API Integrations & Business Automation

We connect systems that don't talk to each other: ERP with e-commerce, CRM with marketing, payments with accounting, marketplace with stock. We automate repetitive processes — saving 20+ hours/week of manual copy-paste.

What we integrate — frequently in Romania & EU

e-Factura ANAF

SPV API, UBL XML generation, automated reporting. Mandatory B2B (2024) + B2C (2025).

eMAG Marketplace

Product, stock, price, order sync. API Marketplace v2, AWB, returns.

Couriers RO/EU

Sameday, FAN Courier, Cargus, DPD, GLS, Easybox, DHL, UPS. AWB generation, tracking.

ERPs

SmartBill, Saga, ContaBlu, NexusERP, SAP, Oracle. Customer/article/invoice/payment sync.

Payments

Stripe, PayU, Netopia, Adyen, Mollie. Webhooks, auto refund, recurring billing, dispute handling.

CRM

HubSpot, Pipedrive, Salesforce, Zoho. Lead capture, account sync, automated follow-up.

Marketing

Mailchimp, Klaviyo, Brevo, ActiveCampaign. Dynamic segments, abandoned cart, lifecycle.

Analytics & ads

GA4, Meta Pixel, Google Ads, TikTok Pixel. Server-side tracking (sCDN), Conversion API.

Communication

Twilio, MessageBird, WhatsApp Business API. SMS OTP, notifications, customer service.

Custom code vs. low-code (n8n, Make)

n8n / Make / Zapier — when they make sense

  • Simple workflows with low volume (under 1000 executions/day)
  • Non-technical team that wants to modify themselves
  • Quick prototyping for validation
  • Integrations between popular SaaS with existing connectors

Custom code — when better

  • High volumes (10k+ executions/day) — low-code costs explode
  • Low latency (under 200ms) — n8n adds overhead
  • Complex logic with state machine, retry, idempotency
  • Integrations with custom or exotic systems
  • Strict compliance (auditability, log retention)

Stack & approach

  • Backend: Node.js (NestJS, Fastify), Python (FastAPI), Go for intensive workloads
  • Queue & workers: BullMQ, RabbitMQ, AWS SQS — for retry + idempotency
  • n8n self-hosted: when low-code fits (Hetzner, Docker, auto backup)
  • Monitoring: Sentry, Grafana, Slack/email alerts on failed jobs
  • Idempotency keys on all inbound webhooks
  • Exponential backoff + circuit breaker for downstream API down
€1,500 – €30,000+ EUR
From a simple Stripe integration to complex ERP-CRM-e-commerce sync.
Get estimate

Typical packages

Simple integration — €1,500-€3,000

e.g., Stripe checkout, SendGrid email, Twilio SMS, Google Calendar sync. 3-5 days work. Includes monitoring + 30 days support.

Mid-tier integration — €3,000-€8,000

e.g., complete e-Factura ANAF, bidirectional CRM-ERP sync, courier integration. 1-3 weeks. Includes retry logic, error reporting, admin dashboard.

Complex integration — €8,000-€30,000+

e.g., central hub syncing 5+ systems (e-commerce + ERP + CRM + marketplace + courier + e-invoicing). 4-12 weeks. Includes event-driven architecture, queue, 24/7 monitoring.

Have systems that don't talk to each other?

30-min call to understand your flow + recommendation for the most efficient path.

Schedule call

FAQ

How much does an integration cost?

Simple: €1,500-€3,000. Mid: €3,000-€8,000. Complex: €8,000-€30,000+. Separate monthly costs: hosting, monitoring, optional SaaS licenses.

Custom code or low-code?

We recommend based on volume and complexity. n8n self-hosted for sub-1000 executions/day workflows. Custom code for high volumes, complex logic, or strict requirements.

Do you integrate legacy systems without APIs?

Yes. Strategies: headless browser scrape, read-only DB access, file exchange (CSV, XML SFTP), email parsing, RPA (UIPath/Robot Framework) for extreme cases.

Who owns the credentials?

You. All API keys, secrets, accounts are yours (1Password, Bitwarden). We work with shared access during the project, after we hand over completely.