Cerbos VS DynamicDocumentAPI

Cerbos's answer

• Go
• Protobuf
• gRPC
• CEL

DynamicDocumentAPI's answer:

Rendering runs in Rust workers that drive headless Chromium over the DevTools protocol, with MiniJinja for templates. The API and control plane are built with Django and Django REST Framework, with Celery, PostgreSQL, Valkey and NATS JetStream for queues and events, and S3-compatible object storage for files. PDF/A output is checked with veraPDF and e-invoices with the official KoSIT validator. The dashboard and website are built with Next.js. Everything runs on Kubernetes in data centres in Germany.

Cerbos's answer

Cerbos stands out in the crowded authorization landscape due to its innovative approach to managing roles and permissions. Unlike traditional systems that embed authorization logic within an application's core code, Cerbos introduces a standalone, self-hosted, stateless service, transforming intricate coding tasks into simpler configurations. This separation not only streamlines the authorization process but also reduces potential security risks and system bottlenecks.

Being open-source, Cerbos fosters a strong community backing, ensuring its evolution aligns with real-world developer needs. Its adaptability is evident in its support for multiple SDKs, YAML configuration, and dynamic context handling, which cater to a wide range of environments and use-cases. This flexibility is further enhanced by Cerbos Cloud, a premium solution offering advanced policy management tools.

Furthermore, Cerbos emphasizes transparency, allowing both technical and non-technical stakeholders to understand and modify the permissions structure. This democratization of authorization logic management reduces reliance on specialized coding expertise. Additionally, its commitment to robust security features, including audit logging and risk mitigation, ensures that businesses can trust Cerbos to safeguard their authorization processes.

In essence, Cerbos' unique blend of innovation, adaptability, community support, and security focus reshapes the way businesses approach and manage authorization, making it a game-changer in the field.

DynamicDocumentAPI's answer:

It covers the whole path from data to finished document in one API: you design a template in a visual or HTML editor (or send raw HTML, CSS or Markdown), send JSON, and get a PDF or image back. The same service also creates e-invoices (XRechnung, EN 16931, Factur-X / ZUGFeRD) that are validated against the official rules before they are returned, and can embed them in the PDF. Rendering is deterministic: the same template and data always give the same document, laid out by a headless browser, with no AI model generating content. Everything runs in the EU (Germany). It also ships an MCP server, so AI agents like Claude and ChatGPT can render documents directly.

Cerbos's answer

Cerbos' primary audience is best described as forward-thinking engineering leaders at the helm of emerging startups, particularly within the FinTech and Software Development sectors. These leaders typically oversee small to medium-sized teams, with 5-20 engineers, in companies that have a workforce ranging from 0 to 100 employees. Their technological stack prominently features Kubernetes (k8s), indicating a modern and scalable infrastructure.

Financially, these companies are in their early growth stages, having secured funding between 0 to 10 million dollars, primarily in the Seed to Series A range. This suggests that they are in a phase of rapid expansion and are actively seeking solutions that can seamlessly scale with their growth.

The primary objectives of Cerbos’ users revolve around finding a reliable solution to their authorization challenges, ensuring that the chosen solution can be implemented without disruptions, and that it scales effortlessly as the company grows. In essence, the Cerbos champion is a visionary engineering leader, keen on adopting innovative solutions that align with their company's rapid growth trajectory.

DynamicDocumentAPI's answer:

Developers and product teams whose software has to send documents: invoices after a payment, certificates after a course, reports, labels and statements. Typical users are SaaS companies, marketplaces, e-commerce and learning platforms. A second group are businesses in Germany and the EU that need compliant e-invoices (XRechnung, ZUGFeRD) for the German B2B e-invoicing mandate and public-sector buyers. No-code builders use it through Zapier, Make and n8n, and teams building AI agents use the MCP server.

Cerbos's answer

Cerbos, co-founded by Emre and Charith, emerged from a vision to revolutionize the way authorization is approached in modern, cloud-native applications. The duo recognized a persistent challenge in software development: the immense time and effort developers invest in crafting and continually updating custom permissions. This repetitive cycle not only consumes valuable time but also diverts attention from the core essence of product development.

Driven by this realization, Emre and Charith embarked on a mission with Cerbos: to make the implementation of access-control as seamless and painless as possible. Their goal was to eliminate the need for repeatedly writing and rewriting custom permissions implementations. Instead, they envisioned a world where developers could channel their energies and creativity into building outstanding products that resonate with and delight their customers.

DynamicDocumentAPI's answer:

Almost every product eventually needs to produce documents, and most teams end up building their own rendering stack: a headless browser, fonts, page breaks, storage and retries. It works until an invoice splits a table row or a certificate shows the wrong date, and then it becomes a support ticket. We built Dynamic Document API to be that layer for them: templates, rendering and delivery as one service, hosted in Europe, treating pagination, fonts and formatting as engineering problems rather than edge cases. When e-invoicing became mandatory for B2B in Germany, we added validated XRechnung and ZUGFeRD output, and with AI agents producing more paperwork, an MCP server followed.

Cerbos's answer

• Energage
• Envoy
• Utility Warehouse
• Blockchain.com
• The NTWRK
• Salesroom
• A full list: https://cerbos.dev/customers

DynamicDocumentAPI's answer:

Dynamic Document API is a young product. Our users are mostly developers and small SaaS teams, and we don't name customers without their permission.

Cerbos's answer

A person should choose Cerbos over its competitors for several compelling reasons:

Innovative Design: Unlike many competitors, Cerbos separates the traditionally embedded authorization logic from the application's core code. This standalone, stateless service simplifies authorization changes, converting intricate coding tasks into straightforward configurations.

Open-Source Flexibility: Cerbos' open-source nature ensures continuous evolution based on real-world feedback. This community-driven approach ensures that the product remains relevant and adaptable to changing needs.

Transparency and Inclusivity: Cerbos' structure allows a broader range of stakeholders, both technical and non-technical, to understand and modify the permissions structure. This democratizes the authorization process, reducing the dependency on specialized coding expertise.

Robust Security: Cerbos places a strong emphasis on security, offering features like audit logging and risk mitigation. This commitment ensures businesses can trust Cerbos to maintain the integrity of their authorization processes.

Flexibility and Control: Cerbos provides complete control over its deployment, scaling, and monitoring. Unlike solutions that are solely cloud-based or hardcoded, Cerbos strikes a balance between flexibility, control, and security.

Clear Value Proposition: Cerbos offers straightforward pricing and a user-friendly approach, contrasting with competitors that may have complex pricing structures or less intuitive systems.

Community and Support: As an open-source project, Cerbos boasts a strong community backing, ensuring users have access to a wealth of knowledge and support.

In summary, Cerbos' unique blend of innovation, flexibility, transparency, and security makes it a superior choice in the authorization landscape.

DynamicDocumentAPI's answer:

Most document APIs do one thing: convert HTML to PDF, or fill templates. Dynamic Document API does both, adds image templates, PDF merging and validated e-invoices, and offers them through a REST API, SDKs for Node and Python, Zapier, Make, n8n and an MCP server for AI agents. Data is processed and stored in the EU only, files come back as signed links that expire, and storing nothing at all is a supported option. Pricing is predictable: one published credit table, the same core features on every paid plan and a spend cap you control. We also publish a render-time benchmark with its method and raw data, so you can check our speed instead of trusting a claim. The free plan includes 50 renders a month without a credit card.