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nexus

adawalli/nexus

Nexus is a Model Context Protocol (MCP) server that provides AI-powered search functionality through the OpenRouter API. It integrates with MCP-compatible clients including Claude Desktop and Cursor, providing search capabilities via multiple model families including Perplexity Sonar (real-time web search) and Grok 4 (training-data knowledge).

View on GitHub

Install

bunx nexus-mcp

Client configuration

{
  "mcpServers": {
    "nexus": {
      "command": "bunx",
      "args": [
        "nexus-mcp"
      ],
      "env": {
        "OPENROUTER_API_KEY": "<OPENROUTER_API_KEY>"
      }
    }
  }
}

Environment variables

OPENROUTER_API_KEY
Author
@adawalli
Category
Developer Tools, Search Tools
License
MIT
Updated
Oct 6, 2026

Features

  • Bunx/NPX-based execution with zero local installation

  • Cross-platform compatibility (macOS, Linux, Windows)

  • Bun 1.0+ or Node.js 18+ runtime requirement

  • Automated version updates via npm registry

  • Multiple model tiers with different capabilities:

  • Real-time web search with current information (Perplexity models)

  • Training-data knowledge responses (Grok 4)

  • Structured citation extraction from responses

  • Configurable model parameters (temperature, max tokens, timeout override)

  • Comprehensive error handling with typed error classes

Tools (5)

  • sonar

    Fast Q&A with real-time web search (30s timeout)

  • sonar-pro

    Multi-step queries with real-time web search (60s timeout, premium)

  • sonar-reasoning-pro

    Chain-of-thought reasoning with real-time web search (120s timeout, premium)

  • sonar-deep-research

    Exhaustive research reports with real-time web search (300s timeout, premium)

  • grok-4

    Training-data knowledge, no real-time search (60s timeout, premium)

Details on this page are taken from the project's README. Open README

Supported clients

Clients mentioned in this server's README:

View all
Claude Desktop logo

Claude Desktop

Desktop · Freemium · Proprietary

Anthropic's official Claude AI desktop application. Supports MCP servers to extend functionality.

WindowsMacOS
Cursor logo

Cursor

Desktop · Freemium · Proprietary

The first agentic IDE. The Cursor editor truly merges how developers and AI work together, delivering a magical coding experience.

WindowsMacOSLinux

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