No engineering team
You don’t have in-house developers (or they’re maxed out) and the KYC integration is blocking your launch.
Sumsub & KYC specialists
We integrate Sumsub into your app.
Done-for-you Sumsub and KYC/AML integration for fintechs, crypto and marketplaces that don’t have a dedicated engineering team. From sandbox to production — fully handled.
We reply within 24 hours. No commitment.
Fixed-scope projects · Live in 1–2 weeks · On your own Sumsub account
The problem
You chose Sumsub. Now who integrates it?
KYC integration looks simple in the docs and turns complex in production. These are the walls teams hit without dedicated engineers — and exactly what we remove.
Verification is asynchronous
KYC results don’t arrive instantly. You need to handle webhooks (applicantReviewed), signature checks, retries and applicant status — not polling.
Sandbox ≠ production
In sandbox, checks and webhooks don’t fire on their own, and settings, rules and tokens don’t carry over to production automatically. A classic trap.
Compliance configuration
Getting verification levels right for your KYC/AML requirements and jurisdictions — without over- or under-verifying your users.
What we integrate
The full Sumsub stack, end to end
We work across every Sumsub integration path and wire it into your backend, frontend and mobile apps.
WebSDK
The most common path: server-side access tokens scoped to each applicant, the hosted flow for document capture and liveness, and a clean onboarding UX inside your app.
Mobile SDK
Native integration for iOS and Android, plus React Native and Flutter — with camera and permissions handled correctly.
REST API & applicants
Headless and backend flows: applicant lifecycle, access token generation, document upload and status retrieval against the Sumsub API.
Workflow Builder & levels
We design your verification levels and presets so each user gets exactly the checks your KYC/AML policy requires.
Webhooks
Reliable event handling: signature verification, retry logic, and routing of approved / rejected / on-hold statuses into your product.
Sandbox → production
End-to-end testing in sandbox and a monitored go-live, migrating settings, rules and tokens to production with nothing left behind.
How we work
Live in 1–2 weeks
A focused, fixed-scope process. You stay in control of your own Sumsub account at every step.
- 01
Discovery call
We map your use case, jurisdictions and compliance requirements in a 30-minute call.
- 02
Flow design
We configure verification levels and the Workflow Builder, and agree the onboarding UX.
- 03
Integration
We integrate the WebSDK, Mobile SDK or API and implement webhook handling in your backend.
- 04
Go-live & support
We test end to end, migrate from sandbox to production and stay available for tuning and scaling.
FAQ
Questions before we start
How long does it take to integrate Sumsub?
Most WebSDK integrations go live in 1 to 2 weeks. Deeper API or mobile work with custom workflows can take a bit longer — we give you a fixed estimate after the discovery call.
Do you work with my tech stack?
Yes. Backend in Node.js, Python, Ruby, PHP or .NET; frontend in React, Next.js or Vue; and mobile in iOS, Android, React Native or Flutter. We adapt to your codebase.
How do you handle webhooks and verification statuses?
We implement signature verification, retry handling and event routing so your product reacts correctly to approved, rejected and on-hold applicants — instead of fragile polling.
Do you migrate from sandbox to production?
Yes. Sandbox settings, rules, webhooks and tokens don’t transfer automatically, so we handle the full go-live: re-creating configuration in production and testing the real flow before launch.
Whose Sumsub account do you use?
Always your own Sumsub account. You keep full ownership and control of credentials, billing and data — we integrate on top of it. We configure verification levels alongside your compliance team but don’t provide legal advice.
How do you charge?
Fixed-scope project pricing for the integration, plus an optional support retainer afterwards. You get a clear quote after a short discovery call — no surprises.
Get in touch
Tell us about your integration
Send a short email with your use case and we’ll come back within 24 hours with next steps.