ShadowPrice Documentation

Get up and running in under 60 seconds.

⚠ Prerequisites

Requires Node.js 18+ installed on your machine. Download Node.js

1. Get Your API Key

Subscribe at shadowprice.dev. Within 60 seconds, check your inbox for an email from support@shadowprice.dev containing your unique API key (it starts with sp_live_).

2A. Setup for Claude Desktop

ShadowPrice runs via npx. No cloning, no building — just add it to your config.

claude_desktop_config.json

{
  "mcpServers": {
    "shadowprice": {
      "command": "npx",
      "args": ["-y", "shadowprice"],
      "env": {
        "SHADOWPRICE_API_KEY": "YOUR_API_KEY_HERE"
      }
    }
  }
}

Windows

If Claude fails to connect, change the command from "npx" to "npx.cmd" in your config.

Config file location:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

⚠️ Important: You MUST completely quit and restart Claude Desktop for the changes to take effect.

2B. Setup for Cursor IDE

Use the built-in Cursor UI to connect ShadowPrice — no config files needed:

Open Cursor and go to Cursor Settings (Gear icon) → Features → MCP.
Click + Add New MCP Server.
Set the Type to command.
Set the Name to ShadowPrice.
Set the Command to npx -y shadowprice.
Under Environment Variables, add SHADOWPRICE_API_KEY and paste your key as the value.
Click Save and refresh your Cursor window.

2C. Universal MCP Clients

For LangChain, Dify, Flowise, or any custom AI agent, configure your MCP client to use the command type with npx and arguments ["-y", "shadowprice"]. Pass your API key via the SHADOWPRICE_API_KEY environment variable.

3. How to Prompt

Once connected, simply ask your AI agent about any B2B SaaS vendor:

“What is the real enterprise price for Vercel and how do I negotiate it?”

“We're renewing Datadog for 100 engineers. What should we actually be paying?”

“Compare pricing for Notion, Confluence, and Coda for a 50-person startup.”

“Give me a negotiation playbook for our upcoming Salesforce renewal.”

“What discounts are other Series B companies getting on AWS?”

Need Help?

Reach out anytime at support@shadowprice.dev. We typically respond within a few hours.