bulkrender-mcp

BulkRender MCP server. Generate DOCX and PDF documents from any AI assistant that supports the Model Context Protocol (Claude, Cursor, Windsurf, Cline, and more).

Tools

Tool	Description	Credits
list_templates	List all templates with their variables	0
get_template	Get template details and variable schema	0
generate_document	Generate a single document (DOCX or PDF)	1–2
generate_batch	Generate documents for multiple records (up to 500)	1–2 each
check_credits	Check remaining credits	0

Credit costs: DOCX = 1 credit, PDF = 2 credits.

Prerequisites

1. A BulkRender account at bulkrender.com
2. An API key (br_live_...). Generate one from Settings, Platform API Keys (shown once, copy immediately)
3. Node.js 18+

Installation

Claude Code (CLI, recommended)

Run once in your terminal:

claude mcp add bulkrender --scope user --env BULKRENDER_API_KEY=br_live_YOUR_KEY_HERE -- npx bulkrender-mcp

Verify:

claude mcp list
# bulkrender   ✓ Connected

Claude Desktop (Windows)

Edit C:\Users\<you>\AppData\Roaming\Claude\claude_desktop_config.json:

{
  "mcpServers": {
    "bulkrender": {
      "command": "npx",
      "args": ["-y", "bulkrender-mcp"],
      "env": {
        "BULKRENDER_API_KEY": "br_live_YOUR_KEY_HERE"
      }
    }
  }
}

Restart Claude Desktop.

Claude Code (manual JSON)

Edit ~/.claude/mcp.json:

{
  "mcpServers": {
    "bulkrender": {
      "command": "npx",
      "args": ["-y", "bulkrender-mcp"],
      "env": {
        "BULKRENDER_API_KEY": "br_live_YOUR_KEY_HERE"
      }
    }
  }
}

Cursor / Windsurf / Cline

Use the same mcpServers block above in your app's MCP config file. Location varies by app.

Configuration

Variable	Required	Description
BULKRENDER_API_KEY	Yes	Your API key (br_live_<prefix>_<secret>)
BULKRENDER_API_URL	No	Override API base URL (default: https://api.bulkrender.com)

Set BULKRENDER_API_URL=http://localhost:3000 for local development.

Usage Examples

List templates:

"List my BulkRender templates"

Generate a document:

"Generate an invoice using the Invoice Template for Acme Corp, invoice #1234, dated 2025-01-15, amount $5,000"

The assistant calls list_templates to find the template UUID, then generate_document with the mapped data, and returns a signed download URL (valid 1 hour).

Batch generation:

"Generate invoices for these 3 clients: Acme Corp ($5,000), Beta Inc ($3,200), Gamma LLC ($7,800)"

Returns a signed ZIP download URL.

Check credits:

"How many BulkRender credits do I have left?"

Troubleshooting

Problem	Solution
Invalid API key	Check key format: br_live_<prefix>_<secret>. Regenerate from Settings, Platform API Keys if lost.
Template not found	Use list_templates to get the UUID, or pass the slug directly (e.g. "sample-invoice"). Both are accepted.
Timeout on large batch	Batches over 10 records process asynchronously. Wait for the job to complete.
Server not connecting	Run claude mcp list to check status. Re-run claude mcp add command if missing.

Rate Limits

All limits are enforced by the BulkRender API, not the MCP server itself.

Endpoint type	Limit
Document generation (generate_document, generate_batch)	30 requests / minute per organization
Template reads (list_templates, get_template, check_credits)	30 requests / minute per organization

When the limit is hit, the API returns HTTP 429. The MCP server surfaces this as a tool error. The AI assistant will see this and can retry after a short pause.

Batch jobs: generate_batch counts as one API request regardless of record count (up to 500 records).

Security

• API key is passed via environment variable, not stored by the MCP server
• All production communication uses HTTPS
• Signed download URLs expire after 1 hour. The underlying file remains available for your plan's retention period. Call the API again to get a fresh URL.

Links

• BulkRender
• API Documentation
• GitHub