Martin Havel

Fintech background — Apple Pay at Equa Bank. Independent, shipping small SaaS and MCP servers. Anthropic-certified Claude API dev linkedin.com/in/martinhavel

Prague, Czechia Joined on Apr 16, 2026 https://martinhavel.cz

Martin Havel

Jun 10

Your MCP Server Passes Every Test — and Claude Still Rejects the Tool

#mcp #testing #typescript #ai

6 min read

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Martin Havel

Jun 1

I built a free, browser-only European payment QR generator (and an MCP server)

#showdev #mcp #javascript #opensource

3 min read

Martin Havel

Apr 16

Building MCP servers for a country that isn't in the dataset (Czech gov APIs)

#showdev #mcp #ai #opensource

6 min read

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Martin Havel

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Your MCP Server Passes Every Test — and Claude Still Rejects the Tool

Want to connect with Martin Havel?

I built a free, browser-only European payment QR generator (and an MCP server)

Building MCP servers for a country that isn't in the dataset (Czech gov APIs)