AI & Agents
Prefactor
Last updated 2026-07-28 · benchmark checked 2026-08-09 · unchanged since 2026-08-08 — deterministic & reproducible
AI agent observability, evaluation, and enforcement platform with usage-based pricing.
Is Prefactor production-ready?
Legit.Show scores Prefactor 91 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Prefactor (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Security; its weakest is Performance. Every frame it averages is published with its evidence on the Legit.Show listing.
The 7 Frames
- Performance — 57/100
- Accessibility — 94/100
- Security — 100/100
- Privacy — 100/100
- Reliability — 100/100
- Standards — 89/100
- Discoverability — 100/100
What we measured
- Security headers present: CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 245 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.
- Discoverable: structured data, sitemap, OpenGraph image, canonical URL.
Who built it
Ethan Lee (@ethan_leee9113)
Who it's for
Developers · Product managers · AI security & governance teams · Enterprises running agents · Founders building AI applications
Pricing
Dev: Free (25k spans/month). Scaleup: $250/month or $9,600/year (first 100k spans, then $2.50 per 1k spans up to 4M/month). Enterprise: 4M+ spans/month with custom rates and step-down pricing.
Visit Prefactor → · Alternatives to Prefactor → · How this was measured →