Sieve MCP Server

by lmwhartonio.github.lmwharton/sieve-mcpv0.1.4

Startup due diligence: screens startups across IMPACT-X dimensions and returns a Sieve Score, evidence-typed findings and a meeting recommendation.

5Pythonstdioofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Stale7mo ago

Install Sieve MCP server

claude mcp add sieve -e SIEVE_API_KEY='<sieve-api-key>' -- uvx sieve-mcp

{
  "mcpServers": {
    "sieve": {
      "command": "uvx",
      "args": [
        "sieve-mcp"
      ],
      "env": {
        "SIEVE_API_KEY": "<sieve-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "sieve": {
      "command": "uvx",
      "args": [
        "sieve-mcp"
      ],
      "env": {
        "SIEVE_API_KEY": "<sieve-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "sieve": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "sieve-mcp"
      ],
      "env": {
        "SIEVE_API_KEY": "<sieve-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "sieve": {
      "command": "uvx",
      "args": [
        "sieve-mcp"
      ],
      "env": {
        "SIEVE_API_KEY": "<sieve-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
SIEVE_API_KEY	yes	yes	Your Sieve API key (get one at https://app.sieve.arceusxventures.com/settings)

Freshness

Stale — last maintenance signal 7mo ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-03-10 · 7mo ago · GitHub
Latest release
2026-03-18 · 7mo ago · GitHub · v0.3.0
Package published
no data · npm/PyPI
Registry entry updated
2026-03-03 · 7mo ago · official registry · v0.1.4

FAQ

›How do I install the Sieve MCP server in Claude Code?

Run: claude mcp add sieve -e SIEVE_API_KEY='<sieve-api-key>' -- uvx sieve-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Sieve require an API key?

Yes. It expects SIEVE_API_KEY, of which 1 is a secret.

›Can I use Sieve as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Sieve in the official MCP registry?

Yes, as io.github.lmwharton/sieve-mcp.