New Playbook: Cold Email Infrastructure Setup Guide
Read Now arrow_forwardSend a first name, a last name and a company domain. Get back the address that the company's mail server actually accepts, already verified, in one JSON response. Charged only when an address is returned. 100 free credits a day.
Used by 1,000+ sales, recruiting and marketing teams
Find one person or a whole list, and verify any address you already hold, all with the same Bearer key and the same JSON shape.
POST /email/findEmail with first_name, last_name and domain. The response carries the address, its status and a confidence score.
Get a key and try it arrow_forwardPOST /email/findBulkEmail with an array of people. One request, one array back, each item with its own address and status. Built for enrichment jobs.
Get a key and try itPOST /email/verifyEmail for the addresses that came from somewhere else. One credit each, same key, same response shape.
View API docs arrow_forwardA name and a domain are not an address. The finder builds the candidate patterns a company might use, tests them against the company's mail server, and returns the one that is accepted, so you get a deliverable address and not a guess.
first.last, flast, first_last and the rest, ordered by how often companies use them.
Confirms the domain receives mail at all. No mail server means an immediate empty result and no charge.
Each candidate is checked against the mail server until one is accepted. Nothing is delivered.
The accepted address, Valid or Unknown, and a confidence score, in the JSON you already parse.
The docs page carries cURL, JavaScript and Python for every endpoint. A single find is three steps.
Authenticate
Authorization: Bearer YOUR_API_KEY. Keys live under Account and API in the dashboard.
Send the person
POST https://server.mailsfinder.com/api/access-key/email/findEmail with {"first_name": "Jane", "last_name": "Doe", "domain": "stripe.com"}.
Read the result
A 200 returns email, status, confidence, domain and time. Empty email means nothing at that domain accepted a pattern for the name, and no credits were charged.
Turn a Sales Navigator export or a Clay table into addresses without a Chrome extension in the loop.
Fill in candidate emails from name and current employer, in the ATS, at the moment a profile is added.
Waterfall Mailsfinder in with your other providers and pay only for the hits, because misses cost nothing.
Run every client list through findBulkEmail overnight and hand back verified addresses in the morning.
Get your API key in the dashboard, run your first find in a few minutes, and pay $9.99 a month for 300,000 credits when you outgrow the free 100 a day.
