Rosetta API

The Rosetta API is a standardized interface for reading Cardano data and constructing transactions. It is GetBlock's core Cardano interface and the recommended path for exchange integrations, because the same request and response shapes work across every Rosetta-enabled chain.

Every endpoint is an HTTP POST whose body carries a network_identifier and endpoint-specific fields. The API has two halves: a Data set for reading chain state, and a Construction set for building, signing, and submitting transactions through an offline-friendly flow.

Base URL

https://go.getblock.io/<ACCESS-TOKEN>/

Replace <ACCESS-TOKEN> with the access token from the GetBlock dashboard. The network identifier for mainnet is {"blockchain": "cardano", "network": "mainnet"}.

Data API

Endpoint	Description
POST /network/list	List supported networks
POST /network/status	Current network status and tip
POST /network/options	Version and allowed types
POST /block	Block and its transactions
POST /block/transaction	A single transaction from a block
POST /account/balance	Account balance, ada and native assets
POST /account/coins	Unspent outputs for an address
POST /mempool	Transaction ids in the mempool
POST /mempool/transaction	A single mempool transaction

Construction API

The construction endpoints form an ordered flow: derive, preprocess, metadata, payloads, parse, combine, hash, and submit. Only metadata and submit require a live network connection; the rest can run offline.

Endpoint	Description
POST /construction/derive	Derive an address from a public key.
POST /construction/preprocess	Begin construction from operations.
POST /construction/metadata	Fetch online construction metadata.
POST /construction/payloads	Build an unsigned transaction and payloads.
POST /construction/parse	Parse a transaction back to operations.
POST /construction/combine	Combine signatures into a signed transaction.
POST /construction/hash	Hash a signed transaction.
POST /construction/submit	Broadcast a signed transaction.

Support

For technical support and questions:

• Support: [e-mail]

See Also

• Rosetta API Specification

• Cardano (ADA)