Which integrations do you support?

Common work includes Stripe, HubSpot, Salesforce, Slack, Notion, Google APIs, and custom webhooks. If a service exposes an API, we can usually integrate it.

How is this different from n8n automation?

API development is custom backend code for your product. n8n is visual workflow automation between tools. We use both — APIs for product logic, n8n for ops and no-code style automations.

API Development & Integrations

REST and GraphQL APIs, webhooks, payment gateways, and third-party integrations — reliable backends that connect your product to the tools your business runs on.

Typical timeline: Typically 2–6 weeks depending on endpoints and integrations

Overview

Modern products are only as strong as the systems they connect to. ZadionLabs designs and builds APIs and integrations that let your app talk to payment providers, CRMs, email platforms, analytics, and internal tools — without fragile one-off scripts.

We deliver REST and GraphQL APIs with clear documentation, authentication, rate limiting, and error handling. Integration work includes Stripe and billing flows, OAuth connections, webhook receivers, queue-based sync, and n8n-ready endpoints when ops teams need visual automation on top.

API engagements often run alongside our MVP, SaaS, and mobile projects — or as a focused build when you have a frontend team and need a production-grade backend or connector layer.

Why teams choose us

REST & GraphQL APIs

Typed, versioned APIs with docs your team and partners can build against confidently.

Payments & billing hooks

Stripe, subscriptions, and invoicing flows wired correctly from day one.

Third-party integrations

CRM, email, analytics, and internal tools connected with retries, logging, and monitoring.

What we deliver

API architecture & endpoint design
REST or GraphQL API implementation
Authentication & authorization layer
Stripe / payment gateway integration
Webhook setup & event handling
Third-party CRM & tool connectors
API documentation & handoff

Tech stack

Node.jsTypeScriptPostgreSQLGraphQLStripeRedis

Related case study

SaaS Platform

Invoice Management Portal

Role-based invoice CRM — admin uploads vendor invoices, users review status, full audit trail, and monthly reporting dashboard.

Read case study

FAQ

Common questions about api development & integrations.

Yes. We often partner with in-house or third-party frontend teams — you keep UI, we deliver the API layer, database, and integrations.

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Tell us about your product — we reply within 24 hours with next steps.

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