Celereum

Celereum

Developer Documentation

Build on Celereum

SDKs, RPC APIs, and 6 Built-in Programs

SDK v1.4.0 • Node v1.4.0 • December 2025

Quick Start

Step 1: Install SDK
npm install @celereum/sdk

Includes: Connection, Keypair, Transaction, SystemProgram

Connect

import { Connection } from '@celereum/sdk';

const conn = new Connection(
  'http://localhost:8899'
);
const height = await conn.getBlockHeight();

Generate Wallet

import { Keypair } from '@celereum/sdk';

const wallet = Keypair.generate();
console.log(wallet.publicKey.toBase58());
// Ed25519 keypair (32-byte pubkey)

Transfer CEL

import { Transaction, SystemProgram, sendAndConfirmTransaction } from '@celereum/sdk';

const tx = new Transaction().add(
  SystemProgram.transfer({
    fromPubkey: wallet.publicKey,
    toPubkey: recipient,
    celers: 1_000_000_000, // 1 CEL (9 decimals)
  })
);

const signature = await sendAndConfirmTransaction(connection, tx, [wallet]);

6 Built-in Programs

System

Account creation, CEL transfers

system.rs

Token (CEL-20)

Fungible tokens

token.rs

AMM

x*y=k DEX formula

amm.rs

Bridge

Cross-chain transfers

bridge.rs

Vesting

Token vesting

vesting.rs

RPC Endpoints

Development
localhost:8899
Local
Testnet
rpc.testnet.celereum.com
Testing
Mainnet
rpc.celereum.com
Coming Soon

WebSocket available on same endpoints

SDK Packages

@celereum/sdkv0.1.0

Core SDK - Connection, Keypair, Transaction

npm install @celereum/sdk
@celereum/wallet-adapter-reactv1.0.0

React hooks - useWallet, useConnection

npm install @celereum/wallet-adapter-react
@celereum/wallet-adapter-react-uiv1.0.0

Pre-built UI components

npm install @celereum/wallet-adapter-react-ui

JSON-RPC Methods

getBalanceGet account balance in celers
getBlockHeightCurrent block height
getTransactionTransaction details by signature
sendTransactionSubmit signed transaction
getAccountInfoAccount data and owner
getRecentBlockhashRecent blockhash for signing

Network Parameters

Timing

Slot Time200ms
Ticks/Slot32
Slots/Epoch270,000
Finality50ms

Limits

Max Block Size32 MB
Max TX/Block3,200
Target TPS200,000
Base Fee5,000 celers

Resources

GitHub

Source code and examples

Explorer

View transactions

Explore the Ecosystem

DEX • Wallet • Explorer • Indexer • 5 SDK packages

SDK v1.4.0 • Node v1.4.0 • December 2025 • Celereum Foundation

Contact: developers@celereum.com