Legit.Show measured Mason AI's Security frame at 45/100. Security headers present: HSTS. Served over HTTPS with a valid certificate.

How does Legit.Show measure Mason AI?

Legit.Show scores seven frames — Performance, Accessibility, Security, Privacy, Reliability, Standards and Discoverability — deterministically from the public surface (URL, HTTP headers, real Lighthouse), with no LLM in the scoring path. See legit.show/methodology.

AI & Agents

Mason AI

Last updated 2026-08-20 · benchmark measured 2026-09-25 — deterministic & reproducible

Mason AI is a plan review tool that drafts code-cited comment letters for permit sets.

79/100

7/7 frames

Top 47% of 14,138 measured

Legit Benchmark — the simple average of 7 measured frames. Frames we could not measure are left out of the average, never counted as zero. Every frame is shown below with its evidence.

Checked 2026-09-25 · scores move as sites change

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To cite this score: legit.show/s/withmason-ai/2026-09-25. That address never changes; this page moves with every re-measure.

Legit.Show scored Mason AI 79/100 on 2026-09-25, measured across all 7 frames from its public surface. legit.show/s/withmason-ai/2026-09-25

Is Mason AI production-ready?

Legit.Show scores Mason AI 79 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Mason AI (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Accessibility; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

Performance — 72/100
Accessibility — 100/100
Security — 45/100
How this compares across the catalogue: The Web Security Baseline
Privacy — 45/100
How this compares across the catalogue: The Privacy Gap
Reliability — 100/100
Standards — 92/100
Discoverability — 100/100

What we measured

Security headers present: HSTS.
No Content-Security-Policy.
Served over HTTPS with a valid certificate.
Real Lighthouse performance run — 390 ms to first byte.
Returns a proper 404 for unknown routes.
3 of 3 sampled routes reachable.
Has a reachable privacy policy.
Sets cookies / loads scripts with no consent prompt.

Who it's for

Plan review teams · Municipal reviewers · Architectural firms · Building departments · Residential project reviewers

Pricing

Free trial (up to 4 plans/month, no card required); Paid plans month-to-month with 30-day money-back guarantee; Enterprise custom pricing

Sources and updates

Description: Taken from withmason.ai's own website on 2026-08-20.
Operator: Mason AI, as named in withmason.ai's terms, privacy page or footer.
Benchmark: Measured by Legit.Show from the live site, the way any visitor sees it — with no access to its code or accounts. Same method for every product, and no AI decides the score. Last checked 2026-09-25.

Put together from public information, without Mason AI's involvement. If anything here is wrong, tell us and a person will check it.

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