census-mcp-server
Rank #4,351io.github.cyanheads/census-mcp-server
Query U.S. Census Bureau data, variables, and geography via MCP.
What you can do with census-mcp-server
census-mcp-server is a Model Context Protocol (MCP) server published by cyanheads. It ranks #4,351 of 151,203 active servers on MCP Toplist, and its repository has 2 GitHub stars. census-mcp-server is listed across 3 registries — Official MCP, PulseMCP and Glama, with 23 tracked versions. It was first listed on May 25, 2026 and most recently updated on Oct 13, 2026.
Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.
What census-mcp-server can and cannot do
Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.
What you need before using census-mcp-server
The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.
MCP Toplist probed the public endpoint on Oct 22, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.
Declared by Glama, last synced Oct 23, 2026. Not independently verified by MCP Toplist.
- CENSUS_API_KEY · optional
- MCP_LOG_LEVEL · optional
- MCP_TRANSPORT_TYPE · optional
- MCP_HTTP_HOST · optional
- MCP_HTTP_PORT · optional
- MCP_HTTP_ENDPOINT_PATH · optional
- MCP_AUTH_MODE · optional
Hosted endpoint declared as public.
Connect census-mcp-server and confirm it works
claude mcp add --transport http census-mcp-server https://census.caseyjhand.com/mcpclaude mcp add census-mcp-server -e "CENSUS_API_KEY=<your CENSUS_API_KEY>" -e "MCP_LOG_LEVEL=<your MCP_LOG_LEVEL>" -- npx -y @cyanheads/census-mcp-serverReplace each placeholder with your own value before saving.
claude mcp add census-mcp-server -e "MCP_TRANSPORT_TYPE=<your MCP_TRANSPORT_TYPE>" -e "CENSUS_API_KEY=<your CENSUS_API_KEY>" -e "MCP_HTTP_HOST=<your MCP_HTTP_HOST>" -e "MCP_HTTP_PORT=<your MCP_HTTP_PORT>" -e "MCP_HTTP_ENDPOINT_PATH=<your MCP_HTTP_ENDPOINT_PATH>" -e "MCP_AUTH_MODE=<your MCP_AUTH_MODE>" -e "MCP_LOG_LEVEL=<your MCP_LOG_LEVEL>" -- npx -y @cyanheads/census-mcp-serverReplace each placeholder with your own value before saving.
[mcp_servers.census-mcp-server]
url = "https://census.caseyjhand.com/mcp"Add to ~/.codex/config.toml.
[mcp_servers.census-mcp-server]
command = "npx"
args = ["-y", "@cyanheads/census-mcp-server"]
[mcp_servers.census-mcp-server.env]
CENSUS_API_KEY = "<your CENSUS_API_KEY>"
MCP_LOG_LEVEL = "<your MCP_LOG_LEVEL>"Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.
[mcp_servers.census-mcp-server]
command = "npx"
args = ["-y", "@cyanheads/census-mcp-server"]
[mcp_servers.census-mcp-server.env]
MCP_TRANSPORT_TYPE = "<your MCP_TRANSPORT_TYPE>"
CENSUS_API_KEY = "<your CENSUS_API_KEY>"
MCP_HTTP_HOST = "<your MCP_HTTP_HOST>"
MCP_HTTP_PORT = "<your MCP_HTTP_PORT>"
MCP_HTTP_ENDPOINT_PATH = "<your MCP_HTTP_ENDPOINT_PATH>"
MCP_AUTH_MODE = "<your MCP_AUTH_MODE>"
MCP_LOG_LEVEL = "<your MCP_LOG_LEVEL>"Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.
https://census.caseyjhand.com/mcpSettings → Connectors → “Add custom connector”, then paste this URL.
{
"mcpServers": {
"census-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/census-mcp-server"
],
"env": {
"CENSUS_API_KEY": "<your CENSUS_API_KEY>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.
