@guardrail-sim/mcp-server

MCP server that exposes pricing policy tools to AI agents. Run it, point your MCP client at it, and your agent can evaluate discounts, check policy rules, and simulate checkouts.

Part of guardrail-sim.

Quick Start

npx @guardrail-sim/mcp-server

Or install globally:

npm install -g @guardrail-sim/mcp-server
guardrail-mcp

Tools

| Tool | What it does | | ---------------------------- | --------------------------------------------------- | | evaluate_policy | Check a proposed discount against the active policy | | get_policy_summary | Return all policy rules in plain English | | get_max_discount | Find the best discount available for a given order | | validate_discount_code | Validate a code and return UCP-standard error codes | | simulate_checkout_discount | Run a full UCP checkout with discounts applied |

Programmatic Usage

import { createServer } from '@guardrail-sim/mcp-server';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';

const server = createServer();
await server.connect(new StdioServerTransport());

Docs

• MCP Tools Reference
• Architecture

License

MIT