Reverse Lookups

Reverse Email Lookup

The Reverse Email Lookup API resolves an email address into a complete business profile, including full name, job title, seniority, company, LinkedIn URL, firmographic data, and any other email addresses on file.

It supports single lookups (email) and batch lookups of up to 100 addresses at once (emails). Each address in a batch counts as one request against your Fair Use requests limit.

Use this endpoint to:

  • Enrich inbound leads and form fills with full contact context
  • Qualify a prospect before you reach out
  • Fill in missing profile data on an existing email list

Fair Use Policy: This API is subject to our <a href="https://moltsets.com/fair-use-policy-enrichment/" target="_blank" rel="noopener">Fair Use Policy for Enrichment</a>.

Outcomes: A lookup that finds nothing is not an error. It returns HTTP 200 with status: "not_found", empty or null results, and the usual metadata — and costs no tokens, though it still counts as one request against your Fair Use requests limit. Read status, not the HTTP code, to tell a hit from a miss. The API's only 404 is an unknown or retired tool name.

post/reverse_email_lookup

Request

  • Base URL: https://api.moltsets.com/api/v1/tools
  • URL: https://api.moltsets.com/api/v1/tools/reverse_email_lookup
  • Auth: HTTP bearer

Headers

User-Agentstring required

Identifies the calling client. Any non-empty value is accepted — MoltSets does not validate its contents. Requests without this header are rejected with 403 Forbidden (error.code: forbidden).

Request body

emailstring

Single email address.

emailsstring[]

Batch of email addresses, up to 100. Can't be combined with email.

Response

Success

Changes

No recorded changes to this operation across all 1 revision of this API.