Comparison
Peneu vs. Building Payment Infrastructure In-House
Some teams should build their own payment layer. Most underestimate what it takes to keep one running. Here's how to decide with your eyes open.
What 'building it yourself' actually means
Building in-house means your engineers integrate each payment provider and bank directly, and write the logic around them: which provider handles which payment, what happens on failure, how webhooks are verified and de-duplicated, how refunds are issued and tracked, and how everything reconciles. The first integration is the easy part; the work that lasts is maintaining several, as providers change their APIs and your business adds methods and markets.
Comparison
Side-by-side comparison
| Criteria | Building in-house |  Using an orchestration layer (Peneu's approach) |
|---|---|---|
| Control | Total: every rule and screen is yours | Configure rules within what the layer offers |
| Time to first provider | Your integration project | Integrate once to the layer |
| Each additional provider | Another integration to build and maintain | Connected behind the same integration, where available |
| Routing, retries, failover | Designed, built and tested by your team | Provided by the layer, configured by you |
| Reconciliation across providers | Built by your team | Provided across connected providers |
| Ongoing maintenance | Yours: API changes, incidents, security | Shared with the layer's provider |
The costs that don't appear in the first estimate
Build estimates usually cover the integrations. The long-term costs are elsewhere.
- Keeping up with provider API changes and new payment methods.
- On-call engineering for payment incidents, often at the worst times.
- Idempotency, webhook verification and retry safety, done correctly everywhere.
- Reconciliation tooling and the finance team's time when it breaks.
- Security and audit work for systems that handle payment data.
When building makes sense
Building is the right call for some businesses.
- Payments are core to your product, and you have a dedicated payments engineering team.
- Your routing or reconciliation needs are genuinely unusual.
- Your volumes justify the ongoing investment, and you've costed it over several years, not one.
Questions to settle before deciding
Answer these with your engineering and finance leads in the room.
- How many providers will we run in two years, and who maintains each integration?
- Who is on call when payments fail on a sale day?
- How will we reconcile across providers, and who owns it?
- What would we build next if we didn't build this?
Build or use a layer?
Build when payments are your product and you can staff them properly for years. Use a layer when payments are essential but not your differentiator, and your engineers' time is better spent elsewhere. Either way, the principles (idempotency, verified notices, daily reconciliation) are the same; the developers page lists them.
FAQ
Frequently asked questions
Can we start with a layer and build later?
Yes. Keeping your own systems free of deep provider-specific assumptions makes a later move in either direction easier.
Will we lose control of routing?
You set routing rules in the layer rather than writing them in code. How much can be configured depends on the platform; ask to see it.
What does Peneu offer here?
How Peneu describes its routing, retries and reconciliation is on the platform pages; what's available for your business is confirmed during onboarding.
Deciding whether to build?
We're happy to talk it through, including when building is the better answer.