Public Health · Data API

United States Leading Causes of Death

Yearly death counts and death rates for the top causes of death in each US state.

Aggregate annual death counts and age-adjusted death rates for the leading causes of death across all 50 states, DC and the nation, from 1999 onward. Health-tech startups, insurers, public-health researchers and AI health assistants use it for benchmarking and context.

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Source: CDC NCHS - Leading Causes of Death: United States · Public Domain (US Government Work) · Source: Centers for Disease Control and Prevention, National Center for Health Statistics

Endpoints

Every request is authenticated with your X-API-Key and counted against your plan.

GET /v1/data/united-states-leading-causes-death
GET /v1/data/united-states-leading-causes-death/search?q=...
GET /v1/data/united-states-leading-causes-death/{key}

Base path /v1/data/united-states-leading-causes-death · full reference in the interactive docs. Also exposed as an MCP tool for AI agents.

Fields

Field	Type	Description
year	int	Calendar year
cause_code_name	str	Detailed NCHS 113 cause list name with ICD-10 codes
cause_name	str	Plain cause of death name
state	str	US state, District of Columbia or United States
deaths	int	Number of deaths
age_adjusted_death_rate	float	Age-adjusted deaths per 100,000 population

What you get

Leading causes of death by state and year

Raw counts and age-adjusted rates

National and state-level totals

Filter by cause, state and year

Aggregate statistics only, no personal data

FAQ

What is an age-adjusted rate?: A rate standardised to a common age distribution so populations with different age profiles can be compared.
Does it contain personal data?: No, it contains only aggregate counts and rates.

Pricing

Simple, transparent pricing

Start free, upgrade when you need more. All plans include full API access.

Free

$0forever

Get started and explore the API

100 requests/day

100 API requests per day
All endpoints included
Community support

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Pro

$9/month

For production apps and AI agents

10,000 requests/day

10,000 API requests per day
All endpoints included
Priority support
Usage dashboard

Upgrade to Pro

Enterprise

$49/month

Unlimited access for high-volume use

Unlimited requests

Unlimited API requests
All endpoints included
Priority support
Usage dashboard
Dedicated support channel

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Getting Started

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Register

Create an account to get your API key. It's free — no credit card required.

curl -X POST https://api.aristocles.com.au/v1/auth/register \
  -H "Content-Type: application/json" \
  -d '{"email": "you@example.com", "name": "Your Name"}'

Make a request

Use your API key in the X-API-Key header to authenticate requests.

curl https://api.aristocles.com.au/v1/data/asx \
  -H "X-API-Key: your_api_key_here"

Upgrade

Need more requests? Upgrade to Pro or Enterprise — you'll be redirected to Stripe Checkout.

curl -X POST "https://api.aristocles.com.au/v1/billing/checkout?tier=pro" \
  -H "X-API-Key: your_api_key_here"

Check usage

Monitor your daily request count and remaining quota at any time.

curl https://api.aristocles.com.au/v1/usage \
  -H "X-API-Key: your_api_key_here"