Number Insight API

api:nexmo.com/number-insight · v1.2.1 · source: apis.guru

The Number Insight API delivers real-time intelligence about the validity, reachability and roaming status of a phone number and tells you how to format the number correctly in your application. There are three levels of Number Insight API available: Basic, Standard and Advanced. The advanced API is available asynchronously as well as synchronously.

APIOpenAPI specauth unknown

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Last check

Website answers · checked 2026-10-17

Test & rating

B 82/100

What it does: API · auth: unknown · OpenAPI spec

How the rating is made

Website answers: +40
OpenAPI spec: +20
Auth effort: +5
HTTPS: +5
CORS: +2
Description: +10

Rated 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call; APIs are not called, so B is their best grade.

Use

Documentation: https://developer.nexmo.com/
OpenAPI spec: https://api.apis.guru/v2/specs/nexmo.com/number-insight/1.2.1/openapi.json
Auth: auth unknown

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