v1

latestOpenAPI 3.1.0MIT2026-07-13698.3 KB

indexer

Get Signature Nonce

Returns the current signature nonce for a given World ID based on its leaf index. The nonce is used to perform on-chain operations for the World ID.

post/signature-nonce

leaf_indexstring hex required

The leaf index to query (from the WorldIDRegistry).

Accepts decimal or 0x/0X-prefixed hex input.

{
  "leaf_index": "0x1"
}

signature_noncestring hex required

The signature nonce for the account.

Serialized as a canonical 0x-prefixed hex string.

{
  "signature_nonce": "0x0"
}