Rynko

Document Infrastructure for Developers
Generate pixel-perfect PDFs and Excel files from JSON templates in milliseconds.

Website • Documentation • API Reference • Get Started

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Why Rynko?

Traditional PDF generation is slow and fragile. HTML-to-PDF libraries require headless browsers, take 3-8 seconds per document, and produce inconsistent results.

Rynko is different:

• Sub-second generation — 200-500ms typical (10-15x faster than HTML-to-PDF)
• Native rendering engine — No browser overhead, no HTML parsing
• Yoga Layout — Facebook's Flexbox engine (same as React Native) for pixel-perfect layouts
• Zero XSS surface — JSON-based TextRuns instead of HTML for rich text
• Dual output — PDF and Excel from the same template

Quick Start

REST API

curl -X POST https://api.rynko.dev/api/v1/documents/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "templateId": "invoice-template",
    "format": "pdf",
    "variables": {
      "invoiceNumber": "INV-2026-001",
      "customerName": "Acme Corp",
      "items": [
        { "description": "Consulting", "quantity": 10, "price": 150.00 }
      ],
      "total": 1500.00
    }
  }'

Node.js SDK

npm install @rynko/sdk

import { Rynko } from '@rynko/sdk';

const client = new Rynko({ apiKey: 'YOUR_API_KEY' });

const result = await client.documents.generate({
  templateId: 'invoice-template',
  format: 'pdf',
  variables: {
    invoiceNumber: 'INV-2026-001',
    customerName: 'Acme Corp',
    items: [{ description: 'Consulting', quantity: 10, price: 150.00 }],
    total: 1500.00
  }
});

console.log(result.downloadUrl);

Python SDK

pip install rynko

from rynko import RynkoClient

client = RynkoClient(api_key="YOUR_API_KEY")

result = client.documents.generate(
    template_id="invoice-template",
    format="pdf",
    variables={
        "invoiceNumber": "INV-2026-001",
        "customerName": "Acme Corp",
        "items": [{"description": "Consulting", "quantity": 10, "price": 150.00}],
        "total": 1500.00
    }
)

print(result.download_url)

AI-Native Workflow (MCP)

Connect Claude, Cursor, or any MCP-compatible AI agent directly to Rynko:

{
  "mcpServers": {
    "rynko": {
      "command": "npx",
      "args": ["-y", "@rynko/mcp-server"],
      "env": {
        "RYNKO_USER_TOKEN": "your-personal-access-token"
      }
    }
  }
}

Then just ask: "Create an invoice template for consulting services with VAT"

Features

Feature	Description
28 Component Types	Text, tables, charts, QR codes, barcodes, form fields, and more
8 Chart Types	Bar, line, pie, doughnut, area, radar, polar area, scatter
10 Barcode Formats	Code128, Code39, EAN-13/8, UPC-A/E, ITF-14, PDF417, DataMatrix, QR
9 PDF Form Fields	Text, textarea, checkbox, radio, dropdown, date, signature, button
Hybrid Logic	Server-side JavaScript expressions + native Excel formulas
Visual Designer	Drag-and-drop template builder with live preview
Batch Generation	Generate thousands of documents in parallel
Webhooks	Real-time notifications for document events

Integrations

Platform	Package	Description
Node.js	@rynko/sdk	Official TypeScript SDK
Python	rynko	Official Python SDK
Java	rynko-java	Official Java SDK
MCP Server	@rynko/mcp-server	AI agent integration
Zapier	Rynko for Zapier	No-code automation
Make.com	Rynko for Make	Visual automation
n8n	n8n-nodes-rynko	Workflow automation
Google Sheets	Add-on	Generate documents from spreadsheet data

Pricing

Tier	Documents/Month	Price
Free	50	$0/month
Starter	500	$19/month
Growth	2,500	$49/month
Scale	10,000	$99/month

View full pricing →

Resources

• Documentation: docs.rynko.dev
• API Reference: docs.rynko.dev/api-reference
• Template Schema: docs.rynko.dev/developer-guide/template-schema
• Status Page: status.rynko.dev

LLM Context Files

For AI assistants and code generation tools:

• llms.txt — Compact overview
• llms-full.txt — Comprehensive reference
• llms-templates.txt — Template schema for AI

Security

• TLS 1.3 encryption for all API calls
• Signed URLs with configurable expiration
• GDPR compliant with data removal support
• SOC 2 Type II certification in progress

Support

• Email: support@rynko.dev
• Documentation: docs.rynko.dev
• Status: status.rynko.dev

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_{Built by Rynko — Document Infrastructure for Developers}