Code402 is the product and commercial home. HCRB is its API and tools service. Both are operated by Juana Limited.

For transaction operations and integration teams

Find mismatches.
Keep the evidence.

Find mismatches between order, payment and delivery records. An inspectable exception report from the records you supply.

The synthetic workbench and stateless supplied-record comparison are free to evaluate. No wallet or payment is required.

ORDER → PAYMENT → DELIVERYSupplied-record comparison
01
Bring three recordsOrder terms, payment references and delivery records
02
Inspect exceptionsAmount, currency, recipient, duplicates and missing evidence
03
Keep the reportExport JSON with explicit scope and a safe next action
Synthetic examples are not customer transactions. Comparison is not independent proof of authorization, settlement, delivery or quality.

One problem.
One verifiable starting point.

Evaluate a recurring exception in your existing workflow before considering a paid integration.

3 / Understand the price

Settlement-service billing is not activated for this synthetic evaluation workflow. Separate API checks settle per call in Base L2 USDC / Circle EURC (x402 v2); operators and enterprise workflows purchase instant ck_live_ card quota keys or $99 batch packs via Stripe (Operated by JUANA LIMITED, UK Co. No. 14043409). No fee is charged by this synthetic evaluation workflow. Existing API checks are a separate legacy offer.

Read scope and pricing →

Know what remains unknown.

Comparison is not independent proof of authorization, settlement, delivery or quality. A receipt signature authenticates recorded data under the signer's trust assumptions; it does not establish that the underlying claim is true.

Read the transaction acceptance contract →

Keep your freedom to leave.

Download example inputs and results as JSON. Retain your source records and comparison response in your own systems. Receipt verification remains free.

Download reproducible examples →

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