🔷 Nexus Gateway Node.js SDK (v3.1.3)

The High-Performance Sovereign Infrastructure for Node.js & TypeScript.

Reduce LLM latency by 95% and costs by 90% with a single unified data plane.

⚡ Key Superpowers

• Hybrid Semantic Caching: Sub-5ms response times. Stop paying for the same API call twice.
• Adaptive Discovery: Automatically heals provider 404 errors (Gemini/Google) in real-time.
• Sovereign Shield: Deterministic PII redaction and governance before data leaves your server.
• Universal SDK: Single interface for OpenAI, Groq, Gemini, and Anthropic.

📦 Installation

npm install nexus-gateway-js

🔐 Bring Your Own Key (BYOK)

Nexus Gateway allows you to utilize our high-speed caching and observability layer using your own provider billing. BYOK requests bypass Nexus credit limits.

import { NexusClient } from 'nexus-gateway-js';

const client = new NexusClient({
  apiKey: "nk-your-nexus-key"
});

async function main() {
  // Use GPT-4o with your own OpenAI Key
  const stream = await client.chat("Analyze this technical debt...", {
    model: "gpt-4o",
    providerKey: "sk-proj-your-personal-openai-key", // 🚀 BYOK Injection
    stream: true
  });

  for await (const chunk of stream) {
    process.stdout.write(chunk);
  }
}

🚀 CLI Tool: Sovereign Console

Node.js SDK includes an interactive terminal for real-time inference.

# Launch the Nexus Shell
npx nexus-chat

Inside the CLI:

• /key [sk-...] - Inject a provider key to unlock Premium models (BYOK mode).
• model=[name] - Switch engine (e.g., model=llama or model=gemini).
• /exit - Terminate secure session.

🛠️ Usage Examples

1. Real-Time Streaming (Default)

const stream = await client.chat("Explain the Aho-Corasick algorithm.");

for await (const chunk of stream) {
  console.log(chunk);
}

2. Standard Sync Chat

const response = await client.chat("What is the capital of France?", { 
    stream: false 
});
console.log(response); // "Paris"

🤖 Supported Model Engines
  Provider	Alias	Default Model
  Groq	llama	llama-3.3-70b-versatile
  Google	gemini	gemini-1.5-flash
  OpenAI	gpt	gpt-3.5-turbo
  OpenAI Pro	pro	gpt-4o

📊 Infrastructure Benchmarks
Feature	Standard API	Nexus Gateway
Latency	1200ms - 3000ms	5ms (Cache Hit)
Cost	100% Billing	$0.00 (Cache Hit)
Failover	Manual	Autonomous Self-Healing

🔑 Authentication
To use this SDK, you require a valid API Key.
Get your Free API Key here : https://www.nexus-gateway.org/

License MIT License © 2025 Sunny Anand |