Start a wallet ownership proof

Start a wallet ownership proof

Mints a single-use challenge for a self-hosted (unhosted) EVM wallet. The
end user signs the returned message verbatim with their wallet
(EIP-191 personal_sign — no gas, nothing broadcast on-chain); the
signature is then submitted to the verify endpoint. The nonce expires
shortly and is bound to this account and address.

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Body Params
string
required
length between 42 and 42

EVM (0x) wallet address the user will prove control of

string
enum
Defaults to ethereum

EVM chain the proof is recorded against

Allowed:
length ≤ 128

Your business reference for this proof

Responses

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