ApiLnurl
Check lightning address username availability
GET
First-party domains only (zapapi.app + SERVED_DOMAINS). For marketplace domains use GET /marketplace/search — it fans out live to each domain provider.
username*stringdomain*stringX-API-Version?stringAPI version for header-based versioning
Default
"1"Value in
"1""2"curl -X GET 'http://localhost:3001/api/v1/lnurl/availability/string?domain=string'Example Response200
Empty