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Babylon (BABY) API Documentation

Babylon

Babylon Genesis (BABY) is a Cosmos SDK Layer 1 secured by CometBFT consensus and designed as the coordination layer for Bitcoin staking, with dedicated BTC Light Client, BTC Staking, Finality, and Checkpointing modules. CosmWasm contracts execute in a Rust-based environment, while full nodes maintain account-based Cosmos state and verify blocks, staking records, checkpoints, and Bitcoin-linked protocol data. This combination makes familiar Cosmos transaction and state conventions the interface to a system that also reasons about Bitcoin staking and finality.

Babylon API Methods and Endpoints

NOWNodes exposes Babylon's interface, plus a few others, depending on what your integration needs: JSON-RPC for reading chain state and broadcasting transactions.

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

Quick start

01

Get an API key

Sign up and generate a free key from the dashboard.

Get key →
02

Select environment

Mainnet or Sepolia testnet.

03

Choose an interface

RPC, WSS, Blockbook, or Trace/Debug.

04

Send a request

Call it from your application.

RPCJSON-RPCStandard RPC methods for reading chain state and broadcasting transactions.Node APIs →WSSWebSocketPersistent connections for new blocks, pending transactions, and log events as they happen.WSS API →T/DTrace & DebugStep-level execution traces for inspecting calls and diagnosing transactions.Trace & Debug API →ARCArchive modeFull historical state access beyond standard node retention.Archive nodes →MCPModel Context ProtocolThe Model Context Protocol (MCP) is an open standard that lets AI assistants call external tools through a uniform interface.MCP →

Ready to build on: BABY

Create a free API key and start sending requests in minutes.