MCP & Integrations

Agent Client Protocol

Last updated 2026-08-20 · benchmark measured 2026-08-20 — deterministic & reproducible

A standard protocol for communication between code editors and coding agents.

Is Agent Client Protocol production-ready?

Legit.Show scores Agent Client Protocol 77 out of 100 — the simple average of its 6 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Agent Client Protocol (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Reliability; its weakest is Privacy. 6 of the seven frames returned a score; Accessibility was not measurable on this service and is recorded as null — not as zero. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — 80/100
• Accessibility — not measurable on this service (null — not scored as 0)
• Security — 80/100
• Privacy — 25/100
• Reliability — 100/100
• Standards — 75/100
• Discoverability — 100/100

What we measured

• Security headers present: CSP, HSTS, X-Frame-Options.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 233 ms to first byte.
• Returns a proper 404 for unknown routes.
• 3 of 3 sampled routes reachable.
• No privacy policy found.
• Sets cookies / loads scripts with no consent prompt.
• Discoverable: structured data, sitemap, OpenGraph image, canonical URL.

Who it's for

Code editors · IDEs · Coding agents · Developers · AI tool creators

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