cdc_chronic.disease.trend
Retrieve multi-year trend data for a specific chronic disease indicator at the national or state level. Returns annual values with confidence intervals so you can track how a metric changes over time (e.g. declining smoking rates, rising obesity, improving diabetes control). Filter by question ID...
This record as markdown: /tools/io-github-whiteknightonhorse-apibase/cdc-chronic.disease.trend.md
What cdc_chronic.disease.trend does on Apibase
AI agents call cdc_chronic.disease.trend 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.
| Parameter | Type | Required | Description |
|---|---|---|---|
limit | integer | — | Maximum number of annual data points to return (1–50, default 20). Returns most recent years first. |
location | string | — | US state abbreviation (e.g. "CA", "TX", "FL") or "US" for national trend. Defaults to "US" for national-level data. |
question_id | string | — | Question ID to retrieve trend data for (e.g. "TOB04" for cigarette smoking, "DIA01" for diabetes, "CVD01" for high blood pressure, "CAN01" for cancer screening) |
value_type_id | string | — | Data value type to filter on. CRDPREV=Crude Prevalence (%, unadjusted), AGEADJPREV=Age-adjusted Prevalence (%, adjusted), NMBR=Number (absolute count), CRDRATE= |
stratification_id | string | — | Demographic subgroup for trend. OVR=Overall, SEXF=Female, SEXM=Male, BLK=Black non-Hispanic, HIS=Hispanic, etc. Omit for all subgroups. |
Parameters from the server's own tool schema.
Why cdc_chronic.disease.trend is rated Low
Queries public CDC disease trend data with no side effects or modifications.
From the tool's definition Retrieve multi-year trend data, Returns annual values, Track how a metric changes
Attacks that exploit this kind of access
The rule that runs cdc_chronic.disease.trend safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Apibase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cdc_chronic.disease.trend, this is the rule to start with:
cdc_chronic.disease.trend is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Apibase, apply this rule, and every cdc_chronic.disease.trend call is checked against it from then on.
Questions about cdc_chronic.disease.trend
Retrieve multi-year trend data for a specific chronic disease indicator at the national or state level. Returns annual values with confidence intervals so you can track how a metric changes over time (e.g. declining smoking rates, rising obesity, improving diabetes control). Filter by question ID, location (state abbreviation or "US" for national), demographic subgroup, and value type (crude prevalence, age-adjusted prevalence, rate per 100K, number). Data from ~2010 to 2023. Source: CDC CDI Socrata dataset hksd-2xuw. No auth — US Gov public domain. It is categorised as a Read tool in the Apibase MCP Server, which means it retrieves data without modifying state.
cdc_chronic.disease.trend accepts 5 parameters: limit, location, question_id, value_type_id, stratification_id. The full parameter table on this page comes from the server's own tool schema.
Register the Apibase MCP server in PolicyLayer and add a rule for cdc_chronic.disease.trend: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Apibase. Nothing to install.
cdc_chronic.disease.trend is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the cdc_chronic.disease.trend rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for cdc_chronic.disease.trend. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
cdc_chronic.disease.trend is provided by the Apibase MCP server (apibase-mcp-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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