Web Search vs Nexus

A side-by-side look at the Web Search and Nexus MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Web Search logoWeb SearchSearch & Data Extraction · Remote HTTP/SSEWeb search for AI agents — one tool across 6 engines, routed to the cheapest + cached.36FairAuth: not declaredNexus logoNexusSearch & Data Extraction · Local subprocess (stdio)AI-powered web search server using Perplexity Sonar models with source citations. Zero-install setup via NPX.59GoodAuth: api key required

Verdict: choose Web Search for search & data extraction work over a hosted endpoint; choose Nexus for search & data extraction as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Web Search logoChoose Web Search when

  • You need dedicated capabilities in the Search & Data Extraction domain.
  • You prefer a remote HTTP/SSE transport.
  • You have the keys it needs: GROUNDROUTE_API_KEY.
Explore Web Search

Nexus logoChoose Nexus when

  • You need dedicated capabilities in the Search & Data Extraction domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: API key required.
  • You have the keys it needs: OPENROUTER_API_KEY.
  • You want tools like search.
Explore Nexus

Feature & specification comparison

Rows where the two servers differ are marked.

SpecWeb Search logoWeb SearchNexus logoNexus
CategorySearch & Data ExtractionSearch & Data Extraction
Quality signal36/100 · Fair59/100 · Good
Install commandConfirmedConfirmed
TransportRemote HTTP/SSELocal subprocess (stdio)
AuthNot declaredAPI key required
PricingNot declaredBYOK (pay the provider)
Required env varsGROUNDROUTE_API_KEYOPENROUTER_API_KEY
Verified ownerCommunity listingCommunity listing
GitHub stars122
Directory activity 1 views 0 installs 0 upvotes 3 views 0 installs 0 upvotes
ToolsNot listed1

Tools & capabilities

Web Search tools

No tool names declared yet. Check the project README from the listing page.

Nexus tools 1

  • searchThe main search tool that provides AI-powered search capabilities.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Web Search

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "web-search": {
      "url": "https://api.groundroute.ai/mcp"
    }
  }
}

Nexus

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "adawalli-nexus": {
      "command": "bunx",
      "args": [
        "nexus-mcp"
      ],
      "env": {
        "OPENROUTER_API_KEY": "YOUR_OPENROUTER_API_KEY_HERE"
      }
    }
  }
}

Frequently asked questions

Web Search is categorized under Search & Data Extraction and uses a remote HTTP/SSE transport. Nexus belongs to Search & Data Extraction and uses a local stdio subprocess. Pick Web Search for search & data extraction work and Nexus for search & data extraction.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Web Search has no declared pricing — check the project's own site. Nexus is bring-your-own-key: usage is billed by the API provider you supply a key for. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add web-search and adawalli-nexus as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Web Search has a quality signal of 36/100 (Fair) with 1 views, 0 installs and 1 GitHub stars. Nexus has 59/100 (Good) with 3 views, 0 installs and 22 GitHub stars.