API Reference

Complete API reference for OneKey's Polkadot provider

Complete reference for OneKey's Polkadot provider methods and types.

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Methods

Method	Description
web3Enable(dappName)	Enable extension for dApp
web3Accounts(anyType?)	Get all accounts
web3AccountsSubscribe(callback)	Subscribe to account changes
web3SignPayload(payload)	Sign transaction payload
web3SignRaw(payload)	Sign raw message
web3RpcSend(request)	Send RPC request
web3RpcSubscribe(request, callback)	Subscribe to RPC events
web3RpcUnSubscribe()	Unsubscribe from all
web3RpcListProviders()	List RPC providers
web3RpcStartProvider(key)	Start specific provider

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Types

Injected Account

interface InjectedAccount {
  address: string          // Substrate address
  name?: string            // Account name
  type?: 'sr25519' | 'ed25519' | 'ecdsa'
  genesisHash?: string     // Optional chain restriction
}

Signer Payload JSON

interface SignerPayloadJSON {
  address: string
  blockHash: string
  blockNumber: string
  era: string
  genesisHash: string
  method: string
  nonce: string
  specVersion: string
  tip: string
  transactionVersion: string
  signedExtensions: string[]
  version: number
}

Signer Payload Raw

interface SignerPayloadRaw {
  address: string
  data: string             // Hex-encoded data
  type: 'bytes' | 'payload'
}

Signer Result

interface SignerResult {
  id: number
  signature: string        // Hex signature
}

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Supported Chains

Chain	Description
Polkadot	Main relay chain
Kusama	Canary network
Acala	DeFi hub
Moonbeam	EVM-compatible
Astar	Smart contract platform
Any Substrate	Custom chains