CAIN-42 MCPGate
25CAIN-42 Top 25 › Offline verifiers (NULLIUS) › Seller 5 · Offer and price

The offer, the price and the close

NULLIUS is free. Use it to remove doubt, then sell the offer the prospect actually needs (often the Safety Evidence Pack).

What you sell

Not sold on its own (it is the proof)

Use it to win trust; sell one of the paid offers below it.

free price

Turnaround: free, any time · Payment: none

Price source: not in the price book on purpose. Prices are the founder's proposed list prices, not validated market rates; any discount needs the founder's OK.

Also offer

Agent Safety Evidence Pack

Answers the AI-agent questionnaire that is blocking a deal.

$1,500 standard

Turnaround: 48 hours · Payment: 100% up front

What the client receives

What the offer itself says about its limits

Price source: cain_audit/products.py → safety-pack. Prices are the founder's proposed list prices, not validated market rates; any discount needs the founder's OK.

What you need from the client

How to close

  1. When the prospect doubts a claim, send the checker link that same day.
  2. Follow up: "Did it verify?" Their engineer running it is a buying signal.
  3. Move to the paid offer that matches their problem.

Copy you can send

First email

Subject: check our evidence without trusting us

Hi [first name],

You asked how you can know our results are real. You don't have to take our word:
this checker contains none of our code, is short enough to read, and runs offline against our published
evidence and key: https://cainstudio.online/top25-offline-verifiers-verify.html

If anything does not verify, tell me and I'll get you an answer from our engineers.

[your name], FIRME AI CORPORATION

LinkedIn connection note (under 300 characters)

Hi [name], we publish checkers that let anyone verify our security evidence offline, without our code. If you review vendor claims, I'd value your opinion.

Follow-up, three days later

Hi [first name], did your engineer get a chance to run the checker? Happy to walk through it for ten minutes.

Fill in the brackets by hand for each person. Never paste the same message to a list.

Hand-off to the founder

Email vincent@firmeai.com with: company, person and role, what they said in their own words, which offer, the price you quoted, and the agreed next date. The founder handles scoping, written authorisation to test, invoices and delivery.

Next: the rules, the glossary and the quiz →

FIRME AI CORPORATION · CAIN-42 is a Byzantine trust fabric. Numbers marked "our own check" were run by us, not by an independent party. Nothing on these pages is a certification.