API reference
Snapshot version
Tells whether the snapshot changed without downloading it.
Authorization
AuthorizationOptional
Works without a key. Send one to use its own limit: Authorization: Bearer iwk_… or X-API-Key: iwk_…. See Authentication.
Counted: 60 calls a minute per address without a key.
Response
200 OK: The snapshot's ETag, how many entries and captures it holds, and when it was built.
{
"etag": "\"9a1a440580a3c09c\"",
"items": 3390,
"captures": 2342,
"builtAt": "2026-09-25T00:56:06.376Z"
}Errors
- 401
bad_keyAn API key was sent that is unknown or revoked. Leave it out to use the free limit. - 429
rate_limitedMore calls in a minute than the limit (60 per address without a key, or the key's own). Wait for Retry-After seconds. - 502
unavailableThe sync service behind this route did not answer.