Environment variable CENSUS_API_KEY
No value of this variable is held in this registry. The registry knows only the name the source states.
Entries naming CENSUS_API_KEY as an ordinary environment variable
| Census (ACS by ZIP) | io.github.mcpwright/census-mcp |
|---|---|
| MCP server in namespace io.github | io.github.adriancisnerosspeed-hub/civic-library-mcp |
| MCP server in namespace io.github | io.github.cliwant/mcp-sam-gov |
| MCP server in namespace io.github | io.github.cyanheads/census-mcp-server |
| MCP server in namespace io.github | io.github.geowire/geowire |
Entries naming CENSUS_API_KEY as a secret required variable
No entry.
What the sources write about this name
| Census (ACS by ZIP) | Free Census API key (get one at https://api.census.gov/data/key_signup.html). Required for the one-time bulk download of the ACS dataset. |
|---|---|
| MCP server in namespace io.github | Free Census API key (https://api.census.gov/data/key_signup.html). Required only for the get_tract_demographics tool; all other tools work with no key. |
| MCP server in namespace io.github | Optional free key for Census business-patterns tools. |
| MCP server in namespace io.github | Census Bureau API key from api.census.gov/data/key_signup.html. Required for census_query_data and census_compare_geographies; variable search and geography resolution work without it. |
| MCP server in namespace io.github | Optional (free). Enables US Census demographics (population, median age, household income) for area analysis. |
Taken verbatim from the source, one line per entry. The text is a vendor's own statement and is neither checked nor shortened.
To the environment variable index
Version of the extraction rule: 1.1. The names are formed by splitting the stored raw declaration at the separator this registry set when reading it in. Counted across the 24,507 published entries.
tracevero · https://tracevero.com/variable/CENSUS_API_KEY