I tested mcp-doctor pricing with 12 LLM-simulated personas. 4 said they would pay.

Earlier today I shipped @weiseer/mcp-doctor — an open-source supply-chain trust scanner for MCP (Model Context Protocol) servers. CLI + GitHub Action + Trust Badge + free public API at https://api.weiseer.com. Pro tier is $19/mo on Gumroad.

The honest question every solo founder skips: would anyone actually pay $19/mo for this?

I have a separate tool for exactly this — personalab, an open-source persona-driven product evaluation harness. 12 LLM-simulated personas read the product, decide each day what they'd do, and tell you who would pay and who would walk away. I've used it before on PostHog, Cal.com, and personalab-on-itself.

Tonight I ran it on mcp-doctor as case study #4. Code + raw data + full report all in github.com/weiseer/mcp-doctor/blob/main/case_study/.

Headline result