---
title: "Fingerprint"
method: POST
path: "/fingerprint"
tags: ["Core"]
---

# Fingerprint

`POST /fingerprint`

## Request

- Base URL: `https://api.evervault.com`
- URL: `https://api.evervault.com/fingerprint`
- Auth: HTTP basic
- TypeScript: <https://skmtc.dev/evervault/apis/evervault-api/docs/fingerprint/post.ts> (a function with typed inputs; its response is checked against the schema)

Generate a fingerprint for an encrypted value and retrieve metadata such as the time of encryption,
the type of data, the data role and category-specific metadata (e.g., card metadata)
without accessing the plaintext value.

## Request body

- object
  - `token` string, required: The encrypted data to be fingerprinted.

## Response `200`

The metadata of the encrypted data that was submitted for fingerprinting.

- object
  - `type` 'integer' | 'float' | 'boolean' | 'string', required: The type of the encrypted value.
  - `category` 'card-number': The category or specific nature of the encrypted value.
  - `encryptedAt` integer: The date and time when the value was encrypted. This is a Unix timestamp in milliseconds. This field is currently only populated for values encrypted with a Data Role.
  - `role` string: The data role of the encrypted value.
  - `fingerprint` string, required: A unique identifier for the encrypted value.
  - `metadata` CardMetadata: Only present if category is `card-number`
    - `bin` string, required: The first 6 or 8 digits of the card number.
    - `lastFour` string, required: The last 4 digits of the card number.
    - `brand` 'visa' | 'mastercard' | 'american-express' | 'discover' | 'diners-club' | 'jcb' | 'unionpay': The card brand associated with the payment card.
    - `funding` 'debit' | 'credit' | 'prepaid' | 'deferred-debit' | 'charge': The card funding type specifies the method by which transactions are financed.
    - `country` string, iso-3166-1-alpha-2: The country where the card was issued.
    - `currency` string, iso-4217-alphabetic: The currency of the card.
    - `issuer` string: The card issuer.
    - `segment` 'consumer' | 'commercial' | 'business' | 'government' | 'payouts' | 'all': The card segment indicates the primary market or usage category of the card.

## Changes

- **2026-11-06** `8d0ca833fa04`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/evervault/apis/evervault-api/changes/fingerprint/post.md)

---

[API](https://skmtc.dev/evervault/apis/evervault-api.md) - [All operations](https://skmtc.dev/evervault/apis/evervault-api/llms.txt) - [OpenAPI document](https://skmtc.dev/evervault/apis/evervault-api/revisions/8d0ca833fa04?raw)