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Data Enrichment API | B2B Data API for Product Builders | Captain Data

Data enrichment API for product builders

Q: What is data enrichment?

Data enrichment is the process of enhancing your existing data with additional information from external sources. This includes adding verified emails, phone numbers, job titles, company information, and other valuable data points to profiles and company records.

Q: How does Captain Data enrich profiles?

Captain Data enriches profiles in real-time by cross-referencing multiple data sources. Simply provide a LinkedIn URL, email, or company domain via our API, and we return comprehensive profile data including verified contact information, work history, skills, and company details.

Q: What data points can I enrich?

You can enrich both people and company profiles. For people: name, title, email, phone, work history, education, skills, LinkedIn data. For companies: size, industry, funding, headquarters, tech stack, key decision-makers, and more.

Q: How accurate is the enriched data?

Captain Data maintains 95%+ accuracy across enrichment endpoints. For email data specifically, we verify deliverability to ensure you're reaching real inboxes. Our real-time approach means data is always current.

Q: How do I integrate data enrichment into my applications?

Captain Data provides a RESTful API that you can integrate into any application or workflow. Simply call our enrichment endpoints with your API key to enrich leads programmatically. Our comprehensive documentation includes code examples for popular programming languages.

Q: How does the pricing work for data enrichment?

Data enrichment uses a credit-based system. Basic profile enrichment costs 1 credit, with additional credits for premium data like verified emails (+1 credit) and phone numbers (+2 credits). Unused credits do not roll over month to month. On annual billing, we can unlock your full yearly credit pool upfront.

Enhance your application data with rich profile information, company insights, and verified contact data. Reliable, high-quality B2B people & company data at scale through a simple RESTful API.

✓Real-time data enrichment from 750M+ profiles
✓99% uptime, <500ms average response time
✓Complete company firmographics and org charts
✓Ship in hours, not weeks

750M+

Profiles

95%+

Accuracy

Start Free Trial See API Docs

POST /v1/people/enrich200

# enrich a known profile
$ curl api.captaindata.com/v1/people/enrich \
  -H "X-API-KEY: $CD_KEY" \
  -d li_profile_url=…/in/janedoe

# → 200 OK · fields enriched
{
  "uid": "per_8f21e0c934",
  "full_name": "Jane Doe",
  "headline": "VP Engineering at Acme Inc",
  "job_title": "VP Engineering",
  "location": "Austin, Texas, US",
  "li_profile_url": "linkedin.com/in/janedoe",
  "company_name": "Acme Inc",
  "skills": [{ "name": "Distributed Systems" }]
}

§ 01 · HOW IT WORKS — from URL to structured JSON

Send a LinkedIn URL

Pass a person's profile URL or a company's LinkedIn or domain URL to the enrich endpoint, with your X-API-KEY.

We cross-reference sources

Captain Data resolves the record in real time against multiple data sources — never a cached snapshot.

Get structured JSON back

A clean, typed response lands in real time, ready to write into your CRM, warehouse, or app.

§ 02 · WHY ENRICH WITH CAPTAIN DATA — real-time, verified, developer-first

Real-time enrichment

Provide a LinkedIn profile or company URL and get back comprehensive data cross-referenced across multiple sources — never a stale snapshot.

95%+ accuracy

Maintained across enrichment endpoints, with fresh headline, role, and company data on every call.

One REST call

Integrate into any app or workflow with a single X-API-KEY header. Docs ship with code examples for popular languages.

Credit-based pricing

Most operations cost 1 credit per record enriched. No per-field add-ons — one flat rate, whatever fields come back.

§ 03 · WHAT YOU CAN ENRICH — people & company data points

People

Turn a LinkedIn profile URL into a complete professional profile.

fieldsfull_name · headline · job_title · location · experiences · education · skills · li_number_connections

Companies

Resolve a domain or LinkedIn company URL into full firmographics and org context.

fieldsindustry · number_employees · headquarters · specialties · last_funding_type · affiliates

§ 04 · USE CASES — where teams put enrichment to work

Enrichment pairs naturally with data extraction — extract a list of matching records, then enrich each one for a complete profile.

04 · Acrm

CRM enrichment

Backfill missing job titles, company data, and headcount on every record that lands in your CRM.

04 · Bscoring

Lead scoring & routing

Enrich inbound leads the moment they convert, so scoring and routing rules see real firmographic data.

04 · Coutbound

Sales prospecting

Turn a name or LinkedIn URL into a full profile before outreach — no manual lookups.

04 · Dtalent

Recruiting pipelines

Enrich candidate LinkedIn profiles with role history and education to speed up screening.

§ 05 · FAQ — data enrichment

QWhat is data enrichment?+

Data enrichment is the process of enhancing your existing data with additional information from external sources. This includes adding verified emails, phone numbers, job titles, company information, and other valuable data points to profiles and company records.

QHow does Captain Data enrich profiles?+

Captain Data enriches profiles in real-time by cross-referencing multiple data sources. Simply provide a LinkedIn URL, email, or company domain via our API, and we return comprehensive profile data including verified contact information, work history, skills, and company details.

QWhat data points can I enrich?+

You can enrich both people and company profiles. For people: name, title, email, phone, work history, education, skills, LinkedIn data. For companies: size, industry, funding, headquarters, tech stack, key decision-makers, and more.

QHow accurate is the enriched data?+

Captain Data maintains 95%+ accuracy across enrichment endpoints. For email data specifically, we verify deliverability to ensure you're reaching real inboxes. Our real-time approach means data is always current.

QHow do I integrate data enrichment into my applications?+

Captain Data provides a RESTful API that you can integrate into any application or workflow. Simply call our enrichment endpoints with your API key to enrich leads programmatically. Our comprehensive documentation includes code examples for popular programming languages.

QHow does the pricing work for data enrichment?+

Data enrichment uses a credit-based system. Basic profile enrichment costs 1 credit, with additional credits for premium data like verified emails (+1 credit) and phone numbers (+2 credits). Unused credits do not roll over month to month. On annual billing, we can unlock your full yearly credit pool upfront.

Enrich your first record today.

Grab an API key in 30 seconds and enrich people and companies in real time. No credit card, 100-credit free trial.

Start free Try the API