Operating pillars
4
Capability layers rendered with explicit operational behavior.
Platform Capability
Transfers Capability Built For Failure Paths
Create transfer flows that remain inspectable through retries, provider callbacks, reversals, settlement delays, and support escalation.
- 01Idempotent writes
- 02Settlement states
- 03Support-ready evidence
Client apps
01API requests enter with tenant scope.
API edge
02Contracts, auth, and idempotency checked first.
Policy engine
03Limits, risk, and routing rules decide path.
Ledger core
04Minor-unit entries become the financial source.
Provider routes
05Rail selection and failover stay explicit.
Webhook runtime
06Signed events leave with retry history.
Runtime boundary
Tenant configattached
Rate policyattached
Auth scopeattached
Evidence trailattached
Control result
one map
Payments, cards, accounts, ledgers, and webhooks inherit one operating model.
Visual center
Control plane
Tenant-aware orchestration with explicit states, traces, and policy boundaries.
Runtime model
Deterministic
Replay-safe money and identity workflows under retry pressure.
Control boundary
Tenant-scoped
Isolation across authorization, data access, and operator actions.
Operating model
A transfer stays legible while banks, providers, and callbacks behave out of order.
Entrypoint
POST /transfers
01Request
Create transfer
Client intent enters with destination, amount, currency, and idempotency key.
02Control
Validate tenant policy
Limits, authorization, and corridor constraints resolve before money moves.
03Ledger
Reserve and post
Ledger-safe mutation boundaries protect balances through retries.
04Event
Deliver transfer status
Callbacks and webhooks carry attempt history and signature posture.
05Review
Reconcile outcome
Provider result, settlement status, and support evidence stay attached.
Events emitted
transfer.created
transfer.posted
transfer.failed
transfer.settled
Evidence retained
transfer_id
idempotency_key
tenant
provider_reference
callback_attempts
Failure path proof
Transfer uncertainty becomes explicit state.
Retries, late callbacks, reversals, and settlement delays are treated as normal operating paths, not support mysteries.
01
Duplicate callback
Incident
A provider sends the same success callback twice after a timeout.
Zentra path
Signature, idempotency, and transfer state resolve to one ledger-safe mutation.
Evidence
Callback attempts, provider reference, transfer state, and ledger entry are retained.
02
Late failure
Incident
A transfer appears posted before the provider later sends a failure signal.
Zentra path
The transfer moves through review and reversal state without losing the original route.
Evidence
Original request, route, policy decision, reversal entry, and operator notes stay attached.
Lifecycle proof
From API request to operational evidence.
This page makes the runtime visible: POST /transfers, the state path, emitted events, and evidence a team can inspect when the happy path breaks.
API request
liveawait zentra.runtime.intents.create({
intent_id: "intent_042",
scope: "workspace_scope",
money_model: "minor_units + ledger_currency",
primitives: ["policy", "ledger", "events"]
})
intent accepted
workspace scope resolved
runtime trace attached
Runtime state machine
01Accept intentruntime contractaccepted
02Resolve controlsscope + policycontrolled
03Post ledger stateminor-unit entriesledgered
04Select routecorridor contextrouted
05Sync eventssigned streamsynchronized
06Seal evidenceactor + scope + timeevidenced
Ledger entries
debitcustomer_balance-125000 mu
creditreserved_balance+125000 mu
debitreserved_balance-125000 mu
creditsettlement_account+125000 mu
Audit evidence
actorsvc_runtime
scopeworkspace_scope
policylimit_check.passed
signatureverified
Capability model
Operational building blocks, not vague feature claims.
Each pillar below maps product capability to runtime behavior teams can reason about before launch.
01
Idempotent initiation
Protect transfer creation from duplicate effects when clients, services, or rails retry.
02
Corridor-aware routing
Keep rail selection, fallback decisions, and regional constraints visible to operators.
03
Settlement state clarity
Represent pending, posted, failed, reversed, and settled outcomes through explicit states.
04
Support-ready evidence
Attach actor, tenant, route, policy, and callback context to each transfer storyline.
Visual center
Control plane
Tenant-aware orchestration with explicit states, traces, and policy boundaries.
- Keep idempotent initiation deterministic under retries, delays, and asynchronous callbacks.
- Expose state transitions and error semantics clearly enough for operators and integrators to act.
- Capture audit events with tenant and actor attribution for regulated review workflows.
API to product
The integration should create visible state.
A buyer should see the first call, the system response, the webhook behavior, and the ledger/audit consequence without leaving the product page.
create transfer
await zentra.transfers.create({
amount_minor: 125000,
currency: "ledger_currency",
destination: "destination_account",
idempotency_key: "transfer_key_042"
})System response
status
processing
event
transfer.created
evidence
transfer_id
entrypoint
POST /transfers
The first integration proof should show POST /transfers, emitted events, retained evidence, and visible product state.
Webhook replay
01timeoutevent transfer.createdretained
02signature verifiedevent transfer.createdretrying
03deliveredevent transfer.createdresolved
Result: one ledger-safe state transition
Delivery state remains visible without creating duplicate financial state.
Ledger flow
account
Customer
-125000 mu
account
Reserved
+125000 mu
account
Settlement
+125000 mu
account
Merchant
+125000 mu
account
Payout
closed
Operational proof
Evidence that the capability behaves correctly when production gets noisy.
The proof points below are written to be checked by operators, solution engineers, and compliance teams, not just admired in a brand presentation.
Transfer state remains legible when provider callbacks arrive late, duplicate, or out of order.
Retry behavior is designed around idempotency keys, signed events, and ledger-safe mutation boundaries.
Support and compliance teams can inspect one evidence trail instead of reconstructing money movement from fragments.
Trust layer
Audit evidence travels with the capability.
Every primitive page needs proof that state, actor, tenant, signature, and policy context remain reviewable after the happy path breaks.
Trust evidence
The proof stays attached to the runtime state.
actorsvc_runtime
scopeworkspace_scope
timestamp2026-04-26T14:12:09Z
policylimit_check.passed
intentintent_042
signatureverified
ledgerentry_042
statusaudit_ready