generated: '2026-07-18'
method: derived
source: https://doc.aurora.dev/
notes: >-
  Standards conformance for the Aurora JSON-RPC API, derived from live probes of the mainnet and
  testnet endpoints and from Aurora's documented Ethereum compatibility.
standards:
- id: json-rpc-2.0
  conforms: true
  evidence: eth_chainId probe returned a well-formed JSON-RPC 2.0 result object on mainnet and testnet.
- id: ethereum-json-rpc
  conforms: true
  evidence: Implements the standard eth_* method namespace; eth_chainId returned 0x4e454152 (mainnet) / 0x4e454153 (testnet).
- id: evm-compatible
  conforms: true
  evidence: Aurora Engine implements the Ethereum Virtual Machine as a smart contract on NEAR; full Solidity/EVM bytecode compatibility.
- id: eip-155-chain-id
  conforms: true
  evidence: Distinct chain IDs 1313161554 (mainnet) and 1313161555 (testnet) for replay-protected signing.
- id: websocket-pubsub
  conforms: true
  evidence: eth_subscribe/eth_unsubscribe pub-sub methods documented over WebSocket.
- id: rfc9457-problem-details
  conforms: false
  evidence: Errors follow the JSON-RPC 2.0 error object, not RFC 9457 application/problem+json.
- id: oauth2
  conforms: false
  evidence: Public endpoints are unauthenticated; no OAuth surface.