0Bit Documentation

Stablecoin-native commerce

Plan stablecoin-native commerce with approved assets, networks, confirmation rules, and reports.

Stablecoin-native commerce is not just a crypto payment button. It is a commerce workflow where price display, exact payment instructions, chain/network availability, confirmation state, merchant settlement, support recovery, and ledger reporting all need first-class treatment.

0Base availability is account-gated. Build against capabilities, merchant status, environment mode, and settlement settings instead of assuming that every payment method, asset, network, cadence, or refund path is enabled for every merchant.

0Base product docs and API details

These pages are public product guidance for merchant and platform developers. 0Base endpoint-level API pages are not published for partners yet; use this product documentation to understand the workflow, records, and launch boundaries.

End-to-end picture

This flow is intentionally shown as product infrastructure: Product priced -> Stablecoin option selected -> Payment intent/deposit address -> Network payment -> Confirmation status -> Order and ledger close. The merchant application can make the customer experience simple, but the backend should keep each step visible enough for retries, support, and finance closeout.

Production contract

BoundaryWhat to buildWhy it matters
Stablecoin offerPresent stablecoin payment only when capabilities and merchant settings support it.Prevents unsupported payment attempts.
Payment precisionUse exact amount and asset precision from API fields.Avoids rounding and dust disputes.
Network safetyMake network and address unmistakable.Wrong-chain payments are costly.
Finality stateMap detected/confirming/processing/succeeded clearly.Customers understand why fulfillment may wait.
Merchant accountingRecord settlement asset and ledger outcome.Stablecoin-native does not remove accounting needs.

Status and state handling

StateWhat it meansDeveloper action
Requires paymentCustomer must send the correct amount.Show instructions.
Payment detectedFunds signal exists.Show pending.
ConfirmingNetwork confirmations are accumulating.Keep fulfillment pending.
SucceededTerminal success.Fulfill and reconcile.

Status handling should be strict even when the customer UI is friendly. Store raw 0Base statuses, map them to customer-safe labels at the edge, and keep the merchant order state separate from the payment object state. That separation lets you change customer copy without corrupting reconciliation.

Example implementation record

This is an application-side record shape for stablecoin-native commerce. Keep exact request and response fields aligned with your enabled account contract when 0Base API access is released for your partner account; the point of this record is to keep product, support, and finance joined in your system.

{
  "product_id": "sku_stable_001",
  "payment_intent_id": "pi_live_456",
  "deposit_address_id": "da_live_789",
  "crypto_currency": "USDC",
  "network": "capability_network",
  "amount": "25.00000000",
  "confirmations_required": 3,
  "order_state": "pending_confirmation"
}

Operational scenario

A digital merchant can sell globally to customers who already hold stablecoins, but it still needs payment windows, customer-safe instructions, confirmation handling, and settlement records. 0Base gives that structure without making the merchant build every payment primitive.

In practice, production 0Base integrations make the happy path fast while keeping exceptions predictable: retries return the same object, delayed notifications can be repaired, expired sessions do not become mystery payments, and finance exports can be traced back to the original merchant order.

Before and after

Before 0BaseWith 0Base
Static wallet QR codes handled all orders.Each order has a payment intent or deposit record.
Any stablecoin network looked acceptable.Network options come from capability records.
Confirmed on-chain meant fulfilled in every case.0Base terminal status and merchant policy decide fulfillment.
Accounting assumed stablecoin equals cash.Ledger and settlement reports preserve asset and status.

Evidence to keep

EvidenceWhat to store
Instruction recordAmount, crypto currency, network, address/reference, expiry.
Chain evidencePayment hash where available, confirmations required/received.
Intent evidenceRaw status timeline and customer labels.
Order evidenceSKU, merchant order id, fulfillment decision.
Finance evidenceLedger asset, amount, report period, settlement status.

This evidence is what makes the integration supportable at institutional scale. A developer should not need private operational knowledge to answer basic questions such as what the customer saw, which object owns the state, which event announced the change, and which ledger or report row closed the money movement.

Failure modes and recovery

Failure modeRecovery
Customer sends unsupported tokenDo not mark paid; preserve evidence and route support.
Customer sends correct asset on wrong networkKeep unresolved and follow support policy.
Payment confirms after order expiresApply late-payment policy and create support packet.
Network congestion delays confirmationShow confirming/pending without changing amount terms.

Recovery should be idempotent and explainable. When the system is uncertain, preserve the current raw status, read the latest object state, attach a support reference, and avoid changing fulfillment or finance state until a trusted terminal condition is present.

API adjacency

API areaUse it for
GET /capabilities/payment_methodsStablecoin method availability.
GET /capabilities/networksNetwork and confirmation data.
POST /payment_intents/{intentId}/deposit_addressDeposit instructions.
GET /reports/settlementStablecoin settlement records.

For endpoint-level implementation, use the API reference as the source of truth for fields, enums, authentication, idempotency behavior, pagination, and response examples.

Why this matters for merchants and customers

Stablecoin-native commerce can reduce payment friction for customers who already hold digital dollars, but the checkout still needs exact amount, network, confirmation, failure, and settlement handling.

At scale, the value of 0Base is not only that a payment can be created. The value is that the payment can be explained later: what the customer saw, which account capabilities allowed it, which backend state changed, which notification delivered it, and which ledger or report row closed it.

Worked API path

The example below shows the implementation shape for this page. Use merchant-specific capabilities, account settings, and API responses in production; the ids and values here are illustrative.

curl -X POST https://base-api-sandbox.0bit.app/v1/payment_intents \
  -H "Authorization: Bearer $OBIT_SECRET_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: ord_100045:base:v1" \
  -d '
{
    "amount": "89.00",
    "currency": "EUR",
    "cryptoCurrency": "USDT",
    "clientReference": "ord_100045",
    "settlementCurrency": "USDC",
    "settlementRail": "onchain"
}'

Example response shape:

{
  "intentId": "pi_test_456",
  "status": "requires_payment",
  "amount": "89.00",
  "currency": "EUR",
  "cryptoCurrency": "USDT",
  "clientReference": "ord_100045",
  "settlementCurrency": "USDC",
  "settlementRail": "onchain"
}

Implementation checkpoints:

  • Store your merchant reference before calling 0Base.
  • Attach the returned object id to the same business record.
  • Record the request id, idempotency key, raw status, and environment.
  • Use webhook and report reads to repair delayed or missed state changes.

Data join map

This join map is the reason 0Base is infrastructure rather than a payment button. A merchant can change checkout UX, support tooling, or finance exports without losing the chain from customer action to backend state and settlement evidence.

Operator runbook

SignalCheck firstAction
Customer reports payment not updatingLook up merchant order id, 0Base object id, raw status, and latest webhook delivery.Read current object state before changing fulfillment.
Webhook delivery failedCheck delivery id, event id, attempts, last error, and handler logs.Fix the handler, replay once, and dedupe by event id.
Finance cannot match a rowCompare client reference, intent id, settlement id, report period, and export row.Move the item to reconciliation queue instead of closing by amount/date.
Customer paid but order is still pendingCheck raw intent status, deposit-address status, confirmations, and latest report row.Keep fulfillment pending until terminal success or documented manual review.

The runbook should be available to support and finance teams before launch. A developer integration is not complete if only engineering can explain the state of a customer payment.

Developer checklist

  • Use capabilities to render stablecoin options.
  • Keep amount precision from the API.
  • Display network and expiry prominently.
  • Store chain evidence when available.
  • Use terminal status for fulfillment.
  • Reconcile by intent and ledger ids.

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