§ Service 04
2-6 weeks · fixed fee
Depends on number of systems connected

If it has an API,
we orchestrate it.

Legacy ERP, new CRM, shared database, two payment gateways, and the boss's spreadsheet. We connect them without forcing you to change anything that already works.

Request free assessment See what's included → Free assessment · 30 min
APIs connected / project
3-12average
Average flow latency
<2seconds
Vendor lock-in
0your infra
Automatic retries
100% configured
§ What's included

What kinds of integration we build.

The technical landscape of a 50-500 employee company is heterogeneous by default: an eight-year-old ERP, a new CRM, two marketing platforms, a critical database maintained by the person about to retire, a payment gateway, and a Drive with six spreadsheets sustaining reports nobody wants to document. Integrating this stack without replacing it is what we do — and we do it without locking you into vendor contracts.

REST and GraphQL APIs

80% of your modern tools have documented APIs. We consume them respecting rate limits, pagination, authentication (OAuth2, API key, HMAC), and transient errors with exponential backoff. We never leave a flow without failure handling.

Bidirectional webhooks with signature

When an app needs to notify you of an event (new lead, payment processed, ticket updated), we expose an n8n endpoint with HMAC verification, idempotency, and replay protection. And vice versa: we emit webhooks to external systems with the same security.

Direct database connection when needed

Legacy ERPs sometimes lack a decent API. We connect via direct SQL (PostgreSQL, MySQL, SQL Server, Oracle) with limited permissions, explicit transactions, and full operation logs. For Active Directory / LDAP, the same. It works on any system where data exists.

RPA when there's no other option

For the few cases where there's no API or database access (legacy intranets, locked supplier portals), we automate the browser with Playwright or similar tools. It's not our first choice, but when it's the only one, we make it maintainable.

We'd been trying for two years to get the ERP and CRM talking. They told us we needed to replace one. FlowProp connected them in six weeks with n8n. We still have both systems.

What we don't do

  • We don't ask you to switch ERPs / CRMs. We work with what you have.
  • We don't use Zapier or Make. Self-host with n8n; your credentials don't leave your infra.
  • We don't deploy "to production" without staging. We test against real data first.
§ Stack

Technology we use for your integrations.

Orchestration
n8n · self-hosted
Protocols
REST · GraphQL · gRPC · SOAP
Databases
PostgreSQL · MySQL · SQL Server · Oracle
Auth
OAuth2 · HMAC · JWT · API key
RPA
Playwright · Puppeteer · Browserless
Observability
Sentry · Grafana · audit log

How many systems
need to talk?

Free 30-min assessment. We map your stack, identify the friction points, and give you a plan with fixed fee.

Request assessment →