Kaspa (KAS) API Documentation

Kaspa

Kaspa (KAS) is a proof-of-work Layer 1 built on a blockDAG rather than a single-chain structure, using GHOSTDAG to order parallel blocks and currently targeting ten blocks per second. Transactions follow a UTXO model, while full nodes validate proof-of-work blocks, maintain the blockDAG and spendable-output set, and compute the selected ordering used for consensus. This Bitcoin-derived transaction model combined with blockDAG ordering keeps UTXOs familiar while making DAG topology and parallel block data first-class integration concepts.

Kaspa API Methods and Endpoints

NOWNodes exposes Kaspa's interface, plus a few others, depending on what your integration needs: its native REST API for blockDAG, address, UTXO, and transaction queries and transaction submission, and gRPC for node-level protocol calls.

Browse the interfaces below for endpoint details, request parameters, response formats, and integration examples. Create an API key, select Mainnet or Testnet, choose the required interface, and start sending requests from your application.

Weighing Kaspa RPC providers against each other? Read the comparison guide on our blog — this page stays focused on integration reference.