Docs

chain_getRuntimeVersion - JSON-RPC Method

Get runtime specification and transaction versions for Bittensor via chain_getRuntimeVersion.

Returns the current runtime specification and transaction version for the node. As a developer, you use this to:

  • Detect runtime upgrades and adjust clients accordingly (e.g., refresh metadata).
  • Ensure your transaction building/signing logic matches the node’s transactionVersion.
  • Gate feature flags or migrations based on specName/specVersion (e.g., API changes between releases).

Code Examples

chain_getHead - JSON-RPC Method

Get the hash of the current best (non-finalized) block on Bittensor.

chain_subscribeAllHeads - JSON-RPC Method

Subscribe to all imported block headers (including forks) via WebSocket on Bittensor.

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Code Examples