LinkedIn email finder API
Search public profiles, get verified work emails back. Never a guess.
How does it work?
One GET request. No LinkedIn account, no cookies, no browser plugin. CrustAPI reads the public pages a signed-out visitor sees, then finds and checks a work email for the people it returns. People search is in beta.
1. Search people (beta)
Call /v1/linkedin?type=search with keywords, like a job title plus an industry. It reads public, logged-out LinkedIn data, so no account of yours is at risk.
2. We find and check the email
For each person, we look for a work address and test that it can actually receive mail. Addresses that fail the check are dropped, and the field returns null.
3. Clean JSON out
Each row carries name, headline, title, company, location, profile URL, and the verified email when one exists. It drops straight into Sheets, Clay, or a CRM.
4. Billed only on results
You are charged when a query returns results. A query that returns nothing is free, and unused paid funds never expire.
What data do you get?
Here is the request and the same sample rows shown two ways, CSV first and JSON below. The people are masked to protect real humans: first name plus last initial, starred profile URLs and domains. The shape is what the API returns.
The second row is the catch. No address passed verification for that person, so email is null and the profile data still comes back. Parameter reference lives at /docs#linkedin.
How do you get started?
No code needed. From zero to verified addresses in about two minutes:
- 1
Create a free account. Try it free, no card needed.
- 2
Type a search in the playground. Something like head of marketing saas. People land in a table.
- 3
Export the CSV, or copy your key and run the curl above. Same data, JSON or rows.
Why are some emails null?
Not every profile produces an email. Some companies block verification checks, some people have no work address we can find, and some domains accept everything, which makes a real check impossible. When that happens we return null instead of a guess.
This is by design. A bounced email hurts your sender reputation, and enough bounces can get your domain flagged. Every address this finder returns has passed a live check first.
The CAN-SPAM part
In the United States, the CAN-SPAM Act allows cold business email without prior permission, as long as you follow its rules:
- Say who you are. No fake names, no misleading from lines, no tricky subject lines.
- Include your real postal address in every message.
- Give a clear way to opt out and honor it within 10 business days.
- Stop mailing anyone who opts out. No exceptions.
Outside the US the bar is higher. Canada's CASL and Europe's GDPR and ePrivacy rules usually require consent or a documented legal basis. This is a plain summary, not legal advice. Check the rules where your recipients live.
How much does it cost?
Every account gets Free to try, no card. Work email lookup is included in a successful profile request. Email availability varies. Current endpoint prices are below:
| Deposit | Google Search / 1,000 requests | Maps / 1,000 businesses | LinkedIn reads / 1,000 requests | People, Jobs, Refresh / 1,000 units |
|---|---|---|---|---|
| $10+ | $1.00 | $1.96 | $6.00 | $1.96 |
| $149+ | $0.76 | $1.49 | $4.50 | $1.49 |
| $549+ | $0.56 | $1.10 | $3.30 | $1.10 |
| $1,999+ | $0.41 | $0.80 | $2.45 | $0.80 |
| $6,500+ | $0.33 | $0.65 | $1.95 | $0.65 |
| $27,500+ | $0.28 | $0.55 | $1.65 | $0.55 |
| $50,000+ | $0.26 | $0.50 | $1.50 | $0.50 |
| $100,000+ | $0.20 | $0.40 | $1.50 | $0.40 |
Every eligible account gets $6 of free usage monthly. Each deposit keeps its prices until spent; paid funds never expire. People and Jobs bill per successful search, Refresh per accessible profile. Full profiles in People use the read rate per full profile. See all billing details.
Larger deposits unlock lower endpoint prices. Each deposit keeps its prices until spent. See the full deposit table on the pricing page. Prices in USD, ex-tax.
Packs are prepaid and self-serve, and paid funds never expire. A pack you buy for one campaign waits for the next one.
Who uses this finder?
- SDRs and growth teams. Search title plus industry, export verified addresses, and load the sequencer you already use.
- Recruiters. Find people by role and reach them at a work address that actually receives mail.
- Clay and n8n builders. Drop the endpoint into a table column and enrich rows as they arrive.
- Founders. The free plan covers early outreach without another subscription.
The same key runs the rest of the LinkedIn set: people search (beta) · full profiles · companies, plus 12 live Google search types like Maps business data. Wondering how logged-out LinkedIn data works? Read how we scrape LinkedIn without a login. Migrating from a retired provider? See the Proxycurl comparison.
When another tool is the better pick: if you want a full prospecting app with a browser extension, a built-in contact database, and a sequencer to send from, Apollo and Hunter are built for exactly that. CrustAPI is the API layer: you bring the workflow, we return the data, and you keep every row.
CrustAPI is a one-person company. If a response ever looks wrong, email support@crustapi.com and Dawson, the person who built it, will answer.
Common questions
No, and any tool that says otherwise is guessing. We return an address only after it passes a live verification check. Rows where no address verifies still return the profile data, with null in the email field. Coverage varies by company and industry, so run a real search on the free tier and see what your market returns.
Before an address is returned, we test that it can actually receive mail. If the check fails, or the domain accepts everything so a real check is impossible, the email field comes back null. You are never handed a guessed address labeled as real.
In the US, the CAN-SPAM Act allows cold business email if you use truthful from and subject lines, include your postal address, offer a working opt-out, and honor it within 10 business days. Canada and Europe are stricter and usually require consent or a documented legal basis. This is a summary, and it is not legal advice.
No. Maps records carry business name, address, phone, website, rating, review count, categories, and hours. There is no email field on Maps. Verified emails come from the LinkedIn people endpoints only.
Maps costs $1.96 per 1,000 businesses at standard prices, down to $0.40 for the largest deposit. Empty and failed searches are free. Every eligible account gets $6 of free usage monthly. Paid funds never expire.
Yes. The playground at /app runs searches from your browser with no code. The API also plugs into Clay, n8n, LangChain, CrewAI, and MCP clients like Claude, so it fits whatever workflow you already run.
Clay
Point it at your real market
Search the titles you actually sell to. The free tier covers a real test, and the JSON decides, this page does not.
Try for free