Sieve Mcp
Connects Claude to Sieve's venture capital due diligence API for startup screening. Exposes four tools: sieve_screen to analyze a company by name or URL, sieve_status to poll analysis progress, sieve_summary to retrieve the full investment memo with a 0-140 score across seven dimensions (team, market, product, moat, business model, traction, and intangibles), and sieve_usage to check your monthly quota. Each analysis cross-references pitch deck claims against real-world evidence and flags findings as documented, discovered, inferred, or missing. Reach for this when you need structured, repeatable deal evaluation instead of ad-hoc ChatGPT summaries. Requires a Sieve API key from their web app.
- GitHub stars
- 4
- tools
- 4
- auth
- Secret needed
- transport
- STDIO
- env var
- 1
- last updated
- Mar 3, 2026
Tools
4 toolsPublic tool metadata for what this MCP can expose to an agent.
sieve_screenStart a Quick Screen — pass a company name, optional website URL, pitch deck text, or description
Start a Quick Screen — pass a company name, optional website URL, pitch deck text, or description
No parameter schema in public metadata yet.
sieve_statusPoll analysis progress — see which dimensions are complete and current scores
Poll analysis progress — see which dimensions are complete and current scores
No parameter schema in public metadata yet.
sieve_summaryGet the full investment memo — Sieve Score, recommendation, strengths, concerns, evidence
Get the full investment memo — Sieve Score, recommendation, strengths, concerns, evidence
No parameter schema in public metadata yet.
sieve_usageCheck how many screens you've used this billing period
Check how many screens you've used this billing period
No parameter schema in public metadata yet.
Sponsors
Agent CaffeineSponsoredClose your lid, come back to finished work
SnugSponsoredThe clipboard manager for the AI eraPromote your product hereReach 125k+ visitors monthly
WaxSponsoredBlock anything with supervision, without erasing your iPhonePromote your product hereReach 125k+ visitors monthly
knobsSponsoredSee your site on any phone, any day, in any languageConfiguration
SIEVE_API_KEY*secretYour Sieve API key (get one at https://app.sieve.arceusxventures.com/settings)
Readme
Sieve MCP Server — AI-Powered Venture Capital Due Diligence
The first MCP server purpose-built for venture capital. Drop a company name into Claude, Cursor, or Windsurf and get a quantified investment memo in 5 minutes — not a ChatGPT summary, a real analyst-grade IMPACT-X assessment with every claim verified against evidence.
"Screen a startup called Acme Corp" → Sieve researches the company, scores it across 7 dimensions, verifies every claim, and tells you: Take the meeting or Pass.
Why Sieve?
Most VCs screen 50+ deals a month. Most of those are obvious passes — but you still spend 2-3 hours per deal on basic diligence before you know that. Sieve does that work in 5 minutes.
What You Get
Details
- Repository
- github.com/lmwharton/sieve-mcp
- Package
sieve-mcp- Transport
- STDIO
- Auth
- Required
- Registry
- MCP registry, active