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Breakpoint Engine

Documentation

Breakpoint Engine is the hosted valuation engine your AI works with — explore a financing round, compare term sheets, and see how value moves through your capitalization structure. Your AI reasons; Breakpoint Engine performs the deterministic calculation. It connects to Claude, ChatGPT, Cursor, VS Code, and Claude Code as a Model Context Protocol server at https://cloud.breakpointengine.com/mcp.

Start here

Create an account, buy an Explore, Round, or Raise work-unit pack, then connect the AI you already use:

  • Connect Claude — add Breakpoint Engine as a custom connector on claude.ai and work through your raise in conversation.
  • Connect ChatGPT — add Breakpoint Engine as a custom MCP app (Developer mode) by URL.

New to all of it? Get started walks the whole path: account, credits, connect, first question.

Advanced AI workflows

For technical founders and developers who keep scenario files, capitalization data, notes, and analysis in a local project while Breakpoint Engine computes in the cloud:

  • Cursor & VS Code — where MCP settings live, project vs global config, Connect / OAuth, and Agent mode.
  • Claude Code — one command adds the hosted connector to the desktop agentic CLI.

Founder concepts & reference

  • Preparing capitalization inputs — the JSON your agent sends in: preferred terms, founder common, options, warrants, debt, and market assumptions, with a worked example.
  • Tool reference — all opm_* MCP tools, resources, streaming, and conventions.
  • Use cases & prompts — copy-paste working sessions: term-sheet comparisons, financing-round scenarios, breakpoint walkthroughs.
  • Methodology — what the engine computes and where judgment stays with you.
  • Pricing — Explore, Round, and Raise work-unit packs.

Machine-readable discovery

Frequently asked questions

Is there a Breakpoint Engine ChatGPT plugin?

Use Breakpoint Engine in ChatGPT today by adding it as a custom MCP app by URL (https://cloud.breakpointengine.com/mcp) in developer mode — the full tool surface comes with it. See the ChatGPT setup guide at /docs/chatgpt.

What is Breakpoint Engine?

A hosted, stateless financial-engineering service for private-company equity. Your AI reasons about your financing round; Breakpoint Engine performs the deterministic calculation — economic breakpoints, value allocation across the capitalization structure, and interactive financing scenarios — over the Model Context Protocol (MCP).

Does Breakpoint Engine store my cap table?

No. Capitalization inputs are passed as tool inputs, computed on, and never stored as a system of record. The delivered result is held for up to 48 hours so a retried request is answered rather than re-run and re-billed, then deleted. Scenario transactions are ephemeral and process-local. You own and manage your source information; Breakpoint Engine performs the computation.

Is the output a 409A valuation opinion?

No. Breakpoint Engine provides computational analysis — deterministic calculations over the capitalization structure and assumptions you supply. It is not a valuation opinion, legal, tax, or investment advice. Same inputs, same calculation, same result.

How do I connect it to my AI assistant?

Create an account, buy an Explore, Round, or Raise work-unit pack, then follow the step-by-step guide for your AI: Claude at /docs/claude, ChatGPT at /docs/chatgpt, or Cursor & VS Code at /docs/cursor. Every client connects to the same hosted endpoint: https://cloud.breakpointengine.com/mcp (OAuth).