Canton

This guide explains how institutional clients can access and consume Kaiko's Reference Rates through the Canton Network. This setup offers EU BMR-compliant reference pricing via a secure, decentralized infrastructure designed specifically for institutions requiring regulatory-compliant market data. You can find out more about Kaiko Benchmark References rates here, including the methodologies and coverage.

Before you start

Contact Kaiko Support at [email protected] to get the latest DAR files and installation scripts. We'll send you the DAR files, which are made up of three smart contract components:

• AppInstall: Manages data provider installations and authorization

• DataPointMetadata: Defines asset metadata specifications and publication parameters

• PublishedDataPoint: Contains verified price data with cryptographic timestamps, updated by Kaiko.

All DataPoint contracts are created with strict privacy controls, ensuring data visibility only to authorized parties within your organization's Canton environment.

Integration process

1. Install your DAR files - Upload the provided DAR files to your designated Canton validator node, following the installation scripts provided during onboarding.

2. Share your Party ID - Once installed, contact the Kaiko Support team and provide your Party ID. We will then configure your data feed on-chain so it's ready to consume.

3. Import the template - Import the DataPoint template into your existing DAML workflows by adding it as a dependency within your application architecture.

4. Access the data - Access published data points through the standardized get choice interface:

   nonconsuming choice PublishedDataPoint_Get : PublishedDataPoint_Get_Result
     with
       actor : Party
     controller actor
     do
       pure PublishedDataPoint_Get_Result with publishedDataPoint = this

And that's it. You're up and running!

Contract data structure

The PublishedDataPoint contract has the following standardized structure for institutional consumption:

{
  "contractId": "00f56fe6...cf30cf39",
  "observers": ["YOUR-PARTY-ID"],
  "payload": {
    "oracle": "kaiko-onchain-oracle::122...9a9",
    "dataPointState": {
      "createdAt": "2025-06-16T09:25:01.469352Z",
      "lastUpdatedAt": "2025-07-10T14:01:03.377084Z",
      "createdBy": "kaiko-onchain-data-provider::122...9a9",
      "lastUpdatedBy": "kaiko-onchain-data-provider::122...9a9"
    },
    "dataProvider": "kaiko-onchain-data-provider::122...9a9",
    "dataPoint": {
      "tag": "Scalar",
      "value": "110850.46"
    }
    "dataPointParams": {
      "name": "btc-usd",
      "description": "Bitcoin",
      "unitOfMeasurement": "USD",
      "category": "Pairs"
    }
  }
}