dyvertexpayments
A payment succeeded on their side and never arrived on yours.
Integrations
Integrations that keep working when the other side does not.
Payments, CRMs, ERPs, and whatever internal API someone promised is well documented. Built with retries, idempotency, and an answer for the hour it returns 500.
- commit
- CI
- migration
- deploy
- production
- real load
An integration is only real once the other side has had a bad day.
You are probably here because
If none of these sound like your app, the free call is still the fastest way to find out what does.
sync
Two systems disagree about the same customer, and both are confident.
webhooks
The webhook fires twice and the second one creates a duplicate.
docs
The API documentation and the API do not match.
What we build
Fixed scope, fixed price, agreed before anyone writes code. If something outside this turns out to matter more, we re-scope in the open instead of quietly billing for it.
- Contract first
- What the other side actually returns, including the undocumented cases, verified against their sandbox before anything is built on top of it.
- Reliability
- Retries with backoff, idempotency keys, and a dead-letter path, so a failed call is something you can recover rather than something you find out about from a customer.
- Webhooks
- Signature verification, replay protection, and handlers that are safe to run twice, because sooner or later they will be.
- Sync and reconciliation
- One side named as the source of truth, in writing. A reconciliation job that hunts drift across systems is a larger piece of work and gets its own scope after the audit, not a line in this one.
- Tests
- Tests against their sandbox, recorded webhook fixtures replayed including the duplicate and out-of-order cases, and a failure-injection run. We use AI to enumerate the ways the other side can misbehave, which is a longer list than their documentation admits, then we exercise the retry path against it before a customer does.
- Observability
- Every call logged with a correlation ID, and alerts on the failure rate rather than on individual errors nobody reads.
- Sandbox to production
- Credential handling, environment separation, and a rollout that does not use live customer money as the test suite.
StripeRESTGraphQLWebhooksOAuthPostgresRedisHonoNestJSSentry
Price
One number, agreed before we start.
One integration against a documented API fits here. A multi-system sync with reconciliation is scoped on the call.
We have shipped our own products to real users: Mira on the iOS App Store and ariex.fit in public beta. There are no rescue case studies in the portfolio yet, and we are not going to claim there are some under NDA.
Integrations
Audit & Fix
Payments, CRMs, and external APIs, built to survive their outages.
Start with the free callQuestions we get asked first.
Anything not answered here is worth twenty minutes on a call.
Can you integrate an API we cannot share publicly?
Yes. We sign an NDA before you send credentials or documentation, and we work inside your sandbox account rather than ours.
What if their API is badly documented?
That is the normal case. We probe the sandbox and write down what it actually does, including the responses their documentation does not mention. That written contract is part of what you get.
Who is responsible when their API goes down?
They are, but the user experience is yours. So the work is about degrading gracefully: queue the call, retry it, show the user something honest, and reconcile once the other side is back.
Do you handle payment integrations specifically?
Yes, Stripe most often. Payments get the strictest treatment here because a lost webhook is money: idempotency keys, signature verification, replay protection, and reconciliation against their records rather than trusting a single callback.
Can you fix an integration someone else built?
Yes, and it starts with the audit, which puts the fix list in front of you in two working days. Broken integrations are usually broken in the retry and duplicate handling rather than in the happy path, and that is not visible from the outside.
Book the audit
Want a straight answer on this one?
Send the repo, the rejection notice, or just the idea. Twenty minutes is enough to tell you whether a rescue, a rebuild, or a clean no is the right next step.
Prefer email? [email protected]