ChainSecured wallet creation. The client signs EIP-712 typed data with their wallet; the server verifies the signature, mints a PKP via DStack MPC, and returns the new wallet address + derivation path so the client can register it on-chain via `registerWalletDerivation`. The server does not maintain a nonce store. Replay protection is a ±5-minute window on the `issuedAt` field plus the per-flow primaryType binding — worst-case replay still just mints an extra unregistered PKP (compute cost only; registration requires a separate wallet signature on-chain).
Web3Key ManagementMPCProgrammable KeysLit Actions
Properties
Name
Type
Description
typed_data
object
EIP-712 typed-data object the wallet signed. Must use `primaryType: "CreateWallet"` and the canonical schema (see `core::eip712`).
signature
string
65-byte 0x-prefixed signature (r||s||v) over the EIP-712 digest of `typed_data`.
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "#/components/schemas/CreateWalletWithSignatureRequest",
"title": "CreateWalletWithSignatureRequest",
"description": "ChainSecured wallet creation. The client signs EIP-712 typed data with their wallet; the server verifies the signature, mints a PKP via DStack MPC, and returns the new wallet address + derivation path so the client can register it on-chain via `registerWalletDerivation`.\n\nThe server does not maintain a nonce store. Replay protection is a \u00b15-minute window on the `issuedAt` field plus the per-flow primaryType binding \u2014 worst-case replay still just mints an extra unregistered PKP (compute cost only; registration requires a separate wallet signature on-chain).",
"type": "object",
"required": [
"signature",
"typed_data"
],
"properties": {
"typed_data": {
"description": "EIP-712 typed-data object the wallet signed. Must use `primaryType: \"CreateWallet\"` and the canonical schema (see `core::eip712`)."
},
"signature": {
"description": "65-byte 0x-prefixed signature (r||s||v) over the EIP-712 digest of `typed_data`.",
"type": "string"
}
}
}
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