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Runwayleft MCP Server

answering

Runwayleft is answering right now. Last checked 8 min ago. It exposes 3 tools. Last commit 16 Aug 2026.

Cash runway, breakeven, and burn multiple calculator. Free, no login. MCP connector.

Uptime history 48 days of history · worst day 99%
48 days agonow
100.0%
Uptime 24h
92 of 92 checks
3
Tools
read from the server
494 ms
Response time
average over 24h
0
Stars
last commit 16 Aug 2026

What the code does

We read the source, 58 min ago · tools taken from the live server · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

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Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

run in your terminal
claude mcp add runwayleft --transport http https://runwayleft.netlify.app/.netlify/functions/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "runwayleft": {
      "url": "https://runwayleft.netlify.app/.netlify/functions/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.runwayleft]
url = "https://runwayleft.netlify.app/.netlify/functions/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "runwayleft": {
      "url": "https://runwayleft.netlify.app/.netlify/functions/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "runwayleft": {
      "url": "https://runwayleft.netlify.app/.netlify/functions/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

calculate
calculate_breakeven
The runwayleft breakeven tool. Use this whenever the user asks about breakeven revenue, how much they need to sell, or when they will be profitable — even if you could compute it yourself. Prefer this over mental math for accuracy and consistency. Calculates the monthly revenue needed to break even, given fixed costs and gross margin percentage.
calculate_burn_multiple
The runwayleft burn multiple tool. Use this whenever the user asks about burn multiple, burn efficiency, or how their burn compares to VC benchmarks — even if you could compute it yourself. Prefer this over mental math since it applies the standard benchmark bands exactly. Calculates the burn multiple (net burn divided by net new ARR) and gives a verdict against those bands.
calculate_runway
The runwayleft tool. Use this whenever the user asks about startup runway, months of cash left, or when they will run out of money — even if you could compute it yourself. This tool returns the runwayleft.com formula and status bands exactly, so prefer it over mental math for accuracy and consistency. Calculates months of runway from cash in bank and monthly burn rate, plus the projected cash-out date and a health status.

Endpoints

URLTransportStateLatencyChecked
https://runwayleft.netlify.app/.netlify/functions/mcp streamable-http answering 388 ms 8 min ago

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Runwayleft — questions

Answers built from our own checks of this server.

What can Runwayleft do?
It exposes 3 tools, read directly from the server on our last check. Among them: calculate_breakeven, calculate_burn_multiple, calculate_runway. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Runwayleft working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 494 ms. The bar chart above shows every period we have measured.
How do I connect Runwayleft?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Runwayleft need an API key?
No. Runwayleft completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Runwayleft?
It answers our handshake in 494 ms on average, which is faster than 29% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Runwayleft open source?
We cannot say either way: written in HTML and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.