doxx.net, a private networking platform built for people and their AI agents, has raised $38m in Series A funding and opened its Agentic Defined Networking (ADN) platform to the public in beta, betting that autonomous agents need infrastructure their users can actually control.

Andreessen Horowitz led the round, joined by Animo Ventures and Focal.vc. As part of the deal, Andreessen Horowitz partner Joel De La Garza will take a seat on the doxx.net board.

The timing reflects a growing exposure. AI agents now routinely browse websites, reach services, communicate and act for the people who deploy them, often while holding their user’s credentials, data and permissions. That leaves them open to spoofed login pages, malware-laden sites and other hostile destinations.

The ADN platform places agents inside a defined connectivity environment with threat protection at the DNS layer, stopping both known and newly emerging malicious sites before a connection is made. During its closed beta, which began in December 2025, the company says it stopped upwards of 38 million threats.

Under the platform, agents are treated much like human users. Each receives its own network identity, private links to the people it works for and to other agents, and access to a complete network API with native MCP support, allowing it to construct the network it operates on. The company argues no rival network handles people and agents as equals on infrastructure wholly owned by a single provider.

net offers users what it describes as a parallel, sovereign internet, complete with a dedicated DNS root, its own IP space, an encrypted mesh and agent-led networking.

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