# CDC Social Vulnerability Index

> SVI scores and theme breakdowns by county and tract

- name: com.olyport/cdc-svi
- version: 1.1.0
- connection class: R0 (autonomous)
- trust: 72/100 flags: no-repository
- quality: 79/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.olyport%2Fcdc-svi
- tools: https://api.protogrid.dev/v1/servers/com.olyport%2Fcdc-svi/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "cdc-svi": {
      "type": "http",
      "url": "https://mcp.olyport.com/cdc-svi/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 45
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% -stale-202d -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 79/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_county_svi (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_tract_svi (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_most_vulnerable (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 823 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 823 tokens to load them all
- tool set hash: 0d83207c888b253df751e6cb70dd0572
- badge: [![protogrid quality](https://protogrid.dev/badge/com.olyport/cdc-svi.svg)](https://protogrid.dev/servers/com.olyport/cdc-svi)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://mcp.olyport.com/cdc-svi/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (4)

- `compare_svi`: Compare SVI data across multiple counties.

    Returns side-by-side SVI percentile rankings and key indicators for
    the specified counties. Useful for comparing vulnerability across
    service areas or peer counties.

    Args:
        fips_codes: Comma-separated 5-digit county FIPS codes (e.g. '53033,53053,53061').
        year: SVI data year (default 2022, currently only 2022 available).
    
- `get_county_svi`: Get CDC Social Vulnerability Index data for counties in a state.

    Returns overall SVI percentile ranking and all four theme breakdowns
    (socioeconomic status, household composition/disability, minority
    status/language, housing type/transportation) plus key indicator
    estimates for each county.

    SVI values range 0-1 (percentile ranking); higher = more vulnerable.

    Args:
        state: Two-letter US state abbreviation (e.g. 'WA', 'CA').
        county_fips: Optional 5-digit county FIPS code to get a single county.
        year: SVI data year (default 2022, currently only 2022 available).
    
- `get_most_vulnerable`: Get the most vulnerable counties in a state ranked by SVI score.

    Returns counties sorted by highest SVI percentile ranking for the
    specified theme. Useful for identifying priority areas for grants
    and community health interventions.

    Args:
        state: Two-letter US state abbreviation (e.g. 'WA', 'CA').
        theme: SVI theme to rank by. Options: 'overall', 'socioeconomic',
               'household' (composition/disability), 'minority' (status/language),
               'housing' (type/transportation). Default is 'overall'.
        limit: Number of counties to return (default 20, max 100).
    
- `get_tract_svi`: Get tract-level CDC Social Vulnerability Index data within a county.

    Returns overall SVI and all four theme percentile rankings for each
    census tract in the specified county. Useful for identifying
    sub-county areas of high vulnerability.

    Args:
        state: Two-letter US state abbreviation (e.g. 'WA', 'CA').
        county_fips: 5-digit county FIPS code (e.g. '53033' for King County, WA).
        year: SVI data year (default 2022, currently only 2022 available).
        limit: Maximum number of tracts to return (default 50, max 500).