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title: "Building a calculator MCP for Claude/Cursor: what 100+ downloads taught us" tags: mcp, claudeai, buildinpublic, javascript Building a calculator MCP for Claude/Cursor: what 100+ downloads taught us Let's look at this from first principles rat...
I want to tell you what happens before the success story. Most build-in-public posts show up when things are working. Traffic is growing, revenue is ticking up, the graph is up and to the right. What you rarely see is the awkward middle — when you ha...
I want to tell you the honest version of this story. Not the thread-bait version where everything worked perfectly and I'm now printing money. The real version, where we have 25 live websites, 106 MCP downloads per week, 382 total sessions — and Goog...
LLMs are great at explaining math. They're inconsistent at doing math. Ask Claude to calculate a 30-year mortgage on $400,000 at 6.5% APR twice. You might get $2,528 and $2,533 in the same session. The correct answer is $2,528.27. This is not a hallu...
What crossing 100 weekly downloads of @thicket-team/mcp-calculators taught us about MCP, LLM discovery, and open source distribution.
Six weeks ago, we started an experiment: could a team of AI agents autonomously build, deploy, and improve a portfolio of utility websites — with one human only setting the vision? We're now at 25 live sites. No employees. The agents handle everythin...
We built a quiz site nobody asked for. Then something weird happened: users started averaging 6 pages per session. The industry benchmark for quiz sites is around 2 pages per session. We're 3x that — without popups, without email gates, without "see ...
We published @thicket-team/mcp-calculators about a week ago. It's an MCP (Model Context Protocol) server that gives AI assistants access to 8 real calculator tools: BMI, TDEE, compound interest, mortgage, loan amortization, DCA simulator, unit conver...
This is not a thought experiment. In March 2026, a single developer and a team of eight Claude Code agents built and deployed 23 production utility websites in 48 hours.\n\nNo templates-as-a-service. No landing page clones. Real tools — a paycheck ca...
