Service

API Integrations

Payments, identity, messaging, analytics — integrated with rock-solid reliability and clean abstractions.

Timeline · 1–6 weeks per integrationPricing · From USD 8k per integration · USD 30–60k for a full integration overhaul
Start your projectSee our work

Half of every product is integrations. The half nobody designs for, where corner cases live and weekends die. We've shipped enough Stripe webhooks, Twilio flows, OAuth dances, and accounting syncs to know exactly where the dragons are — and we wire them up so they don't bite.

Who it's for

Built for teams that need senior engineering — fast.

  • Teams adding payments, billing, identity, or messaging to a product
  • Companies wiring up CRM ↔ accounting ↔ marketing tool sync
  • Engineering orgs replacing brittle in-house integrations
  • Anyone whose webhooks fail silently at 3am
What you get

Concrete deliverables. No vague promises.

Payments — Stripe, Paddle, Lemon Squeezy

Plans, seats, usage metering, prorations, webhooks (with idempotency), customer portal, tax (Stripe Tax / Avalara), 3DS, dunning.

Identity & SSO

OAuth 2.0 / OIDC, SAML for enterprise, social logins, MFA, magic links, organisation memberships, SCIM provisioning.

Comms — Twilio, SendGrid, Postmark

SMS, voice, programmable email, transactional templates, deliverability monitoring, bounce/complaint handling.

Data sync between systems

Bidirectional, idempotent, conflict-aware. CRM ↔ accounting ↔ product DB, with full audit trail and replay capability.

AI providers

OpenAI, Anthropic, Bedrock, Together — abstracted behind a clean interface so you can route per-task and switch models without rewrites.

Observability & retries

Every integration has structured logs, alerting on failure, automatic retries, and a manual replay tool for ops.

How we work

A repeatable, transparent process.

  1. Audit
    Existing integrations, failure modes, cost.
  2. Design
    Clean interfaces, idempotency keys, retry strategy.
  3. Build
    One integration at a time, fully tested before the next.
  4. Harden
    Chaos test failure modes, replay tooling, alerts.
  5. Document
    Runbooks, API contracts, on-call playbook.
Stack

Battle-tested tools we typically reach for.

StripeTwilioSendGridAuth0OAuth 2.0SAMLOpenAISalesforceHubSpotTemporal
Recent work

See it in production.

AI · Sales Growth

LeadFlow AI

Autonomous lead generation & outreach

Read case study
AI · Cybersecurity

EmberXAI

Explainable malware detection

Read case study
FAQ

Common questions about api integrations.

Can you take over an existing flaky integration?+

Yes — that's a big chunk of what we do. Audit, then either patch surgically or rebuild cleanly with the lessons from the failures.

Do you handle PCI compliance?+

We architect so you stay out of PCI scope (Stripe Checkout / Elements, never raw card data on your servers). For PCI-required flows, we follow SAQ-A or A-EP and document the boundaries.

What about webhooks that fail?+

Idempotency keys, signature verification, dead-letter queues, and a manual replay tool with audit logging. Webhook failures become visible incidents, not silent data loss.

Can you integrate with our internal API?+

Yes. We treat your internal API the same as any third party — versioned contracts, error budgets, observability, retries.

Ready to start?

30-minute intro call. Concrete plan and fixed pricing in writing within a week.

Send a project brief Chat on WhatsApp