An API (application programming interface) lets two software systems exchange data automatically. Integrating APIs means connecting your website, accounting, CRM or operational tools so information flows between them without manual re-entry.
Common integrations
- Payment gateways for online checkout.
- Accounting software for invoices and payments.
- CRM systems for leads captured on your website.
- Courier and logistics services for order tracking.
- Email and messaging services for notifications.
Planning an integration
- Define exactly which data moves, in which direction and how often.
- Read the provider's documentation and terms, including limits and costs.
- Keep API keys on the server, never in website code that browsers can see.
- Plan for failures: retries, alerts and a way to reconcile missed data.
- Test with sandbox or test credentials before going live.
Build or buy
Many integrations are available as ready-made connectors. Custom integration work is worthwhile when connectors do not exist, do not support your process, or when reliability and data control matter.