How to connect
Same URL, five paste targets. Ready surface · Auth required. Not a safe-to-install badge. Handshake this URL
Paste into Settings → MCP or .cursor/mcp.json.
{
"mcpServers": {
"cyanheads-census-mcp-server": {
"url": "https://census-mcp-server--cyanheads.run.tools"
}
}
}
Paste into .vscode/mcp.json.
{
"mcpServers": {
"cyanheads-census-mcp-server": {
"url": "https://census-mcp-server--cyanheads.run.tools"
}
}
}
Settings → Connectors → Add → Custom → Web. Paste the URL. Enable in a new chat.
Claude → Settings → Connectors → Add → Custom → Web
Name: census-mcp-server
URL: https://census-mcp-server--cyanheads.run.tools
OAuth only if this server requires it.
Save, start a new chat, enable the connector.
Developer mode custom connector. ChatGPT cannot reach localhost.
Settings → Apps & Connectors → Advanced → Developer mode ON
Create custom connector
Name: census-mcp-server
MCP server URL: https://census-mcp-server--cyanheads.run.tools
Auth: none unless the server requires OAuth
New chat → + → Developer mode → enable the connector
Register the HTTPS URL, then claude mcp list.
claude mcp add --transport http cyanheads-census-mcp-server \
https://census-mcp-server--cyanheads.run.tools
Pass on session/new as mcpServers when the agent advertised HTTP MCP.
[
{
"type": "http",
"name": "cyanheads-census-mcp-server",
"url": "https://census-mcp-server--cyanheads.run.tools"
}
]
Paste into a README or docs site. The widget loads snippets from Influzer — still not a SAFE badge.
Same handshake clock as this listing (overlay / warm / seed; live tools/list only if that is missing). Indigo is live_ok, amber is auth_required, gray is unreachable. Not a SAFE badge. Stdio listings have no badge.
[](https://www.influzer.ai/mcp/probe?url=https%3A%2F%2Fcensus-mcp-server--cyanheads.run.tools)
<div data-influzer-install="cyanheads-census-mcp-server"></div>
<script async src="https://www.influzer.ai/embed/install.js"></script>
https://www.influzer.ai/embed/mcp/cyanheads-census-mcp-server.md
JSON: https://www.influzer.ai/api/v1/install/cyanheads-census-mcp-server
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Listing quality
Observable facts from our catalog and daily probe — not a safe-to-install badge.
- Surface
- Ready surface
- Auth gate
- Auth gate
- Tools source
- tools/list (live)
Observable catalog + probe facts — not a safe-to-install badge. How we verify.
Verification summary
Stored signals only. Not a safety score.
- Verification grade
- A (85)
- Last verified
- Status
- Auth required
- Response time
- 0 ms
- Auth
- Auth gate
- Transport
- http, HTTPS
- Tools indexed
- 7
- 30-day uptime
- 100% of 7 samples over 7 days
Probe history
- · auth_required · 0 ms
- · auth_required · 0 ms
- · auth_required · 0 ms
- · auth_required · 0 ms
- · auth_required · 0 ms
Tools
(7)-
census_list_datasetsBrowse available Census Bureau datasets with their supported vintage years. Use as the starting point when the right dataset is unknown — ACS5, ACS1, population estimates, and decennial census serve different use cases. Pass the dataset_id value to the dataset parameter in other census tools.
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census_list_geographiesList the geography levels available for a given Census dataset and year, along with the parent geographies each level requires. Use before querying to confirm that the target geography level exists — ACS1 omits many sub-state levels, and not all datasets support tracts or block groups. The geography_level values returned here are the valid inputs to the geography_level parameter in census_query_data and census_compare_geographies.
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census_search_variablesSearch Census variables by keyword across variable labels and concept groups. Returns variable codes with human-readable labels — use this to go from a concept like "median household income" to the variable code B19013_001E needed for data queries. Returns both estimate (E suffix) and margin-of-error (M suffix) codes so you can request both. When total_matches exceeds the limit, narrow the query to see more specific results.
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census_get_variableFetch full metadata for one or more Census variable codes — label, concept group, predicate type, universe, and margin-of-error sibling references. Use to confirm a variable code before building a query, or to look up what a known code means. Returns estimate_code and moe_code sibling references where applicable so you can request both without a separate search.
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census_resolve_geographyResolve a place name or street address to Census FIPS identifiers (state, county, tract codes). Converts names like "King County, WA" or "Seattle, WA" to the FIPS codes required by census_query_data and census_compare_geographies. Use before querying when you have a place name rather than raw FIPS codes — state_fips maps to parent_fips and fips_summary maps to geography_fips in downstream tools.
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census_query_dataQuery a Census dataset for one or more variables at a specific geography. Accepts FIPS codes for the target geography — use census_resolve_geography to convert place names to FIPS when needed. Labeled estimates and margin-of-error values are returned together. Suppression codes (geography too small, data not collected) are decoded into human-readable reasons rather than passed through as raw negative numbers. Pass geography_fips as "*" to return all geographies at the level within the parent.
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census_compare_geographiesCompare one or more variables across multiple geographies at the same level — all counties in a state, all states nationally, or a named set of specific geographies. Results are sorted and ranked. Covers queries like "rank states by poverty rate", "compare median income across WA counties", or "which census tracts in King County have the highest renter rate." Omit within to compare all geographies nationally at the level. Suppressed values are decoded to human-readable labels rather than passed
Tool source: tools/list (live) · last probed 2026-11-05