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1

Get your API key

Sign up at companies.social and create an API key from the dashboard. Keys are prefixed with ck_.
2

Make a request

Look up any company by domain:
curl -H "x-api-key: ck_your_key" \
  https://api.companies.social/domain/stripe.com
3

Get the social graph

The API returns every linked social profile:
{
  "companyId": "stripe_com",
  "domain": "stripe.com",
  "socials": {
    "twitter": "https://x.com/stripe",
    "linkedin": "https://linkedin.com/company/stripe",
    "github": "https://github.com/stripe"
  },
  "scrapedAt": "2026-03-01T12:00:00.000Z",
  "cached": false
}

​
Look up by any identifier

You’re not limited to domains. Query by any supported platform: 
# By Twitter handle
curl -H "x-api-key: ck_your_key" \
  https://api.companies.social/twitter/stripe

# By LinkedIn
curl -H "x-api-key: ck_your_key" \
  https://api.companies.social/linkedin/stripe

# By GitHub org
curl -H "x-api-key: ck_your_key" \
  https://api.companies.social/github/stripe
See supported platforms for which identifiers support active vs. passive lookup.