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Person APIs

Work Email Lookup API

Resolve a person from any identifier (email, phone, social_media_url, or name) and get back their best work email. The request is queued and returns a request_id; poll the status endpoint or supply a callback_url.

POST https://api.nyne.ai/person/email API key

Manual credentials take precedence over your account key.

Overview

The Email Finder API focuses on resolving a verified business email for a person, giving enrichment and sales workflows a narrow endpoint for email append.

Best for

  • Finding business emails
  • Completing CRM contact records
  • Routing email append separately from full enrichment

Returns

  • Business email when available
  • Resolution status
  • Profile context for the matched person

Implementation guide

Email lookup inputs

Use the work email lookup API with a social profile URL, name and company, or profile context when your workflow only needs business email resolution.

Verification flow

Keep this endpoint separate from full enrichment when email append, deliverability review, or CRM field completion is the only required step.

Fallback path

Use Person Enrichment or Lookup Fields when the email result should be combined with broader identity, contact, or work-history data.

Parameters

name string optional
Full name.
company string optional
Employer - improves match accuracy.
company_domain string optional
Company domain (bare host).
phone string optional
Phone identifier.
social_media_url string optional
Profile URL. At least one identifier is required.
callback_url string optional
If set, the completed result is POSTed here when the job finishes. Must be a valid HTTP(S) URL on an allowed host when a callback allow-list is configured.

Retrieving the result

This endpoint is asynchronous. A successful submit returns a request_id while the job runs in the background. Poll the same path with a GET request - same authentication headers - passing the request_id as a query parameter:

Loading your API credentials...

Each poll returns the job's current status; once it is completed the payload carries the result shown under Responses. Polling an unknown or expired request_id returns 404 request_not_found.

Status Meaning
queued · processing · pending The job is still running - keep polling.
completed The job finished; the payload carries the result and completed: true.
failed Terminal - the job could not complete; the error field explains why.

Poll every few seconds at first, backing off for long-running jobs. Polling is free - status checks never burn credits.

Prefer push delivery?
Supply the optional callback_url parameter and the completed payload is POSTed to your endpoint when the job finishes - no polling required. Delivery is retried up to 5 times with exponential backoff (1s, 5s, 15s, 1m, 5m) and a 30-second timeout per attempt; respond with a 2xx status to acknowledge receipt.

Credit usage

Credits are charged based on the matched configuration. The listed cost is the per-result unit price.

Feature Credits Notes
Email Lookup 1 Charged on a found email
No match 0 Empty results never burn credits
Heads up
Empty results do not burn credits.

Responses

200 Status poll result - returns the current request status and result/error fields when available
202 Request queued - poll the status endpoint (or wait for the callback) with the returned request_id
400 Malformed JSON, missing required parameters, or an invalid field
401 Missing or invalid API credentials
402 insufficient_credits - not enough credits to complete the request
403 subscription_required or ip_not_allowed
404 request_not_found - no matching request is available for this API key
429 rate_limit_exceeded
503 service_unavailable - the API is temporarily unavailable

A successful response wraps the payload in the { success, data, timestamp } envelope (also shown live in the panel on the right):

{
  "success": true,
  "data": {
    "request_id": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4_1717000000_4271",
    "status": "completed",
    "completed": true,
    "result": {
      "best_work_email": "[email protected]"
    },
    "completed_on": "2026-01-15T10:31:00Z"
  },
  "timestamp": "2026-01-01T00:00:00"
}