Local + RemoteFree

wasm MCP server

xyzzylabs/wasm-mcp

Read-only MCP server for the WebAssembly spec: instructions, types, sections, search, proposals.

2 GitHub stars483 npm downloads / month

Install wasm in Claude Code

Remote URL

Claude Code
claude mcp add --transport http wasm https://mcp.xyzzylabs.ai/wasm/mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "wasm": {
      "url": "https://mcp.xyzzylabs.ai/wasm/mcp"
    }
  }
}

npm

Claude Code
claude mcp add wasm -- npx -y wasm-mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "wasm": {
      "command": "npx",
      "args": [
        "-y",
        "wasm-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the wasm MCP server do?

Read-only MCP server for the WebAssembly spec: instructions, types, sections, search, proposals.

Is the wasm MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does wasm run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add wasm to Claude Code?

Run: claude mcp add --transport http wasm https://mcp.xyzzylabs.ai/wasm/mcp

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