AI-drafted NIST 800-53 SAR writeups, control lookup, and artifact analysis — built for 3PAOs, ISSOs, and RMF teams.
Everything included in your trial
Three steps to your first AI-drafted writeup.
Search any NIST 800-53 control and get the objective, plain-English translation, and test procedures in seconds.
AI drafts a defensible SAR narrative — every claim tagged with the NIST source and evidence item it came from.
Upload an artifact and instantly see whether it's sufficient, what's missing, and what to request next.
Why pay $100K/yr for legacy GRC suites? CoAssessor gives assessors the same output — AI-drafted, citation-backed SAR narratives — for $19.99/month.
30-day free trial, then $19.99/month. Cancel anytime.
No credit card required to start your trial
Everything you need to know before starting
CoAssessor runs on hardened cloud infrastructure with encryption at rest and in transit. Access is controlled per-user with role-based permissions, and every action is logged in a full audit trail. Your data is never shared with third parties or used to train models.
Yes. CoAssessor includes the complete NIST SP 800-53 Rev 5 control catalog — every family, every control, every enhancement — with plain-language translations, testing procedures, and FedRAMP mapping.
CoAssessor drafts the narrative — the assessor reviews and owns the final writeup. Every edit is tracked in a full audit trail. The AI accelerates the first draft; human judgment ensures the final quality. This is an assistive workflow, not a black box.
ISSOs, security control assessors, 3PAO teams, GRC consultants, and anyone working on FedRAMP, RMF, or FISMA packages. If you write 800-53 narratives or review control evidence, CoAssessor is built for you.
Founding members get a 30-day free trial with no credit card required. After the trial, the Professional plan is $19.99/month. Cancel anytime, self-service. Your work is never deleted.
CoAssessor complements — not replaces — your existing GRC stack. If you already have eMASS or Xacta for authorization tracking, CoAssessor fills the gaps those tools don't: AI-drafted writeups, artifact analysis, and control interpretation in plain language.
Join the founding assessors building defensible, citation-backed writeups with CoAssessor.