Anvil PDF Generation API vs RenderKit
Anvil PDF Generation API
useanvil.comRenderKit
renderkit.techSide by side
| Figure | Anvil PDF Generation API | RenderKit |
|---|---|---|
| Price from | $99/mo | $9/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | — |
| API | Yes | Yes |
| Plans published | 5 | 5 |
| Spec score · HTML to PDF APIs | 8.7 (#2) | 7.5 (#29) |
| Compliance | Anvil states it is SOC 2 Type II, GDPR/DPA, and HIPAA compliant and maintains Business Associate Agreements. | The Enterprise plan lists SOC 2 as on the roadmap. |
| Integrations | Zapier | The included MCP server exposes the three primitives as tools and the site names Claude Desktop, Claude Code, Cursor, and Windsurf as compatible clients. |
| Intended users | The product is presented as an API for developers and agents, and the pricing page describes the AI Pack for technical teams working with high PDF volumes. | The product describes itself as built for developers and AI agents. |
| SDKs | Anvil lists PDF Generation SDKs for C#/.NET, JavaScript, Python, and TypeScript; Go, Java, PHP, and Ruby are marked coming soon. | The documentation lists Node.js and Python SDKs. |
| Support | Standard support is available by email at [email protected], while the pricing page lists priority support for Enterprise. | Free includes community support, Hobby includes email support, and Business includes priority support; the FAQ says the founder answers other questions by email within a day. |
Plans
Anvil PDF Generation API
- FreeFree
- AI Pack$99 a month
- Product Pack$425 a month
- EnterprisePriced on request
- PDF fill / generation over API$0.10, paid once
RenderKit
- FreeFree
- Hobby$9 a month
- Growth$29 a month
- Business$79 a month
- EnterprisePriced on request
In their own words
Anvil PDF Generation API
Anvil PDF Generation API creates PDFs on demand from HTML and CSS or Markdown. For HTML, it supports full CSS, custom TTF fonts, page dimensions and margins, headers and footers, page numbers, and fillable forms. Markdown conversion applies a default theme, and callers can provide CSS of their own. The API can also generate variable-length documents and merge data into PDFs. Anvil lists SDKs for C#/.NET, JavaScript, Python, and TypeScript; Go, Java, PHP, and Ruby are marked as coming soon. A Zapier integration can automate paperwork workflows, including filling a PDF or starting or pre-filling a Workflow. It is a cloud service with API and web access, email support, and listed SOC 2 and HIPAA compliance. Test mode is free and unlimited on every plan, though test documents are watermarked and use demo signatures. API PDF fill or generation costs $0.10 per use; enabling metered usage with a valid credit card provides 2,500 starter credits. The Free plan is free and UI-only; API key access requires a credit card or upgrade. Custom fonts must be TTF; OTF and WOFF are not supported.
RenderKit
RenderKit has no write-up on Specifiction yet; its figures are above.