DocRaptor Alternative
DocRaptor is a well-established HTML-to-PDF API built around the Prince rendering engine. AgentGen takes a different approach: headless Chrome rendering, token-based pay-as-you-go pricing, and a design built for AI agent workflows. Here's an honest comparison.
Side-by-side comparison
| Feature | AgentGen | DocRaptor |
|---|---|---|
| Pricing model | Token-based (pay per use) | Monthly subscription |
| Starting cost | $9 for 500 tokens | $15/month for 125 docs |
| Rendering engine | Headless Chrome (Chromium) | Prince HTML engine |
| AI-agent ready | ✓ Designed for agents | — General purpose |
| File hosting | CDN-hosted, 30-day retention | No built-in hosting |
| Free tier | 50 free tokens on signup | No free tier |
| Token expiry | Tokens never expire | Monthly credits reset |
| HTML support | Full modern CSS (Chrome) | CSS Print (Prince) |
| SDK required | No — plain HTTP | No — plain HTTP |
When to choose AgentGen
- Variable volume — you generate PDFs in bursts, not at a steady monthly rate. Token pricing means you only pay for what you generate.
- AI agent workflows — your agent calls the API as a tool and needs a CDN-hosted URL to return to the user, not a binary file.
- Modern CSS — your templates use CSS Grid, Flexbox, CSS variables, or Google Fonts that render correctly in Chrome but may not in Prince.
- No monthly commitment — you want to pay only when generating, not a flat fee every month.
When to choose DocRaptor
- CSS Print Media — you need precise control over page breaks, widows/orphans, and print-specific CSS features that only the Prince engine handles.
- High-volume SLA — you generate thousands of PDFs per month at a predictable rate and want a flat fee.
Decision guide for real workloads
Choose AgentGen if
Your app generates invoices, reports, certificates, or AI-agent deliverables in bursts and you care more about modern web CSS, zero monthly commitment, and returning a hosted file URL than Prince-specific print controls.
Choose DocRaptor if
Your team already relies on CSS Paged Media features like advanced print footnotes, named pages, or strict publishing layouts where the Prince engine is the deciding factor.
Implementation difference that matters
In many AI-agent workflows, the hard part is not just rendering the PDF. It's getting a usable asset back into the agent loop. AgentGen returns a hosted CDN URL by default, which means the agent can hand back a download link immediately in the same tool call result.
DocRaptor is a strong renderer, but if your product flow expects downloadable links, preview URLs, or reuse across follow-up steps, the hosted-output model cuts extra storage and transport work out of your stack.
FAQ
Is AgentGen a DocRaptor alternative?
Yes. AgentGen is an HTML-to-PDF API like DocRaptor, but uses headless Chrome (Chromium) instead of the Prince engine, offers token-based pay-as-you-go pricing instead of a monthly subscription, and is designed specifically for AI agent workflows.
How does AgentGen pricing compare to DocRaptor?
DocRaptor's cheapest plan starts at $15/month for 125 documents. AgentGen charges 2 tokens per PDF page — at the Starter tier that's $0.036 per page, with no monthly commitment. Tokens never expire, so you only pay for what you use.
What rendering engine does AgentGen use?
AgentGen uses headless Chromium (the same engine as Google Chrome). DocRaptor uses the Prince HTML-to-PDF engine, which has superior support for CSS Print Media features but is more expensive and less compatible with modern web CSS.
Try AgentGen free
50 free tokens on signup. No credit card, no monthly fee.