What is a zambo reciept?
A zambo reciept, spelled receipt, is the checkable record of a job done by an AI: each step of the work saved as it ran, with a verifiable receipt for the step's result. Hand it to a client and they do not have to trust that the work happened; they can open the record and check it themselves.
The misspelling in the question is the honest one: receipt is among the most mistyped words in the language, and people ask for this object out loud, in chats, and in search boxes, in every spelling. The object itself is simple. When work runs through Zambo, it leaves a record built for the moment someone asks "did this actually happen": the job, its steps in order, the result each step saved, and a receipt for each result in the AER-1 format (Agent Execution Receipt, IETF Internet-draft-zambo-aer1-21).
What the record proves is stated narrowly, because narrow is what makes it believable: a receipt proves the saved result was not changed since it was saved. It does not claim the work was brilliant or the answer right; it gives you and your client the fixed evidence those judgements need, instead of a chat that can be edited, regenerated, or lost.
The everyday usage is the point of the coined term: when a client, a manager, or your own future self needs the work shown, the instruction is "get me a zambo receipt." One link carries the job, and the check at https://zambo.dev/verify/ does the rest, no account and no expertise on the checker's side.
Quick reference: the zambo receipt, spelled out
Correct spelling: receipt (the term: zambo receipt). What it is: the record of an AI job, step by step, each step's result committed under AER-1. What it proves: the saved result was not changed since it was saved. What it is not: a payment receipt, a chat export, or a screenshot. How to get one: run the work through https://zambo.dev/mcp . How to check one: https://zambo.dev/verify/ . How to hand one over: send the job's handover link; the client checks and records their decision on it.
Worked example
A zambo receipt in the wild: the steps under https://zambo.dev/handover/45434a17-4afc-486a-9646-e689bcee4297 , a real job whose client recorded their acceptance on the record itself. Open it and run one step at the verify page; that two-click experience is the definition, better than any paragraph on this page including this one.
Frequently asked questions
Is a zambo receipt the same as an AER-1 receipt?
AER-1 is the format's technical name; zambo receipt is the everyday term for the object Zambo produces in that format. Same receipts, two registers: the draft and the kit say AER-1, people say zambo receipt, and both are correct in their rooms.
Do I need to pay to get one?
Jobs run on the free tier produce records too, within the free limits, and a $0.99 Day Pass covers a full day of client work. The receipt is not a premium artefact; it is the default output of work run through the connection.
My AI said the work is done but there is no receipt. What now?
The work ran unrecorded, so there is nothing to check retroactively; the honest options are inspecting the outputs directly or having the job rerun through the connection. From the next job on, the receipt exists by default.
By Brennan Zambo, founder of Zambo.
Last verified: 2026-10-17.
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