KYC-as-a-Service for modern onboarding
AttestID is a KYC-as-a-Service API — identity document verification, liveness detection, and cross-company fraud scoring for fintechs, lenders, and marketplaces.
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Seconds
to a verification decision
3 doc types
ID, passport, driver's licence
REST + SDK
JavaScript / React integration
How it works
Four steps, one API call
The customer completes capture on your app or ours; you get a single decision back.
Step 1
Document capture and OCR
The customer photographs a national ID, passport, or driver's licence; AttestID extracts and validates the printed fields against the document.
Step 2
Liveness detection
A selfie is matched against the document photo and checked for liveness, catching printed photos and screen replays.
Step 3
Fraud and duplicate detection
Every submission is screened against prior verifications across AttestID's whole customer base for identity reuse and cross-company fraud.
Step 4
Verification decision
A pass, fail, or needs-review decision returns via API in seconds, with the underlying evidence retained for audit.
See it in action
Try a working integration before you write any code
Android demo app
A Flutter app running a full document capture and liveness verification flow against the AttestID SDK.
Unsigned debug build — Android will warn about installing from an unknown developer.
Download APKWeb demo
The same flow as a React / JavaScript integration, with the full source walked through step by step.
View web demoPricing
Priced per verification
Pick a plan based on how many verifications you expect to run a month. Every plan is set up as a custom quote, not a self-serve subscription.
Starter
Up to ~500 verifications / month
For new fintechs and pilots getting their first integration live.
Get a quoteGrowth
Up to ~2,000 verifications / month
For scaling lenders and marketplaces with steady onboarding volume.
Get a quoteBusiness
Up to ~10,000 verifications / month
For established platforms with high-volume onboarding.
Get a quoteEnterprise
10,000+ verifications / month
For high-volume platforms needing dedicated support and volume commitments.
Get a quotePublic sector? Government plans use a flat monthly fee. See the full pricing page or contact us for a rate.
FAQ
Frequently asked questions
What is AttestID?+
AttestID is a KYC-as-a-Service API built by BrimSage. It verifies government-issued ID documents, checks liveness against a selfie, and screens for fraud, returning a verification decision that fintechs, lenders, and marketplaces integrate directly into onboarding.
Which documents does AttestID support?+
National ID documents, passports, and driver's licences — the printed fields are extracted and validated against the document.
How is AttestID different from a generic KYC provider?+
It adds cross-tenant fraud detection that catches identity reuse across different companies on the platform, not only within one customer's own users.
Who uses AttestID?+
Fintechs, digital lenders, exchanges, and marketplaces that need to verify identity before onboarding or extending credit.
How do I integrate AttestID?+
Via a REST API with a JavaScript / React SDK. Companies sign up, receive sandbox API keys, and move to live keys once their integration is reviewed.
Developer documentation
API reference, authentication, webhooks, and the JavaScript / React and Flutter SDK integration guides.
Start verifying in the sandbox today
Create a company account, get sandbox API keys immediately, and move to live once your integration is reviewed.