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Documentation Index

Fetch the complete documentation index at: https://docs.sixtyfour.ai/llms.txt

Use this file to discover all available pages before exploring further.

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Use case

Discover professional or personal email addresses for leads for sales outreach, CRM enrichment, or lead qualification.

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Endpoint

POST https://api.sixtyfour.ai/find-email

API Reference

See the full request/response schema and parameters in the API Reference.

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Pricing

See Credits & Pricing Guide for credit costs.

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Errors

For error responses (400, 403, 422, etc.), see Handling Errors.

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Email modes

The mode parameter controls which type of email the API returns. Defaults to Professional if omitted.
ModeDescriptionReturned in
Professional (default)Discovers company emails tied to the lead’s employer domain.email field
PersonalDiscovers personal emails (e.g., Gmail, Yahoo). The email field still returns the company email when found.personal_email field
If the input lead already includes an email field, the API returns it unchanged with appropriate status and type. In Personal mode, if the existing email is a personal email, the API returns immediately without additional processing or cost.

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Response format

The email and personal_email fields contain a list of tuples. Each tuple consists of:
  • Email address (string)
  • Validation status (string, always uppercase):
    • OK — The email address has been validated and is likely deliverable.
    • UNKNOWN — Validation was inconclusive — typically because the domain is a catch-all.
    • NOT_FOUND — No email could be discovered for this lead.
  • Email type (string, always uppercase):
    • COMPANY — Tied to the company domain.
    • PERSONAL — A personal email address (e.g., Gmail, Yahoo).

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Example usage

curl -X POST "https://api.sixtyfour.ai/find-email" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "lead": {
      "name": "Sarah Chen",
      "company": "Pacific View Studios",
      "title": "Creative Director & Lead Photographer",
      "linkedin": "https://www.linkedin.com/in/sarah-chen-photography"
    },
    "mode": "PERSONAL"
  }'