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Connect YC Startup Prover to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Stop building products that nobody actually wants.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 1 capability

We ship only the actions that matter.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through YC Startup Prover.

  1. 01

    Validate yc startup

    This capability audits your startup strategy against five YC-style axes to determine if your business is actually proven. It cross-checks your problem validation, unscalable actions, real metrics, user engagement, and core value to issue a final verdict.

Real work

What teams actually run

01

Pitch Deck Auditing

Run your pitch points through the MCP to see if a YC partner would reject them immediately.

02

Product Roadmap Planning

Check new feature ideas against the core value axis to prevent bloat.

03

Weekly Progress Reviews

Use the user and metrics axes to evaluate your weekly growth and learning.

04

Pivot Decision Making

Determine if your current strategy is failing due to ivory tower research or lack of user contact.

Automate a task

Put YC Startup Prover to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

YC Startup Prover works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put YC Startup Prover to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

908ms average. Fast in production.

YC Startup Prover is checked daily against the live service.

Daily averagePeak 1320ms
Oct 3Today
Fastest day
744ms
Slowest day
1320ms
14-day trend
Improving-6%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of YC Startup Prover, so you can see the experience inside your AI.

It does not authenticate your account with YC Startup Prover. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

YC Startup Prover Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_g1EMCKEIjzrv2vEB6KdwkkLWZjkjDWP97a5rpZ9x/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — YC Startup Prover capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "yc-startup-prover-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_g1EMCKEIjzrv2vEB6KdwkkLWZjkjDWP97a5rpZ9x/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up YC Startup Prover in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work YC Startup Prover owners hand off.

This is built for founders and product leaders who want to avoid the common pitfalls of early-stage development.

  • 01

    Founders

    Use it to stress-test business models and pivot before burning through capital.

  • 02

    Product Managers

    Hand off roadmap ideas to the AI to ensure they solve real user problems.

  • 03

    Venture Capitalists

    Use the framework to quickly audit the viability of a pitch or a startup's claims.

FAQ

Questions YC Startup Prover owners ask.

  • 01

    What is the YC Startup Prover?

    It is an MCP that uses the Y Combinator framework to audit startup strategies for common failures like premature scaling or vanity metrics.

  • 02

    Which AI clients can I use with this MCP?

    You can use it with any MCP-compatible client, including Claude, Cursor, Windsurf, and VS Code.

  • 03

    How does it identify feature bloat?

    The capability checks if your product has a single, clear value proposition that is 10x better than alternatives, rather than many mediocre features.

  • 04

    Does this capability replace market research?

    No, it actually pushes you to do more direct user conversations instead of relying on passive market research or surveys.

  • 05

    What is a 'STARTUP_PROVEN' verdict?

    A 'STARTUP_PROVEN' verdict means your strategy passed all five axes: problem, unscalable beginnings, real metrics, user obsession, and core value.

  • 06

    Why does it reject 'our proprietary algorithm'?

    PG: 'Make something people want.' Not 'build something cool.' Start from the problem. Who has it? How do they solve it today? How much do they pay? The technology is the last step, not the first.

  • 07

    What does 'default alive' mean?

    At current growth rate and burn rate, will you reach profitability before running out of money? Yes = default alive. No = default dead. This single question determines if you survive.

  • 08

    Why ONE thing instead of many features?

    Dropbox: file sync. Stripe: payments in 7 lines of code. The feature list is the problem. Find the one thing you do 10x better and strip everything else. Users describe you by your one thing or they do not describe you at all.

Explore

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