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WattTime API
Grid emissions data.
| Category | Energy & Climate |
|---|---|
| Authentication | API key |
| Pricing | Free |
| Website | https://www.watttime.org/ |
| Docs | https://docs.watttime.org/ |
| Last checked | 2026-10-14 |
| As JSON | /api/v1/directory/watttime-api.json |
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