The University of Michigan Medical School created the Vaccine Investigation and Online Information Network (VIOLIN) because the vaccine research field lacked a web-based central repository where researchers could easily retrieve the vast amount of data underlying hundreds of years of research. Not only has VIOLIN provided the online database, the database is easily accessible via the VIOLIN API.
Now you can use an API to find out once and for all whether you are among the living. The U.S. Social Security Administration maintains a "death index" to prevent fraud. CDYNE Corporation subscribes to the updates and has opened the index up with a fee-based API (details at our Death Index API profile).