Census ACS Demographics
REMOTE · MCP.OLYPORT.COM · SCANNED SEP 24
Population, income, poverty, education, housing, and commuting from the US Census ACS
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 5 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability59
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 922 tokens (~184/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage71
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the Census ACS Demographics MCP server?
Census ACS Demographics is a hosted endpoint at https://mcp.olyport.com/census/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp.olyport.com
claude mcp add --transport http com-olyport-census 'https://mcp.olyport.com/census/mcp'
{
"mcpServers": {
"com-olyport-census": {
"url": "https://mcp.olyport.com/census/mcp"
}
}
} {
"servers": {
"com-olyport-census": {
"type": "http",
"url": "https://mcp.olyport.com/census/mcp"
}
}
} [mcp_servers.com-olyport-census] url = "https://mcp.olyport.com/census/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-olyport-census": {
"type": "remote",
"url": "https://mcp.olyport.com/census/mcp",
"enabled": true
}
}
} openclaw mcp add com-olyport-census --url 'https://mcp.olyport.com/census/mcp' --transport streamable-http
mcp_servers:
com-olyport-census:
url: "https://mcp.olyport.com/census/mcp" {
"McpServers": {
"com-olyport-census": {
"Transport": "http",
"Url": "https://mcp.olyport.com/census/mcp"
}
}
} assistant mcp add com-olyport-census -t streamable-http -u 'https://mcp.olyport.com/census/mcp'
{
"mcpServers": {
"com-olyport-census": {
"type": "http",
"url": "https://mcp.olyport.com/census/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 26 Aug 26 76
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 7 Aug 26 0
- The server no longer declares the “experimental” capability functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 0
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 24 Sept 2026 · Probed https://mcp.olyport.com/census/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mcp.olyport.com | CN=YE1,O=Let's Encrypt,C=US | 29 Jul 2026 | 27 Oct 2026 | ECDSA 256 | ECDSA-SHA384 | 6ab1c2dfb0fcb68c1046393bb51c5b1117b |
| SANs: mcp.olyport.com | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.olyport.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| olyport.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains; preload |
| content-security-policy | default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self'; connect-src 'self' |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.olyport.com/census/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.olyport.com/census/mcp | HTTPS enforced | 308 | https://mcp.olyport.com/census/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
get_commuting_data ~155
Get means of transportation to work data for counties. Returns worker counts and percentages for: drove alone, carpooled, public transit, walked, bicycle, taxi/motorcycle/other, and worked from home. Args: state: Two-letter state abbreviation (e.g. 'WA', 'CA') or 2-digit FIPS code. county_fips: Three-digit county FIPS code (e.g. '033' for King County). Omit to get all counties in the state. year: ACS 5-year estimate year (default 2022).
| Name | Type | Req | Description |
|---|---|---|---|
| county_fips | string | – | – |
| state | string | yes | – |
| year | integer | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
get_county_demographics ~191
Get demographic data for counties: population, median age, race, Hispanic origin, income, and poverty. Returns one record per county with total population, median age, racial breakdown (White, Black, American Indian, Asian, Pacific Islander, Other, Two+), Hispanic/Latino percentage, median household income, and poverty rate. Args: state: Two-letter state abbreviation (e.g. 'WA', 'CA') or 2-digit FIPS code. county_fips: Three-digit county FIPS code (e.g. '033' for King County). Omit to get all counties in the state. year: ACS 5-year estimate year (default 2022). Data covers year-4 through year.
| Name | Type | Req | Description |
|---|---|---|---|
| county_fips | string | – | – |
| state | string | yes | – |
| year | integer | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
get_county_economics ~159
Get economic data for counties: income, poverty, home values, rent, and health insurance. Returns median household income, poverty rate, median home value, median gross rent, and health insurance coverage rates (insured vs uninsured). Args: state: Two-letter state abbreviation (e.g. 'WA', 'CA') or 2-digit FIPS code. county_fips: Three-digit county FIPS code (e.g. '033' for King County). Omit to get all counties in the state. year: ACS 5-year estimate year (default 2022).
| Name | Type | Req | Description |
|---|---|---|---|
| county_fips | string | – | – |
| state | string | yes | – |
| year | integer | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
get_county_education ~157
Get educational attainment for counties (population 25+). Returns counts and percentages for: less than high school, high school diploma/GED, some college/associate degree, bachelor's degree, and graduate/professional degree. Args: state: Two-letter state abbreviation (e.g. 'WA', 'CA') or 2-digit FIPS code. county_fips: Three-digit county FIPS code (e.g. '033' for King County). Omit to get all counties in the state. year: ACS 5-year estimate year (default 2022).
| Name | Type | Req | Description |
|---|---|---|---|
| county_fips | string | – | – |
| state | string | yes | – |
| year | integer | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
get_tract_data ~260
Get tract-level ACS data for any variables within a county. This is a flexible tool for querying any ACS 5-year estimate variables at the census tract level. Automatically batches requests if more than 50 variables are requested. Common variable examples: - B01001_001E: Total population - B19013_001E: Median household income - B17001_002E: Population below poverty level - B25077_001E: Median home value - B02001_002E-008E: Race breakdown Args: state: Two-letter state abbreviation (e.g. 'WA') or 2-digit FIPS code. county_fips: Three-digit county FIPS code (e.g. '033' for King County, WA). variables: Comma-separated ACS variable codes (e.g. 'B01001_001E,B19013_001E'). NAME is always included automatically. year: ACS 5-year estimate year (default 2022).
| Name | Type | Req | Description |
|---|---|---|---|
| county_fips | string | yes | – |
| state | string | yes | – |
| variables | string | yes | – |
| year | integer | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| result | string | yes | – |
No examples provided.
What is the Census ACS Demographics MCP server?
Census ACS Demographics is an MCP server listed in the public MCP registry as com.olyport/census. Population, income, poverty, education, housing, and commuting from the US Census ACS. This page covers its hosted endpoint (https://mcp.olyport.com/census/mcp).
Is the Census ACS Demographics MCP server safe to use?
Census ACS Demographics scores 76 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Census ACS Demographics MCP server expose?
Census ACS Demographics exposes 5 tools: get_county_demographics, get_county_economics, get_county_education, get_tract_data, get_commuting_data. Their descriptions and schemas cost roughly 922 tokens of context every time the server is loaded.
Does the Census ACS Demographics MCP server require authentication?
No. We connected to Census ACS Demographics without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Census ACS Demographics MCP server still maintained?
Census ACS Demographics is still listed as active in the MCP registry. We last reached this channel on 24 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.