Build the DUST mapping update tx (Cardano)
Builds the unsigned DUST mapping update Cardano tx: spends the registration UTxO and re-outputs the mapping NFT with a new datum pointing at dust_address_hex (script-authorized via a withdrawal from the validator’s reward account). The wallet vkey-signs with payment + stake keys.
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.
Path Parameters
Body
1^addr(_test)?1[a-z0-9]+$1^[0-9a-fA-F]{64}$0 <= x <= 65535^[0-9a-fA-F]{56}$^([0-9a-fA-F]{2}){1,33}$