API & CRM integrations
Athryx Tech designs and builds API and CRM integrations for companies that need their software to share data reliably. We connect web platforms, mobile apps, CRMs, ERPs, telephony, and third-party services so teams in Romania and abroad are not copying information between tools by hand.
Integrations fail when they are treated as an afterthought. We define contracts, error handling, retries, and ownership. The goal is a boring, observable data flow that operations can trust.
This work shows up across our delivery: enterprise platforms such as Snap-on's logistics software, operational systems at Cantacuzino Castle, and AI automation that only works when CRM, ticketing, or telephony connections are solid, including voice and workflow projects layered on real systems of record.
Whether you need a new API for partners or a sync between existing products, we document what moves, how often, and what happens when something breaks.
Problems we solve
- Manual copy-paste between CRM, ERP, and custom tools
- Fragile one-off scripts with no monitoring
- Partner or mobile apps blocked by missing APIs
- Automation projects that cannot read or write live data
Who this is for
- Teams connecting a new product to Salesforce, HubSpot, or similar CRMs
- Operators unifying ticketing, payments, and back-office systems
- Companies exposing APIs to partners or internal squads
- Anyone adding AI or mobile on top of existing business systems
What we deliver
- API design and implementation
- CRM and ERP connectors
- Webhook and event-driven sync patterns
- Auth, rate limits, and audit-friendly logging
- Data mapping and reconciliation tooling
- Integration tests and failure alerts
- Documentation for your team and vendors
Technologies & stack
- REST and webhook-based architectures
- TypeScript and Node.js integration services
- Queue and retry patterns for reliability
- CRM/ERP vendor APIs
- Monitoring and structured logging
How we work
- 01Inventory systems, owners, and fields that must stay in sync
- 02Design contracts and failure behaviour before coding
- 03Implement with staging tests against sandbox environments
- 04Go live with monitoring and a rollback plan
Selected reference
Integrations are part of Athryx Tech delivery across production systems: Cantacuzino Castle's connected ticketing and operations stack, Snap-on's enterprise logistics platform, and AI automation projects (including Cantacuzino voice agents and NEI Security vision workflows) that depend on reliable links to operational tools.
Frequently asked questions
Can you work with our CRM vendor?
Yes, if the vendor provides APIs or middleware we can access. We confirm limits and auth methods during discovery.
Do you build real-time sync or batch jobs?
Either, depending on latency needs and API limits. We choose the simplest reliable pattern.
What if a third-party API is unstable?
We add retries, idempotency, and alerts, and we document operational playbooks. We also tell you when a vendor API is not fit for the workflow.
Will you document the integration?
Yes. Diagrams, field mappings, and runbooks are part of delivery so you are not dependent on tribal knowledge.
Related services
Need systems to talk to each other?
List the tools involved and what must stay in sync. We will propose an integration approach and risks to watch.
Get in touch