---
title: "Premium phone number lookup"
method: POST
path: "/v1/contact-details/premium-phone/sync"
tags: ["Contact details"]
---

# Premium phone number lookup

`POST /v1/contact-details/premium-phone/sync`

Find and verify phone numbers for a LinkedIn profile using multiple data sources.

<span>⚡ <strong>Rate limit:</strong> 120 requests per 1 minute</span>

<span>💰 <strong>Cost:</strong> 5 credits per request&nbsp;<span title="Pricing shown is default pricing. Actual pricing may vary.">ⓘ</span></span>

<span>⏱ <strong>Recommended timeout:</strong> 1 minute&nbsp;<span title="Recommended timeout: set your HTTP client timeout to at least 1 minute for this endpoint.">ⓘ</span></span>

## Request body

- object
  - `apiKey` string, required — Your Fiber API key
  - `linkedinUrl` string, required — LinkedIn profile identifier. Accepts a full URL, a bare slug, or a LinkedIn entity URN.

## Response `200`

Default Response

- object
  - `output` object, required
    - `linkedinUrl` string, required — Resolved LinkedIn profile URL.
    - `phoneNumbers` object[], required — Phone numbers found for this person, annotated with identity verification when available.
      - `number` string, required — Phone number in E.164 format.
      - `type` 'mobile' | 'other' | 'unknown', required — Phone line type.
      - `callerIdValidation` object, nullable — Result for attempted phone number verification.
        - `category` 'EXACT_MATCH' | 'PROBABLE_MATCH' | 'FAMILY_MEMBER' | 'BUSINESS_LINE' | 'INCONCLUSIVE', required — How confidently this phone number is associated with the person.
        - `reasoning` string, required — Brief explanation for the confidence level.
        - `callerIdName` string, required — The registered name for this phone number.
  - `chargeInfo` union, required
    - object — Credits were charged immediately for this operation
      - `method` 'charged-now', required
      - `creditsCharged` number, required
      - `lowCreditAlert` object, nullable — Contains a link to get more credits, a warning message, and the remaining credit count.
        - `getMoreCreditsUrl` string, uri, required — URL to top up credits or restart billing cycle to get fresh credits.
        - `message` string, required — Human-readable credits warning.
        - `availableCredits` number, required — Number of credits remaining in the current billing period.
    - object — Credits will be charged after the operation completes
      - `method` 'charging-later', required
      - `message` string, required
      - `lowCreditAlert` object, nullable — Contains a link to get more credits, a warning message, and the remaining credit count.
        - `getMoreCreditsUrl` string, uri, required — URL to top up credits or restart billing cycle to get fresh credits.
        - `message` string, required — Human-readable credits warning.
        - `availableCredits` number, required — Number of credits remaining in the current billing period.
    - object — Credits that were charged for an asynchronous operation
      - `method` 'charged-for-async-process', required
      - `creditsCharged` number, required
      - `message` string, required
      - `lowCreditAlert` object, nullable — Contains a link to get more credits, a warning message, and the remaining credit count.
        - `getMoreCreditsUrl` string, uri, required — URL to top up credits or restart billing cycle to get fresh credits.
        - `message` string, required — Human-readable credits warning.
        - `availableCredits` number, required — Number of credits remaining in the current billing period.
    - object — No credits were charged for this operation
      - `method` 'free', required
      - `message` string, required
      - `lowCreditAlert` object, nullable — Contains a link to get more credits, a warning message, and the remaining credit count.
        - `getMoreCreditsUrl` string, uri, required — URL to top up credits or restart billing cycle to get fresh credits.
        - `message` string, required — Human-readable credits warning.
        - `availableCredits` number, required — Number of credits remaining in the current billing period.
    - object — Credits were refunded for this operation
      - `method` 'credits-refunded', required
      - `creditsRefunded` number, required
      - `message` string, required
      - `lowCreditAlert` object, nullable — Contains a link to get more credits, a warning message, and the remaining credit count.
        - `getMoreCreditsUrl` string, uri, required — URL to top up credits or restart billing cycle to get fresh credits.
        - `message` string, required — Human-readable credits warning.
        - `availableCredits` number, required — Number of credits remaining in the current billing period.
  - `warnings` object[], nullable — Warnings about extraneous fields in request
    - `field` string, required — Full path to extraneous field (e.g., 'searchParams.ExtraField')
    - `message` string, required — Warning message
  - `advice` string[], nullable — Tips, recommendations, and suggestions for using this API effectively.

## Other responses

- `400` — Default Response
- `401` — Default Response
- `402` — Default Response
- `403` — Default Response
- `404` — Default Response
- `422` — Default Response
- `429` — Default Response
- `500` — Default Response
- `503` — Default Response

---

[API](https://skmtc.net/fiber/apis/fiber-ai-api.md) · [All operations](https://skmtc.net/fiber/apis/fiber-ai-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/fiber/fiber-ai-api/revisions/87ad9a3ecc4c/schema)