Vertical SaaS that gives a salon, barbershop or solo beauty specialist their own booking website in minutes.
Iurii Connects: API & Integrations
Connect your systems – CRMs, ERPs, payment gateways, logistics providers. I’ve integrated with 32+ markets and dozens of external platforms.
Based in Finland (UTC+2) · VAT-registered FI29845875 · Respond within 24 hours
Your tools don’t talk to each other. Orders come in through your shop but someone still copies them into the CRM manually. The warehouse system is its own island. Reports are assembled by hand every Monday morning.
I build the connective tissue between your systems – reliable, well-tested, and observable. When something breaks (and something always does), you know about it before your customers do.
I’ve integrated with Stripe, Zoho CRM, Airtable, custom ERPs, logistics APIs, government VAT services, and dozens of other platforms. I know how to read poor documentation, deal with rate limits, and build retry logic that actually works.
What’s included
- REST and GraphQL API design and implementation
- Stripe, Zoho CRM, Airtable, ERP integrations
- Webhooks, event queues, and real-time data sync
- OAuth 2.0 and API key authentication flows
- Rate limiting, retry logic, and error alerting
- API documentation
How I approach this
01
Audit the landscape
Understand every system involved: APIs, auth methods, data formats, rate limits, failure modes.
02
Design the contract
Define exactly what data flows where, in what format, on what triggers. Agree before building.
03
Build with resilience
Every integration is built to handle failures gracefully: retries, dead-letter queues, alerting.
04
Monitor in production
Integrations are only as good as their observability. Logging and alerting built in from the start.
Relevant projects
View all projects
Open-source spec and engine that turns straight quotes, hyphens and three dots into curly quotes, dashes, ellipses and no-break spaces for 10 locales.
Verified n8n node for VIES VAT validation and EU rate lookups in a workflow, so onboarding or invoicing acts on a real VAT number, not a well-formed one.
Related articles
View all articles· 10 min
E-commerce order automation that cut 160+ hours/month of manual work to zero: Stripe webhook to VAT invoice and tracking in under 2 minutes.
· 11 min
Stripe webhook production architecture: idempotency keys in PostgreSQL and Redis, a BullMQ queue, and signature verification in Next.js App Router.
· 9 min
How to call a logistics provider’s API from an order-processing worker, and why some booking APIs answer immediately and others don’t.
What Clients Say
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Our sales team was copying leads from the website into HubSpot by hand and things were falling through the cracks.
Ingrid Solberg 🇳🇴
Operations Manager
Services
“
We picked vatnode for our B2B billing flow and asked Iurii to help us integrate it properly.
Mārtiņš Liepa 🇱🇻
CTO
AvailableReady to discuss your api & integrations project?
Tell me what you’re building or stuck with. I’ll reply within 24 hours.