Build with IDfier
Verified identities for your product. Log customers in, check their age, verify them with a link, or have them sign with a verified identity.
IDfier verifies people once, with their ID document (chip read with NFC, or a scan) and a face check, and keeps a reusable verified profile in the IDfier app. Your product asks for what it needs; the customer approves in the app, and you receive exactly that.
Products
Login with IDfier
Customers scan a QR code (or tap a button on their phone) and you log them in with verified data.
Age verification
"Over 18" as a yes or no, without ever seeing the date of birth.
Verification links
Send a customer a link to verify, with no integration in your own UI.
EU Digital Identity Wallet
Let customers share from their EU wallet instead of the IDfier app.
IDfier Sign API
Contracts your users sign with a verified identity, inside your product's flow.
Build with AI
These docs as plain Markdown and llms.txt, for coding assistants.
Which API do I need?
| You want to | Use | Credentials |
|---|---|---|
| Log customers in, or check who they are | Identity API: Login | A business client from IDfier |
| Check a customer's age | Identity API: Age verification | A business client from IDfier |
| Verify someone you aren't online with | Identity API: Verification links | A business client from IDfier |
| Have customers sign contracts | IDfier Sign API | An API key from IDfier Sign |
The two APIs are separate: the Identity API runs at api.idfier.com with a
clientid and clientsecret, the IDfier Sign API at sign.idfier.com with
an API key.
Help
Write to support@idfier.com for credentials, scopes or anything these docs don't answer.