API platforms
Stable interfaces for your products, partners and internal tools.
Platform & Integration
Systems that share a language — not another export file.
Most digital friction is not a missing app. It is two systems that do not agree on a customer, an order or a status.
We design APIs, events and integrations that connect CRM, ERP, commerce, payments, identity and the tools around them.
Web
Mobile
API
CRM
ERP
Pay
POST /webhooks200
RESTWebhookSync
API design and development
CRM and ERP connections
Payment integrations
Event-driven flows
Service overview
What is Systems that share a language — not another export file.?
Integration is the work of making systems agree: identifiers, status, retries and the person who is notified when they do not.
Businesses need it when staff copy between tools, when ecommerce invents stock, or when finance cannot trust operational numbers.
PARSVIA delivers the contracts, the services, the mapping and the operations around them — logs, alerts, replay — not a one-off script.
The value is a company that can change one system without breaking the others, because the connections are explicit.
- API design and development
- CRM and ERP connections
- Payment integrations
Scope
What we deliver
CRM ↔ ERP
Customers, invoices and fulfilment sharing one identity.
Payments
Capture, refund, webhook handling and reconciliation paths.
Commerce and inventory
Availability and orders that match the warehouse.
Identity
SSO, roles and the permissions other systems must respect.
Partner connections
Documented, versioned access instead of a private spreadsheet of endpoints.
Delivery model
How we work
- 01
Discover
Which systems own which facts, and where copies currently diverge.
- 02
Define
Contracts, error handling, frequency and who operates the integration.
- 03
Design
Mapping, events versus batch, and the human path when sync fails.
- 04
Build
Services, queues, auth and observability.
- 05
Test
Idempotency, partial failure, replay and volume.
- 06
Launch & improve
Cutover, monitoring and the next connection.
System architecture
Example system architecture
We design a controlled stack from user interfaces through API, backend and data layers, with CRM, ERP, payments and third-party services connected where they belong.
CRM / ERP
Payments
Identity
Experience layer
Application & API
Data & integrations
Analytics
Third-party APIs
Operations tools
CRM / ERP
Payments
Identity
Capabilities
Technologies we use
- REST API
- Webhooks
- TypeScript
- PostgreSQL
- Cloud
- Authentication
- Node.js
- Python
- Docker
- AWS
Our approach
Why PARSVIA
Integration is the work of making systems agree: identifiers, status, retries and the person who is notified when they do not.
Contracts first
We write what the systems owe each other before we write adapters.
Failure is designed
Retries, dead letters and alerts are part of the product.
Security as a default
Auth, scope and audit — especially when partners are involved.
Operable by your team
Documentation and runbooks, not a mystery box only we can restart.
Outcomes
What this delivers for your business
Fewer manual reconciliations
Operational clarity and fewer manual steps across teams and systems.
Shared identifiers across tools
Operational clarity and fewer manual steps across teams and systems.
Faster change without hidden coupling
Operational clarity and fewer manual steps across teams and systems.
Visibility when a sync fails
Operational clarity and fewer manual steps across teams and systems.
Use cases
Where this service fits
API platforms
Stable interfaces for your products, partners and internal tools.
CRM ↔ ERP
Customers, invoices and fulfilment sharing one identity.
Payments
Capture, refund, webhook handling and reconciliation paths.
Commerce and inventory
Availability and orders that match the warehouse.
Identity
SSO, roles and the permissions other systems must respect.
Partner connections
Documented, versioned access instead of a private spreadsheet of endpoints.
FAQ
Questions teams usually ask
Can you connect SaaS tools we already pay for?+
Yes. We use official APIs where they exist and design a durable layer when they are incomplete.
What if a vendor has no API?+
We look at files, databases and RPA only when they are honest about the risk. Sometimes the right answer is to change the vendor.
How do you keep integrations from becoming brittle?+
Versioned contracts, tests, monitoring and a clear owner. We avoid point-to-point spaghetti where a hub is justified.
Can partners consume our API?+
Yes. We design authentication, rate limits, documentation and support paths for external consumers.
Related services
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Learn moreCRM Software Solutions
PARSVIA designs and engineers CRM software — pipeline, contacts, activities, quotes and reporting — integrated with the rest of the operation.
Learn moreLet's make the systems agree.
Tell us which two tools currently disagree — and what that costs every week.