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Intel allows you to retrieve detailed information about phone numbers. This includes carrier information, line type (e.g. mobile, landline, VoIP), portability status, and optionally caller name information. This data can be valuable for validating phone numbers, enhancing user profiles, and making informed decisions about communication channels. With a single API call, you can access comprehensive phone number intelligence to improve your user verification processes and reduce fraud risks.

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KYC Match

Intel also offers KYC Match, which lets you verify identity attributes - given name, family name, address, postal code, locality, region, country, date of birth, and email - against the subscriber record held by the end-user’s mobile operator. Send a phone number plus the attributes you want to check, and Prelude resolves the operator internally and returns a per-attribute result: true, false, or not_available when the operator cannot answer. For fuzzy attributes (name parts, address, locality, region, email), a similarity score (0-99) is returned on a non-match so you can tell a near-miss from a clear mismatch.
KYC Match is currently available for France (Orange, SFR, Bouygues) and must be enabled for your account. Contact us to get access.
See the KYC Match API reference to get started.

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API

The Prelude v2 API is a REST API and uses standard HTTP features and statuses. The current URL is https://api.prelude.dev/v2.

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Authentication

To perform requests on the API, you need to provide a v2 API key in the Authorization header. You can create an API key in the Dashboard, under the API Keys section of the settings.
Example request
curl --request POST \
     --url 'https://api.prelude.dev/v2/*' \
     --header 'Accept: application/json' \
     --header 'Authorization: Bearer <API_KEY>'

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Errors

Prelude uses conventional HTTP statuses to indicate the success or failure of a request:
  • Codes in the 2xx range indicate success.
  • Codes in the 4xx range indicate an error that failed given the information provided (e.g. required parameter was omitted, authentication failed or a rate limit was reached).
  • Codes in the 5xx range indicate an error with Prelude’s servers (these are rare).
The Prelude API returns errors using a JSON object in the response body with a machine-readable code and a human-readable message and a param field. See Errors for more details as well as a list of all possible error codes.

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Backend SDKs

Integrate effortlessly with Prelude using our Backend SDKs for your platform of choice.

Node.js

Learn how to integrate the Node.js SDK into your application.

Go

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Python

Learn how to integrate the Python SDK into your application.

Kotlin/Java

Learn how to integrate the Kotlin/Java SDK into your application.

Ruby

Learn how to integrate the Ruby SDK into your application.

PHP

Learn how to integrate the PHP SDK into your application.

C#

Learn how to integrate the C# SDK into your application.