Wintellex Developers

Build financial workflows with intelligent infrastructure.

Developer tools for connecting payment records, invoices, clients, treasury workflows, settlement data, and operational finance systems.

Request API Access 
POST /v1/payments
{
  "client": "Starlite Realty Group",
  "amount": "25000.00",
  "currency": "USD",
  "workflow": "invoice_settlement",
  "status": "pending_review"
}
Developer working on financial infrastructure Engineering team collaborating Developer building with Wintellex APIs
Platform Capabilities

Everything you need to build at scale.

The Wintellex API gives engineering teams a single surface for payments, treasury, compliance, and settlement — with the observability tools to ship with confidence.

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RESTful API

Predictable, resource-oriented endpoints with consistent response shapes. JSON throughout, versioned from day one, and fully documented with interactive examples.

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Webhooks & Events

Subscribe to payment lifecycle events, settlement confirmations, treasury movements, and compliance triggers. Retry logic and delivery guarantees built in.

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Sandbox Environment

A fully isolated test environment mirroring production behaviour. Simulate edge cases, test failure paths, and validate integrations before going live.

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API Key & OAuth 2.0

Flexible authentication supporting both server-to-server API keys and delegated OAuth flows for user-facing integrations. Scoped permissions at every level.

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Real-Time Observability

Live request logs, latency dashboards, error rate tracking, and alerting — accessible directly from the developer console or via your own monitoring stack.

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Idempotent Requests

Safe retries on every mutating endpoint via idempotency keys. Build resilient payment flows without worrying about duplicate transactions.

API Reference

Core endpoints, production-ready.

The Wintellex API covers the full lifecycle — from initiating payments and managing treasury positions to tracking settlement status and running compliance checks.

POST /v1/payments Initiate payment
GET /v1/payments/{id} Retrieve status
POST /v1/treasury/transfer Move funds
GET /v1/treasury/balances Live balances
POST /v1/settlement/route Route settlement
GET /v1/compliance/check Compliance status
PATCH /v1/workflows/{id} Update workflow
POST /v1/invoices Create invoice
SDKs & Libraries

Native libraries for every stack.

Official SDKs handle authentication, retries, pagination, and error normalisation out of the box — so your team ships integration logic, not boilerplate.

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JavaScript / Node

npm · TypeScript-first

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Python

pip · async support

☕

Java

Maven · Spring ready

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Go

go get · idiomatic

Getting Started

From API key to live transaction in four steps.

Step 01

Request Access

Submit your use case to our developer team. Sandbox credentials are typically provisioned within one business day.

Step 02

Explore the Sandbox

Use the isolated test environment to model your payment and treasury flows, trigger webhook events, and validate edge cases risk-free.

Step 03

Integrate & Test

Connect your systems using our RESTful API or native SDK. Run your integration against the full compliance and settlement stack in sandbox.

Step 04

Go Live

After review, production keys are issued and your workflows go live — backed by 99.99% uptime SLAs and dedicated infrastructure support.

Start building with Wintellex.

Request sandbox access or talk to our developer team about your integration requirements.

Request API Access