Free
Browse the encyclopedia. Try the assessment flow on three vendors per month.
$0forever
- Vendors trackedBrowse-only
- Refresh cadence—
- Ad-hoc assessments / mo3 samples
- Seats1
- Email alerts on change
- Mantleline Standard DOCX
- SupportCommunity
Pricing
Pay what an assessment costs. Keep the rest.
The encyclopedia is free to browse. Paid tiers buy refresh cadence and a per-month assessment budget — priced from the Anthropic bill, not the market rate.
Starter
One practitioner. Fifteen vendors. Alerts before procurement notices.
$29per month
- Vendors tracked15
- Refresh cadenceMonthly
- Ad-hoc assessments / mo10
- Seats1
- Email alerts on change
- Mantleline Standard DOCX
- SupportEmail · 48h
Team
Five reviewers, one queue. SSO + audit log + DOCX export for the team that owns AI vendor risk.
$499per month
- Vendors tracked100
- Refresh cadenceMonthly
- Ad-hoc assessments / mo50
- Seats5 included · +$39/seat
- Email alerts on change
- Mantleline Standard DOCX
- Audit log
- SSO
- SupportEmail · 24h
Enterprise
Your whole vendor surface. Dedicated support, custom branding, SAML, BAA — whatever the auditor wants.
Request more info
- Vendors trackedUnlimited
- Refresh cadenceWeekly
- Ad-hoc assessments / moUnlimited
- SeatsCustom
- Email alerts on change
- Mantleline Standard DOCX
- Audit log
- SAML SSO
- BAA + custom branding
- SupportDedicated
Where your money goes
Not investor margins. Deeper research.
The encyclopedia stays free because the public deserves grounded AI-vendor information — not gated, not paywalled, not parceled out by the people selling the vendors. That part of Mantleline is a public good and will stay one.
Paid tiers fund the work the free surface can’t carry: refresh cadence on the vendors you actually depend on, vendor officiation when you need claims verified by the source, and the smart tools that turn the catalog into a governance instrument instead of a list. None of that is cheap to build right; we’d rather charge for the parts that take real work than mark up the parts that don’t.
No private equity, no growth-at-all-costs runway, no plan to charge $400/seat for a wrapper. The Mantleline pricing is sized to keep the lights on, fund the next layer of depth, and leave the encyclopedia open.
For vendors
Are you a vendor? Claim your profile — free.
Verify ownership of your Mantleline profile to correct facts, add citations, and earn the “Verified by vendor” badge.