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OpenCitations
Open citation data.
| Category | Academic & Research |
|---|---|
| Authentication | No auth |
| Pricing | Free |
| Website | https://opencitations.net/ |
| Docs | https://opencitations.net/index/api/v2 |
| Last checked | 2026-10-14 |
| As JSON | /api/v1/directory/opencitations.json |
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