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Apollo.io API
B2B contact data and sales engagement.
| Category | Lead Enrichment & Outreach |
|---|---|
| Authentication | API key |
| Pricing | Free tier |
| Website | https://www.apollo.io/ |
| Docs | https://docs.apollo.io/ |
| Last checked | 2026-10-14 |
| As JSON | /api/v1/directory/apolloio-api.json |
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