggle.
Adding custom connectors (MCP) requires a Gemini Enterprise subscription and is not available in the consumer Gemini app. See the docs for the values to enter in the Auth tab.