
99.95% availability
Our APIs can be used for mission-critical systems.
Secure and Immutable
activity is securely stored on a blockchain
Active Healthcare Users
Our APIs are used in active healthcare applications
About us
Tamarin Health is leading the industry in creating decentralized technology that works for real-world healthcare applications. Our APIs are the product of client-driven demands for transparency between healthcare organizations that share critical patient data. Aletheia is a straightforward event-logging API that increases trust between data-sharing partners.
With Aletheia, you can store an immutable history of your application events, including the state of complete data objects. This enables an audit-able trail of data access and changes using public immutable blockchains like Ethereum and Nexus. To get started create an account and use our interactive interface to explore our APIs.
Our APIs

Health Audit v.1
an event application logging API that leverages the Ethereum blockchain

Aletheia v.1
currently only available to our development partners, this API will adds efficient search and data tampering detection to Health Audit API

Custom API
Need a custom API using a different blockchain protocol or interface?
Health Audit v.1 is an intuitive event logging API that provides a secure interface for storing messages comprised of cryptographic hashes and related meta-data. In the example, we are storing the keccak256 hash of a JSON data object representing a discreet request for patient data through our application.
This data is stored in the event log of a corresponding smart-contract on the Ethereum blockchain. The return value of this API call is the block number and transaction hash that can be used to find this event on the blockchain.
POST /log
{
"logtype": "app",
"level": "INFO",
"tags": "patient request",
"user": "CCv2.1",
"message": "0x58e5a1c7fbc849eddc100d44e86276168a8
c7baaa5604e44ba6f5eb8ba1b7eb
"
}
Trust is our priority
"We recognize the importance of working together with others in order to drive innovation in healthcare..."
CEO at Tamarin Health