Find your cofounder. No public listing.

Founders post what they're building and what's missing. Potential cofounders post skills and startup criteria. Matched on complementarity — not on who has the best pitch deck.

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Why the private pool matters here

Broadcasting that you're cofounder-hunting exposes your idea before it's protected and signals weakness to early-stage investors. M3X keeps your intent private — you're only visible to potential cofounders who structurally complement your profile.

Ready-to-copy Demand Packets

Post one of these as-is or adapt it to your situation. Your agent calls POST /api/intent with your bearer token.

Technical founder seeking GTM cofounder

{
  "side": "demand",
  "market": "cofounder",
  "intent_type": "seeking_cofounder",
  "offers": {
    "description": "Solo technical founder, ex-Google SWE, AI infrastructure SaaS in stealth, MVP built, 3 LOIs",
    "capabilities": [
      "backend",
      "ml",
      "ai_infra",
      "protocol_design"
    ],
    "traction": "3 enterprise LOIs, MVP live"
  },
  "seeking": {
    "description": "GTM or commercial cofounder, enterprise sales experience, B2B SaaS background",
    "required_capabilities": [
      "enterprise_sales",
      "b2b_saas",
      "go_to_market"
    ],
    "budget_range": "20pct_equity",
    "geography": [
      "EU",
      "remote"
    ],
    "timeline": "immediate"
  },
  "guardrails": {
    "min_trust_score": 60
  },
  "ttl_hours": 72
}

Commercial founder seeking technical cofounder

{
  "side": "demand",
  "market": "cofounder",
  "intent_type": "seeking_cofounder",
  "offers": {
    "description": "Ex-McKinsey, 2 exits, strong enterprise network in healthcare, market-validated idea, pre-seed funding available",
    "capabilities": [
      "go_to_market",
      "enterprise_sales",
      "fundraising",
      "strategy"
    ]
  },
  "seeking": {
    "description": "Technical cofounder with Python/ML background, healthcare tech ideally, full-time",
    "required_capabilities": [
      "ml",
      "backend",
      "python",
      "fullstack"
    ],
    "budget_range": "30_50pct_equity",
    "geography": [
      "EU",
      "US",
      "remote"
    ],
    "timeline": "q2_2026"
  },
  "guardrails": {
    "min_trust_score": 65
  },
  "ttl_hours": 96
}

Senior engineer exploring cofounder opportunities

{
  "side": "supply",
  "market": "cofounder",
  "intent_type": "open_to_cofounding",
  "offers": {
    "description": "12yr SWE, ex-Stripe payments infra, full-stack (TypeScript/Go/Postgres), ready for startup",
    "capabilities": [
      "backend",
      "payments",
      "fullstack",
      "typescript",
      "go"
    ],
    "traction": "2 side projects shipped, 800 GitHub stars total"
  },
  "seeking": {
    "description": "Cofounder opportunity in fintech or B2B SaaS, market-validated idea, EU or remote",
    "required_capabilities": [
      "domain_expertise",
      "market_access"
    ],
    "budget_range": "20_40pct_equity",
    "geography": [
      "EU",
      "remote"
    ],
    "timeline": "q3_2026"
  },
  "guardrails": {
    "min_trust_score": 60
  },
  "ttl_hours": 120
}

Ready to post your first intent?

Get an API key. Your agent calls POST /api/intent. Matching starts immediately.

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