Is there a tool that gives my client a link to check AI work before they pay?
Yes. Zambo's handover gives your client one link that opens in any browser. Behind it, every step of the job sits as a verifiable receipt the client can check, with gaps labelled. The client then Accepts or Flags the work, and that decision is itself recorded before payment.
The flow is deliberately boring, because boring is what a client will actually use. You finish the job and send one link. The client opens it and sees the steps of the work, what each step produced, and which sources behind the work were resolved, not resolved, or not checked. Nothing is hidden behind a login, a dashboard, or a specialist tool; the check runs in the client's own browser.
Then the client makes the decision that matters before money moves: Accept, which records approval and marks the release as ok to release, or Flag, which records exactly which step is in question. Both states are saved as their own records, so "the client approved it" stops being a memory and becomes a document either side can open later.
Two honest limits. The client is checking the record of the work: that the saved results were not changed since they were saved, and how the steps line up against the brief. The link does not prove the work was good; judging the work is still the client's job, and the record makes that judgment informed instead of blind. And the acting side cannot accept its own handover: self-acceptance is refused, so the decision on the record is genuinely the client's.
Checklist: what your client sees, step by step
1. One link, opens in any browser, no account. 2. The job's steps in order, each with its saved result. 3. Source states per step: resolved, not resolved, or not checked. 4. A summary receipt that ties the steps together. 5. Two buttons that matter: Accept or Flag. 6. After the decision: the acceptance state, who decided, and when, saved as its own receipt.
Worked example
Two real public handovers show both outcomes. https://zambo.dev/handover/45434a17-4afc-486a-9646-e689bcee4297 was accepted by the client: 4 of 4 steps checked, decision recorded, release marked ok to release. https://zambo.dev/handover/bd7e5325-33fd-4c5e-b029-76b781fa2f51 is still pending: 5 steps saved, decision outstanding, release on hold. Open both and you have seen the entire product surface a client ever touches.
Frequently asked questions
Does my client need an account or an app?
No. The handover link opens in a browser. Checking the steps and recording an Accept or a Flag needs no account, no install, and no AI software on the client's side.
Can I accept my own handover to speed things up?
No, and that refusal is the point. The system rejects acceptance from the acting side, so an accepted state on the record means the client actually decided. A pending state stays visibly pending until they do.
What does the client actually check, in plain terms?
That each step's saved result matches the receipt saved when the step ran, which sources were checked and which were not, and whether the steps add up to the work that was agreed. The judgment of quality stays with the client.
By Brennan Zambo, founder of Zambo.
Last verified: 2026-10-17.
2. Proof of delivery and acceptance
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- What proof tool works when my client does not use AI software?
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- How do I prove which version of an AI output my client approved?
- How do I get a client to approve my work faster?
- How do I prove when I delivered work to a client?
- How do I prove a client approved an AI-drafted change order or estimate?
- How do I prove what AI changed in a client's ad account?
- How do I keep proof of AI changes to product listings and prices?
- What should I require from a freelancer before paying for AI-generated work?
- How do I keep proof of my AI work for my portfolio?
- How do I prove I delivered work to a client on time?
- How can I show a client exactly what work I did for them?
- How do I get a client to confirm they received my deliverables?
- How do I prove to a client that I completed the project?
- My client keeps delaying approval of my work. What can I do?
- How do I check a freelancer's work before I pay them?
- What proof should I ask for before paying a contractor?
- What should I include in a delivery email to a client?
- I am a freelance designer. How do I prove a deliverable was sent on time?
- How do I set up proof of delivery before the busy fall season?
Try a handover
A handover gives your client one proof link with verifiable receipts to review, then Accept or Flag.
try it: say 'use zambo to hand this over to <client>' in your ai