How to Access Cronos via Tendermint RPC API

Step 1: To access Cronos Tendermint RPC, use the native access endpoint with tendermint-rpc at the end:

• Network: Cronos Mainnet
• Request Type: POST

https://svc.blockdaemon.com/cronos/mainnet/native/tendermint-rpc

Step 2: Authenticate your request using your API key. You can include the API key using either of the following headers:

Authorization: Bearer YOUR_API_KEY

X-API-Key: YOUR_API_KEY

Step 3: Specify a Tendermint method in the request body:

{
    "jsonrpc": "2.0",
    "id": 1,
    "result": "0x558153"
}

Example Request

Here is a cURL example for using health to get a node heartbeat for Cronos Mainnet:

curl -X \
POST https://svc.blockdaemon.com/cronos/mainnet/native/tendermint-rpc \
-H 'Authorization: Bearer YOUR_API_KEY' \
-H 'Content-Type: application/json' \
-d '{"jsonrpc": "2.0", "id": 1, "method": "health", "params": []}'

The following is a typical response you will get:

{
    "jsonrpc": "2.0",
    "id": 0,
    "result": {}
}