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state_getRuntimeVersion – Mythos JSON-RPC Method

Returns the current runtime specification version, implementation version, transaction version, and supported API sets. Use this data to detect runtime upgrades and align client type registries.

Parameters

This method takes no parameters.

Returns

A structured object containing fields such as specName, specVersion, implVersion, transactionVersion, and the list of supported APIs.

Request Example

{
"jsonrpc": "2.0",
"method": "state_getRuntimeVersion",
"params": [],
"id": 1
}

Usage Tips

  • Refresh type bundles when specVersion increments.
  • Track transactionVersion to ensure signed payload formats remain compatible.
  • Archive nodes may report different implName values depending on the build—log them for auditability.