Disease.sh — Free COVID-19 and Disease Tracking API (No Key)

TL;DR

Disease.sh (formerly NovelCOVID) is an open-source API providing real-time disease outbreak data, primarily known for comprehensive COVID-19 statistics across all countries and US states. Beyond COVID-19, it also tracks monkeypox and other outbreaks. Data includes confirmed cases, deaths, recoveries, active cases, vaccination numbers, testing rates, and historical trends. All data is aggregated from official sources like WHO, CDC, ECDC, and Johns Hopkins University.

Quick start: https://disease.sh/v3/covid-19/all

No API key needed — just make a request!

How to Use This API

1. Global COVID-19 Totals

https://disease.sh/v3/covid-19/all

2. Statistics by Country

https://disease.sh/v3/covid-19/countries/Japan

3. US State Data

https://disease.sh/v3/covid-19/states/California

4. JavaScript — Global Stats Dashboard

fetch('https://disease.sh/v3/covid-19/all')
  .then(r => r.json())
  .then(d => {
    console.log('Cases:', d.cases.toLocaleString());
    console.log('Deaths:', d.deaths.toLocaleString());
    console.log('Recovered:', d.recovered.toLocaleString());
    console.log('Vaccinated:', d.updated);
  });

5. Python — Compare Two Countries

import requests

for country in ['USA', 'India', 'Brazil']:
    resp = requests.get(f'https://disease.sh/v3/covid-19/countries/{country}')
    d = resp.json()
    print(f"{country}: {d['cases']:,} cases, {d['deaths']:,} deaths")

Try it: https://disease.sh/v3/covid-19/all

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API Details

API URL: https://disease.sh/v3
Documentation: disease.sh/docs
Category: Health
Authentication: Not Required
Geographic Coverage: Global — all countries and US states

Frequently Asked Questions

Do I need an API key?: No key required. Disease.sh is completely open and free for any use including commercial applications.
How fresh is the data?: Data is updated every 10-30 minutes from official sources including WHO, CDC, Johns Hopkins, and government health ministries.
Can I get historical data?: Yes, use the historical endpoints: /v3/covid-19/historical/Canada?lastdays=30 returns daily case/death counts for any period.
Does it include vaccination data?: Yes, vaccine data is available at global, country, and state levels including doses administered, people vaccinated, and booster counts.
Can I sort countries by cases?: Use /v3/covid-19/countries?sort=cases to get all countries sorted by confirmed cases, deaths, or active cases.
Does it cover outbreaks beyond COVID-19?: Yes, there are endpoints for monkeypox data and the API framework can support other disease outbreaks as they emerge.

What You Can Build

Live COVID-19 tracker dashboard with maps and charts
Vaccination progress monitor by country
Travel risk assessment tool showing outbreak levels
Historical trend analyzer for epidemiological research
News widget with regional outbreak statistics