Skip to content
Joe Simo

Blog

Writing from the work.

Notes about product bugs, interface work, systems thinking, and the real traces behind shipped projects.

Message from Ido Pesok confirming the v0 billing issue cause was identified and should be fixed

Responsible disclosure

The time I found a v0 API billing bug

I found successful v0 API calls through a custom MCP integration that were not showing up in my account billing. Instead of posting it publicly, I recorded proof, wrote a technical report, and sent it directly to Vercel.

Read post