Worlds largest verified nutrition database. It lets you pull data of restaurants, packaged foods and common foods at one call. Lets you build apps where you need to validate name of food items, find quick results to autocomplete text box interfaces and parse requests like 30 minutes yoga to calculate the calories burnt.

National Nutrient Database for Standard Reference. The FoodData Central API provides REST access to FoodData Central (FDC). It is intended primarily to assist application developers wishing to incorporate nutrient data into their applications or websites. To take full advantage of the API, developers should familiarize themselves with the database by reading the database documentation. The API provides two endpoints: the Food Search endpoint, which returns foods that match desired search criteria, and the Food Details endpoint, which returns details on a particular food.

Influenza-like symptoms with Geo-tracking. Flutrack is a system that detects influenza symptoms by processing and displaying influenza related Twitter messages. Flutrack platform gathers and visualizes tweets every 20 minutes in real time. This open platform and its API allow users and developers to extend this project and take influenza detection to higher levels. The platform could work not only with Twitter but with any data provider.

Logging and retrieving diabetes information. The PredictBGL API allows you to build the power of PredictBGL's diabetes management, coaching and analysis directly into your app. The API provides methods to read and write from PredictBGL securely, so your users can bring all their diabetes data with them to your app. Any changes they make will be saved back to all their computers, tablets and mobile phones. You'll also have access to unique and powerful features such as sharing, prediction and analysis.

Open air quality data. This API lets you get data location wise; country and cities. Provides the last updated values, unit of measurement of air quality along with averaging period.

Access to the data from the CMS - medicare.gov; The Socrata Open Data API allows you to programmatically access a wealth of open data resources from governments, non-profits, and NGOs around the world.

BetterDoctor API - get detailed information about doctors in your area. API provides end points of; Doctor Search, Specific Doctor Description, Practice Search, List of Doctors in a certain practice, List of Specialities, List of all known conditions, API health check

Educational content about the US Health Insurance Marketplace. People can use the API to embed content from HealthCare.gov. As official content gets updated on HealthCare.gov, the new content will update automatically and appear on websites using the HealthCare.gov API.

National Plan & Provider Enumeration System, info on healthcare providers registered in US. The API is a new, faster alternative to the downloadable NPPES data files. It allows systems to access NPPES public data in real-time, rather than through batched uploads. The API retrieves data from NPPES daily.

Fast Healthcare Interoperability Resources test data.

NLP that extracts mentions of clinical concepts from text, gives access to clinical ontology. All of Lexigram's technology is built on top of our proprietary knowledge graph that surfaces clinical entities such as drugs, diseases, symptoms and allows you to explore their dynamic relationships. Lexigram provides users with a simple, easy-to-use interface for extracting targeted information from the patient record while preserving the rich contextual data that doctors work so hard to capture.

Public FDA data about drugs, devices, and foods. API provides end points against events / product labelling / NDC directory / recall Enforcement Reports. The goal of the project is to create easy access to public data, to create a new level of openness and accountability, to ensure the privacy and security of public FDA data, and ultimately to educate the public and save lives. The concept was to index high-value, high priority and scalable public-access data, format and document that data in developer and consumer-friendly standards, and make that data available via a public-access portal that enables developers to quickly and easily use it in applications.

human/api is a platform that makes human health data available through a RESTful web service. We make it very easy to securely get a human's current or past health data. The api offers accessing data of types; Blood Pressure, Heart Rate, Sleep, Body Fat, Genetics, BMI, Activity, Height, Blood Glucose, Profile, Weight, Location.

Free all-in-one professional-grade API. It will let you connect user’s symptoms and complaints, with test results and doctor’s examination. It not only provides a list of possible diagnoses, and not only taking symptoms on input, as most symptoms checker does, but it also allows you to incorporate test results, and findings of physical examination (i.e. auscultation). It can generate documentation, and billing suggestions (if you are US-based physician) etc…It can provide a differential list of diagnoses, it can suggest next best step for physician (next test to be ordered, the question on history, and physical examination maneuver) and can show why this or that diagnosis is more / less likely. It is still under development, but has already working API and main functionalities. The EndlessMedical API supports COVID-19/SARS-CoV2 information.

A public repository of un-thresholded statistical maps, parcellations, and atlases of the brain. Brain parcellation — defining distinct partitions in the brain, be they areas or networks that comprise multiple discontinuous but closely interacting regions — is thus fundamental for understanding brain organization and function.