API Reference

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

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

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
}

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