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Exporting MCP Definitions

If you have a running MCP server and want to generate a local definition file for Holocron, use this script. It connects to the server, fetches all tools, resources, and prompts, and writes them to a JSON file.

Script

Save this as scripts/export-mcp.ts in your project:
import { Client } from '@modelcontextprotocol/sdk/client/index.js'
import { StreamableHTTPClientTransport } from '@modelcontextprotocol/sdk/client/streamableHttp.js'
import fs from 'node:fs'

const url = process.argv[2]
if (!url) {
  console.error('Usage: npx tsx scripts/export-mcp.ts <MCP_SERVER_URL>')
  process.exit(1)
}

const client = new Client({ name: 'holocron-export', version: '1.0.0' })
const transport = new StreamableHTTPClientTransport(new URL(url))

await client.connect(transport)
console.log('Connected to', url)

const [toolsResult, resourcesResult, promptsResult] = await Promise.all([
  client.listTools().catch(() => ({ tools: [] })),
  client.listResources().catch(() => ({ resources: [] })),
  client.listPrompts().catch(() => ({ prompts: [] })),
])

const output = {
  serverUrl: url,
  tools: toolsResult.tools ?? [],
  resources: resourcesResult.resources ?? [],
  prompts: promptsResult.prompts ?? [],
}

await client.close()

const outPath = 'mcp-tools.json'
fs.writeFileSync(outPath, JSON.stringify(output, null, 2) + '\n')
console.log(`Wrote ${output.tools.length} tools, ${output.resources.length} resources, ${output.prompts.length} prompts to ${outPath}`)

Usage

Install the MCP SDK, then run the script with your server URL:
npm install @modelcontextprotocol/sdk
npx tsx scripts/export-mcp.ts https://your-mcp-server.com/mcp
This creates mcp-tools.json at the project root, ready to use in your docs.json:
{
  "tab": "MCP Tools",
  "mcp": "mcp-tools.json"
}
Re-run the script whenever your MCP server's tools change and commit the updated file.
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