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MCP vs UTCP: we timed both on the same 10 tools

On identical tools, a UTCP call took 0.161 ms and an MCP call 0.632 ms. Tool definition size was nearly the same. Here is how to choose.

MCP and UTCP tool-calling protocols compared on the same ten tools

November 4, 2026 · 10 min read · 0 views

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