How to Subscribe to DPSN Data Streams: A Guide for Developers

What is DPSN?

The Decentralized Pub-Sub Network (DPSN) is revolutionizing data delivery for AI agents and autonomous systems. As an open-source decentralized network, DPSN solves the critical challenge of reliable, efficient message delivery across global networks with built-in economic incentives for operators.

Unlike traditional centralized systems, DPSN distributes message delivery across independent nodes, dramatically improving reliability and reducing latency—essential requirements for modern AI agents and data-driven applications.

Why Developers Should Use DPSN

DPSN's data streams deliver unprecedented advantages for AI agents and autonomous systems:

• Single Integration Point: Eliminate the complexity of multiple data provider SDKs

• Focus on Core AI Logic: Let DPSN handle your data requirements while you focus on building intelligence

• Real-time Data Processing: Get instant updates with minimal latency for time-sensitive AI decision making

• Streamlined Development: Reduce the complexity of managing data subscriptions

Quick Guide: Subscribing to DPSN Topics

1. Install the DPSN Client SDK using npm or yarn:

npm install dpsn-client

# or

yarn add dpsn-client

2. Import and Initialize the Client

import DpsnClient from 'dpsn-client';

To initialize and authenticate with DPSN services, you'll need an EVM wallet private key:

• Use an EVM wallet: Create or use an existing Ethereum-based wallet, preferably on testnet for security

• Get your private key: Export it from your wallet's security settings

• Configure the client:

typescript
  const dpsnService = new DpsnClient(
     "betanet.dpsn.org",     // DPSN network endpoint
     "<YOUR_EVM_WALLET_PRIVATE_KEY>",  // Your EVM wallet private key (for authentication only)
     {
        wallet_chain_type: 'ethereum',
        network: 'testnet'
     }
  );

Security note: Your private key is used only for authentication. DPSN won't execute transactions or access funds.

3. Choose Your Data Stream

Each stream has a unique topic identifier. For example, to subscribe to BTC/USDT price updates:

const TOPIC = "0xe14768a6d8798e4390ec4cb8a4c991202c2115a5cd7a6c0a7ababcaf93b4d2d4/BTCUSDT/ticker";

4. Create the Subscription

await dpsnService.subscribe(TOPIC, (topic, message, packetDetails) => {// Handle incoming messages
         console.log('💰 Received Binance Price Update:', message);
     });
     console.log('Successfully subscribed to BTC/USDT price feed');

Best Practices for Integration

To maximize the performance, note the following:

• Error Handling: Implement robust error handling for uninterrupted agent operation

• Data Validation: Always validate incoming data before using it in agent decision processes

• Reconnection Logic: Build automatic reconnection if the connection drops

• Rate Awareness: Optimize your agent's processing to handle the stream's update frequency

50+ Available Data Streams

DPSN offers various data streams perfect for AI and autonomous systems:

• Cryptocurrency market data (OHLC prices, volumes data from 10+ chains)

• Github repository data

• Crypto News and social media feed data from Farcaster

and more data streams.

Visit the DPSN Streams Store to explore all available data streams.

Need Custom Streams?

For enterprise systems requiring custom streams, lower latency options, or specialized data feeds, please reach out to us directly on our official telegram channel - https://t.me/dpsn_dev. We offer tailored solutions for developers building high-frequency trading systems, autonomous decision-making platforms, and other data-intensive applications.