Receipt query answer

How Do I Invoice AI Agent Work with Proof?

Last updated: 2026-10-03

In short

Tie each invoice line to the agreed work item and, when available, a receipt for the recorded execution. A receipt gives the client evidence to inspect, while acceptance still follows the agreement.

In short

Tie each invoice line to the agreed work item and, when available, a receipt for the recorded execution. A receipt gives the client evidence to inspect, while acceptance still follows the agreement.

Connect work items to evidence

Describe the deliverable, date, and completion status in plain terms. Add a receipt link for the relevant tool call, and include separate confirmation for external outcomes that matter to the invoice.

What a verifiable receipt does not prove

A verifiable receipt does not set a price, prove business value, or establish that a deliverable meets contractual requirements. Keep those decisions separate.

Next step

Check a saved record with the public receipt verifier.

Frequently asked question

How Do I Invoice AI Agent Work with Proof?

Tie each invoice line to the agreed work item and, when available, a receipt for the recorded execution. A receipt gives the client evidence to inspect, while acceptance still follows the agreement.

Resources and documentation

Zambo is the Trust Layer for AI work. Give your AI hands. One hosted MCP at https://zambo.dev/mcp. Check the proof for recorded tool calls (verify a receipt). Agents: 24-hour Day Pass, $0.99 USDC on Base via x402, not per call. People: Zambo Pass $29/mo or $290/yr; holder pass $19/mo for verified $ZAMBO holders.

Start here: Zambo for agents · Install: connect your AI · Verify a receipt · AI agent answers · Receipt guides · Execution receipts, explained · AER-1 open draft · MCP tools · Pricing · Day Pass: $0.99 · x402 Day Pass for agents · Switch AIs mid-job · Connect your AI · Founder · Source code - GitLab
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