{
"mcpServers": {
"census-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/census-mcp-server"
],
"env": {
"MCP_TRANSPORT_TYPE": "<your MCP_TRANSPORT_TYPE>",
"CENSUS_API_KEY": "<your CENSUS_API_KEY>",
"MCP_HTTP_HOST": "<your MCP_HTTP_HOST>",
"MCP_HTTP_PORT": "<your MCP_HTTP_PORT>",
"MCP_HTTP_ENDPOINT_PATH": "<your MCP_HTTP_ENDPOINT_PATH>",
"MCP_AUTH_MODE": "<your MCP_AUTH_MODE>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.
{
"mcpServers": {
"census-mcp-server": {
"url": "https://census.caseyjhand.com/mcp"
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).
{
"mcpServers": {
"census-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/census-mcp-server"
],
"env": {
"CENSUS_API_KEY": "<your CENSUS_API_KEY>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.
{
"mcpServers": {
"census-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/census-mcp-server"
],
"env": {
"MCP_TRANSPORT_TYPE": "<your MCP_TRANSPORT_TYPE>",
"CENSUS_API_KEY": "<your CENSUS_API_KEY>",
"MCP_HTTP_HOST": "<your MCP_HTTP_HOST>",
"MCP_HTTP_PORT": "<your MCP_HTTP_PORT>",
"MCP_HTTP_ENDPOINT_PATH": "<your MCP_HTTP_ENDPOINT_PATH>",
"MCP_AUTH_MODE": "<your MCP_AUTH_MODE>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.
{
"servers": {
"census-mcp-server": {
"type": "http",
"url": "https://census.caseyjhand.com/mcp"
}
}
}Save as .vscode/mcp.json in your workspace.
{
"servers": {
"census-mcp-server": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@cyanheads/census-mcp-server"
],
"env": {
"CENSUS_API_KEY": "<your CENSUS_API_KEY>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.
{
"servers": {
"census-mcp-server": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@cyanheads/census-mcp-server"
],
"env": {
"MCP_TRANSPORT_TYPE": "<your MCP_TRANSPORT_TYPE>",
"CENSUS_API_KEY": "<your CENSUS_API_KEY>",
"MCP_HTTP_HOST": "<your MCP_HTTP_HOST>",
"MCP_HTTP_PORT": "<your MCP_HTTP_PORT>",
"MCP_HTTP_ENDPOINT_PATH": "<your MCP_HTTP_ENDPOINT_PATH>",
"MCP_AUTH_MODE": "<your MCP_AUTH_MODE>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"census-mcp-server": {
"serverUrl": "https://census.caseyjhand.com/mcp"
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
{
"mcpServers": {
"census-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/census-mcp-server"
],
"env": {
"CENSUS_API_KEY": "<your CENSUS_API_KEY>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"census-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/census-mcp-server"
],
"env": {
"MCP_TRANSPORT_TYPE": "<your MCP_TRANSPORT_TYPE>",
"CENSUS_API_KEY": "<your CENSUS_API_KEY>",
"MCP_HTTP_HOST": "<your MCP_HTTP_HOST>",
"MCP_HTTP_PORT": "<your MCP_HTTP_PORT>",
"MCP_HTTP_ENDPOINT_PATH": "<your MCP_HTTP_ENDPOINT_PATH>",
"MCP_AUTH_MODE": "<your MCP_AUTH_MODE>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"census-mcp-server": {
"url": "https://census.caseyjhand.com/mcp"
}
}
}{
"mcpServers": {
"census-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/census-mcp-server"
],
"env": {
"CENSUS_API_KEY": "<your CENSUS_API_KEY>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Replace each placeholder with your own value before saving.
