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How-to guide

How to Enrich a List of LinkedIn URLs (in Python)

One Python script that reads URLs, calls the enrich endpoint, backs off on 429 and writes the results to a CSV.

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You can enrich a list of LinkedIn URLs in Python with one short script: read the URLs, call POST /v1/people/enrich for each, wait out any 429, and write the answers to a CSV. This guide gives you the script and explains each part.

TL;DR

  • One Python file, 32 lines, one dependency (requests). It reads urls.txt and writes people.csv.
  • Time: about 10 minutes to set up. At 4 requests a second, 1,000 URLs take at least 4 minutes.
  • Cost: 1 LeadOcean record per URL we hold a match for. A miss is a 404 and is free, so the Free plan's 1,000 records cover up to 1,000 matches.

Prerequisites

  • Python 3.9 or newer and pip install requests.
  • A LeadOcean API key, exported as $LEADOCEAN_API_KEY. The Free plan gives you one with 1,000 records for life, no card.
  • A urls.txt file with one LinkedIn profile URL per line.

Step 1: Get a key and prepare the list

Sign up at app.leadocean.io, create a key and put it in your shell. Never write the key into the source file.

bash
export LEADOCEAN_API_KEY="your-key-here"
printf '%s\n' \
  "https://www.linkedin.com/in/jane-doe-acme" \
  "https://www.linkedin.com/in/john-roe-acme" > urls.txt

The enrich endpoint takes exactly one identifier per call: linkedin_url, email, phone or person_id. Enrich does not page. You make one call per URL, so "paging" here means walking your file line by line.

Step 2: Write the script

Save this as enrich.py. Requests go to https://api.leadocean.io with the x-api-key header.

python
import csv, os, time, requests

URL = "https://api.leadocean.io/v1/people/enrich"
HEADERS = {"x-api-key": os.environ["LEADOCEAN_API_KEY"]}

def enrich(session, linkedin_url):
    for _ in range(5):
        try:
            res = session.post(URL, headers=HEADERS, timeout=30,
                json={"linkedin_url": linkedin_url, "reveal_email": True})
        except requests.RequestException:
            time.sleep(1)
            continue
        if res.status_code == 429:
            time.sleep(max(int(res.headers.get("Retry-After", 1)), 1))
            continue
        return res.status_code, res.text
    return 0, "gave up after 5 tries"

def main():
    with open("urls.txt") as f:
        urls = [line.strip() for line in f if line.strip()]
    with open("people.csv", "w", newline="") as out, requests.Session() as s:
        writer = csv.writer(out)
        writer.writerow(["linkedin_url", "status", "json"])
        for u in urls:
            status, body = enrich(s, u)
            writer.writerow([u, status, body])
            time.sleep(0.25)

if __name__ == "__main__":
    main()

Three choices in that file matter:

  • reveal_email: True returns the contact points on the record. It adds no extra record.
  • The 0.25 second pause keeps you at 4 requests a second, under the Free plan's limit of 5.
  • On a 429 the code reads Retry-After, sleeps that many seconds, and tries again, up to 5 times. See API rate limits and 429 errors.

Step 3: Run it

bash
python3 enrich.py
head -3 people.csv

The status column tells you what happened per URL: 200 is a match, 404 is nobody found. Filter on it before you load rows anywhere else.

Step 4: Parse the fields you need

The CSV stores the raw JSON so you lose nothing. When you know which fields you want, parse each row with json.loads. The current role is in contact_current_experiences[] and phones are in contact_phones[].phone. Since October 2026 the same call also returns career history in resume_data: past roles, education, certifications and awards.

python
import csv, json

with open("people.csv") as f:
    for row in csv.DictReader(f):
        if row["status"] == "200":
            person = json.loads(row["json"])["data"]
            contact = person.get("contact_data") or {}
            emails = contact.get("contact_emails") or [{}]
            print(person["profile_data"].get("profile_full_name"),
                  contact.get("email_status"), emails[0].get("email"))

Past employers carry no company_id yet. If you need a company record, call POST /v1/companies/enrich with the domain.

What you get

The response shape from the API reference, with placeholder values. This is not a real person.

json
{
  "success": true,
  "data": {
    "profile_data": { "profile_full_name": "Jane Doe", "profile_headline": "VP Sales at Acme" },
    "contact_data": {
      "has_email": true,
      "email_status": "verified",
      "contact_emails": [{ "email": "jane.doe@acme.com", "type": "work", "status": "verified" }],
      "contact_phones": [{ "phone": "+1 415 555 0133", "type": "mobile" }],
      "contact_current_experiences": [{ "job_title": "VP Sales", "company_name": "Acme" }]
    },
    "resume_data": { "experiences": [], "educations": [], "certifications": [] }
  },
  "meta": { "key_hash": "...", "fetched_at": "2026-10-01" }
}

Source: response shape from the API reference (openapi.json, October 2026), with field names from the enrich docs. Each record also carries a fetched_at date, and the dataset refreshes monthly.

Troubleshooting

ErrorCauseFix
401Missing or wrong x-api-key, or $LEADOCEAN_API_KEY is empty in this shellRe-export the key and check with echo ${#LEADOCEAN_API_KEY}
429You sent faster than the plan allows: 5 a second on Free, 200 on AgencyRaise the sleep, or rely on the Retry-After retry in the code
402The records are spent. Free is 1,000 for lifeStop the run and upgrade. Paid plans slow at their pace instead of returning 402
404No person matched that URL. It is freeKeep the row, mark it unmatched, move on
KeyError on startupLEADOCEAN_API_KEY is not set in the shell running PythonExport it in the same terminal, then rerun

FAQ

Can I run the calls in parallel?

Yes, with concurrent.futures.ThreadPoolExecutor and a shared rate limiter. Keep the total under your plan's per-account limit: 5 requests a second on Free, 50 on Solo, 200 on Agency. A single sequential loop is simpler, and on Free it is all the speed you can use.

Does a URL with no match use a record?

No. A person we hold nothing for is a 404 and costs nothing. Only a match returns a record.

Should I use GET or POST?

Both work on /v1/people/enrich. POST with a JSON body avoids URL-encoding the LinkedIn address.

What if I have tens of thousands of URLs?

Run the same loop in batches and write each batch to its own file. Solo allows 10k enrichments every 5 hours and Agency 1M a day. Paid plans have a fair-use pace instead of credits, and reaching it slows the key rather than stopping it.

Is there a bulk option?

Not for a list of URLs. Enrich is one person per call. POST /v1/exports exports an audience built from search filters, up to 50,000 rows a request and 500,000 a day. Bulk CSV export is not on Free; it starts on Solo at $97 a month.

See the same recipe in Go, C# and TypeScript. The rest of the series is in the blog hub.

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