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Paybond Kit · Proof-gated release

Change the evidence. Watch release flip to refund.

Release or refund based on signed completion evidence. Your rails, your runtime, one signed receipt.

Authorize the action. Verify the outcome.

Start the proof labWatch middleware trace

Proof lab

Travel booking · edit evidence

An AI agent booked M. Nguyen's flight under a signed intent. Confirm or break the completion evidence — release and refund update live.

Simulated — no live payments or tenant data.

Authorize

travel.booker.purchase

budget
$200.00
fare allow-list
economy, premium_economy
passenger
M. Nguyen

Execute

Agent booked

amount
$197.50
confirmation
AA-8JZ3QK
status
awaiting evidence

Verify

Edit fare class or total — the outcome flips without leaving this panel.

Fare class
  • total_cents <= max_spend_cents·19750 ≤ 20000
  • fare_class ∈ allow-list·`economy` ∈ {economy, premium_economy}

Release | Refund

Released $197.50

Settle

Illustrative travel receiptpaybond.agent_receipt_v1
"operation"
"travel.booker.purchase"
"budget_cap"
"$200.00"
"evidence.confirmation"
"AA-8JZ3QK"
"outcome"
"release · $197.50"
signature · offline-verifiable
Start free sandbox

What you just proved

Authorize → execute → verify → settle. Four steps. One signed receipt.

  1. 01 · Authorize

    Bind operation, budget, and completion rule before the tool runs.

  2. 02 · Execute

    Agent runs the paid tool under that authorization.

  3. 03 · Verify

    Submit completion evidence against the signed rule.

  4. 04 · Settle

    Funds release on pass — or refund on fail — Finance can replay.

Next step

Take the same loop into sandbox, or try Kit locally from the CLI.

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