{
"mcpServers": {
"census-mcp-server": {
"command": "npx",
"args": [
"-y",
"@cyanheads/census-mcp-server"
],
"env": {
"MCP_TRANSPORT_TYPE": "<your MCP_TRANSPORT_TYPE>",
"CENSUS_API_KEY": "<your CENSUS_API_KEY>",
"MCP_HTTP_HOST": "<your MCP_HTTP_HOST>",
"MCP_HTTP_PORT": "<your MCP_HTTP_PORT>",
"MCP_HTTP_ENDPOINT_PATH": "<your MCP_HTTP_ENDPOINT_PATH>",
"MCP_AUTH_MODE": "<your MCP_AUTH_MODE>",
"MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
}
}
}
}Replace each placeholder with your own value before saving.
After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.
When to choose another server
- GBIF
- MCP Ts Core#60
- obsidian-mcp-server#177
- Pubmed MCP Server#222
- Clinicaltrialsgov MCP Server#502
- Secedgar MCP Server#1,276
- @cyanheads/eur-lex-mcp-server#1,378
- Openalex MCP Server#1,437
- Pubchem MCP Server#1,622
- Git MCP Server#1,914
- ntfy-mcp-server#2,012
- toolkit-mcp-server#2,041
No task-specific alternatives are catalogued for census-mcp-serveryet; the list above is its publisher's other servers.
What changed, and when this was checked
- First listed
- May 25, 2026
- Latest version published
- Oct 13, 2026
- Version history
- 23 versions tracked (below)
- Requirements evidence
- MCP Toplist probed the public endpoint on Oct 22, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.
- Profile checked
- Not yet — purpose, capabilities and requirements above come from registry data only
- Ranking data as of
- Oct 23, 2026
- PulseMCP ↗listed since May 26, 2026 · still listed
- Official MCP ↗listed since Jul 24, 2026 · still listed
- Glama ↗listed since Jul 30, 2026 · still listed
Do you maintain census-mcp-server? to correct or enrich this profile.
Available versions (23)
| Version | Published |
|---|---|
| 0.6.2 | Oct 13, 2026 |
| 0.6.1 | Oct 8, 2026 |
| 0.6.0 | Sep 25, 2026 |
| 0.5.0 | Sep 25, 2026 |
| 0.4.0 | Sep 25, 2026 |
| 0.3.4 | Sep 19, 2026 |
| 0.3.3 | Aug 25, 2026 |
| 0.3.2 | Jul 31, 2026 |
| 0.3.1 | Jul 31, 2026 |
| 0.3.0 | Jul 31, 2026 |
| 0.2.0 | Jul 31, 2026 |
| 0.1.14 | Jul 31, 2026 |
| 0.1.13 | Jul 31, 2026 |
| 0.1.12 | Jul 31, 2026 |
| 0.1.11 | Jun 20, 2026 |
| 0.1.10 | Jun 12, 2026 |
| 0.1.9 | Jun 4, 2026 |
| 0.1.8 | Jun 2, 2026 |
| 0.1.7 | May 30, 2026 |
| 0.1.6 | May 29, 2026 |
| 0.1.5 | May 26, 2026 |
| 0.1.4 | May 25, 2026 |
| 0.1.3 | May 25, 2026 |
Ranks ahead of 146,852 of 151,203 servers on MCP Toplist.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/io.github.cyanheads%2Fcensus-mcp-server)<a href="https://mcptoplist.com/server/io.github.cyanheads%2Fcensus-mcp-server"><img src="https://mcptoplist.com/badge/io.github.cyanheads%2Fcensus-mcp-server.svg" alt="MCP Toplist: Top 5% of 151,203" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Frequently asked questions
- Who maintains census-mcp-server?
- census-mcp-server is maintained by cyanheads, which publishes 165 MCP servers (2813 total versions) tracked on MCP Toplist.
- Is census-mcp-server listed on the Official MCP Registry?
- Yes — census-mcp-server is listed on the Official MCP Registry, alongside PulseMCP and Glama.
- How many versions does census-mcp-server have?
- MCP Toplist tracks 23 versions of census-mcp-server, most recently published on Oct 13, 2026.
- Where can I find the source code for census-mcp-server?
- The source code for census-mcp-server is hosted at github.com/cyanheads/census-mcp-server.
Do you run this server?
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