# cdc.health.query

Query a specific CDC dataset using SoQL filters — filter by state, year, age group, condition. Returns structured rows with column names. Supports WHERE, SELECT, ORDER, GROUP BY. Use cdc.datasets to find dataset IDs first (US Gov, Socrata SODA API)

Agent View of the PolicyLayer registry record for `cdc.health.query`. HTML page: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/cdc.health.query

## Facts

- Tool: `cdc.health.query`
- Server: Apibase (`apibase-mcp-client`) — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md
- Install: `npx -y apibase-mcp-client`
- Homepage: https://github.com/whiteknightonhorse/APIbase
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 6 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `group` | string | no | Group by columns for aggregation (e.g. "state" with select "state, SUM(deaths)") |
| `limit` | integer | no | Max rows to return (1-1000, default 100) |
| `order` | string | no | Sort order (e.g. "year DESC", "deaths DESC"). Default: dataset default order. |
| `where` | string | no | SoQL WHERE clause filter (e.g. "state='CA'", "year > 2020", "age_group='65+'") |
| `select` | string | no | Columns to return, comma-separated (e.g. "state, year, deaths"). Default: all columns. |
| `dataset_id` | string | yes | CDC dataset ID in xxxx-xxxx format (e.g. "9bhg-hcku" for COVID deaths). Use cdc.datasets to find IDs. |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "cdc.health.query",
    "arguments": {
      "dataset_id": "<dataset_id>"
    }
  }
}
```

## Why cdc.health.query is rated Low

Tool retrieves and filters public health data without modification or execution permissions.

From the tool's own definition: "Query a specific CDC dataset using SoQL filters. Returns structured rows."

## Use case

AI agents call cdc.health.query to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Apibase:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "cdc.health.query": {}
  }
}
```

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## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-whiteknightonhorse-apibase · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-whiteknightonhorse-apibase