Open-Sourcing Our Privacy Proxy CLI

Introducing pvcli, our open-source CLI tool for debugging privacy protocols like Oblivious HTTP. Simplify tests, reduce errors, and speed up development.

martes, 28 de julio de 2026 • 3 min read • Q2BSTUDIO Team

Depuración sencilla de OHTTP con pvcli

The growing demand for privacy in digital communications has led to the development of protocols like Oblivious HTTP (OHTTP), designed to ensure that no one can simultaneously know who makes a request and what they are requesting. However, implementing and debugging such systems is extremely complex: it involves multiple parties (client, relay, gateway, and origin), binary encoding, and a series of steps that must be executed precisely. Cloudflare, aware of this difficulty, has recently open-sourced its CLI tool pvcli (privacy client), a solution that unifies the entire debugging process for privacy protocols like OHTTP, CONNECT proxying, and MASQUE, with upcoming support for Privacy Pass. This initiative not only makes developers' lives easier but also fosters a more secure and transparent ecosystem.

The pvcli tool, released under the Apache-2.0 license, is inspired by the familiarity of curl, reducing the learning curve. With a single command, it is possible to execute a full OHTTP request, specifying the relay, gateway, and target, and obtain detailed logs of each stage. This eliminates the need to manually parse binary strings, consult multiple RFCs, and write ad hoc scripts. For engineering teams, this means significant time savings and a reduction in human error, allowing them to focus on business logic rather than protocol implementation details.

From a business perspective, having tools like pvcli accelerates the development of products that require privacy by design. Companies operating proxy services, VPNs, or applications with sensitive data can greatly benefit. At Q2BSTUDIO, as a software development and technology company, we have observed that the complexity of privacy protocols is a recurring obstacle for our clients. That is why we offer custom software development that integrates these functionalities robustly, including customization of CLI clients for specific use cases.

Cybersecurity is another fundamental pillar in this context. Debugging protocols like OHTTP requires deep knowledge of encryption and authentication. Our cybersecurity team performs penetration testing and audits to ensure implementations are free of vulnerabilities. Additionally, artificial intelligence and AI agents are beginning to play a crucial role in automating anomaly detection in these flows, improving incident response. At Q2BSTUDIO, we develop solutions that combine AI with privacy protocols, such as secure chatbots or encrypted traffic analysis systems.

Cloud scalability is another key factor. Many OHTTP implementations are deployed on cloud infrastructures like AWS or Azure. We offer cloud AWS/Azure services for secure and efficient deployments, as well as Business Intelligence solutions with Power BI to monitor the performance of these systems in real time. The combination of these technologies allows companies not only to protect user privacy but also to gain valuable insights into how their services operate without compromising security.

In summary, Cloudflare's public release of pvcli marks a milestone in the accessibility of privacy protocols. However, the successful adoption of these technologies requires expert guidance. At Q2BSTUDIO, we are ready to help organizations integrate OHTTP and other protocols into their systems, whether through custom software development, cybersecurity consulting, cloud implementations, or AI solutions. Privacy does not have to be a headache; with the right tools and the right technology partner, it becomes a competitive advantage.

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