Guides

Each guide here is one task, start to finish, with a complete program you can copy into a file and run. They assume you have an API key, or that you are happy to start on the keyless trial. Nothing is a fragment: every script builds a payload, calls the API, handles the error case, and does something real with the file that comes back.

If you have never rendered anything, read the quickstart first — it is three minutes and one curl command. Come back here when you want the version that runs in your own codebase.

The guides

In your codebase

A complete program you can paste into a file and run. No SDK, no dependencies.

• Node Generate a PDF invoice from JSON in Node A complete dependency-free Node 22 script that renders the invoice template to PDF, handles validation errors, saves the file, and shows the cache hit.
• Python Generate a PDF invoice from JSON in Python A complete Python 3.9 script using only urllib that renders an invoice PDF, handles validation errors, saves the file, and shows the cache hit.

In your agent

Hand a model the render tool and let it read the template contract for itself.

• Claude Code Give Claude Code a PDF tool Connect the Galley MCP server to Claude Code in one command, render keyless, then add a key and share the config with your team.
• OpenAI Agents Give an OpenAI Agents SDK agent a PDF tool A complete Python agent that renders PDFs through the Galley MCP server, plus a plain function-tool version that calls the REST API directly.
• LangGraph Give a LangGraph agent a PDF tool A complete LangGraph agent with a render_document tool over the REST API, wired into a ReAct agent and a StateGraph that carries the signed URL.

In your automation

One HTTP step in a workflow you already have, field by field.

• n8n Add a PDF step to an n8n workflow Configure n8n's HTTP Request node to render a PDF with Galley, map fields from the previous node, download the file and attach it to an email.
• Zapier Add a PDF step to a Zap Configure Webhooks by Zapier to render a PDF with Galley, map trigger fields, and build a nested line_items array with Code by Zapier.

Migrating

What it costs to keep running your own browser, and how to stop.

• Puppeteer HTML to PDF without Puppeteer What running headless Chromium yourself costs, when it is still right, and how to move an HTML string or Handlebars template to one API call.

What these assume

• The base URL is https://api.galleyrender.com and your key goes in Authorization: Bearer glr_sk_….
• The starter library — invoice, quote, receipt, certificate, og-card, report-table, shipping-label and fifteen more — is already on your account, including a trial account. You do not have to create a template to follow any of these.
• Signed URLs expire in an hour. The stored object does not; GET /v1/renders/:id hands back a fresh URL.

What next

• Quickstart — your first render, in one request.
• Template gallery — the twenty-two starter templates and their schemas.
• Render API reference — every field on the request and the response.