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mcp/harbor
Grok

TestLens for Grok

net.bigfloppy.testlens/testlens

Paste code + tests, get a strong/weak verdict with killed/survived mutants. Free API + MCP.

client:Grok transport:streamable-http tools:2

Install TestLens in Grok

.mcp.json (in your project root) 

{
  "mcpServers": {
    "testlens": {
      "type": "http",
      "url": "https://testlens.bigfloppy.net/mcp"
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

What Grok can do once it is connected

TestLens in other clients

TestLens MCP server