Build the DUST registration tx (Cardano)
Builds the unsigned DUST registration Cardano tx (status=‘complete’). The datum’s c_wallet is the address’s STAKE key hash (the credential the Midnight indexer keys registrations on, matching the portal). Returns tx_cbor ready for the wallet to vkey-sign with BOTH payment and stake keys and submit via the standard Cardano submit flow, plus the primitives (validator address, datum, redeemer, mint spec) for verification.
Authorizations
API key (programmatic access — recommended)
Send your API key in the X-Api-Key header. Keys start with nxs_ and are
created in the dashboard (or via POST /api/keys with a session JWT).
Each key is scoped to one chain and one network (for example
cardano-mainnet), fixed at creation time. It cannot query a different network
on the same chain, and it cannot query a different chain at all. A mismatched
network parameter returns 400 Network Mismatch. Create one key per chain
and network under the same account.
This is the credential most integrations should use.