Element Facts
Use this API for lightweight periodic-table facts without maintaining your own element reference table. It exposes normalized JSON endpoints with practical filters, source metadata, and lightweight reference tables so developers can add lookup and discovery features without maintaining their own scraper or curation pipeline.
1 subscribers
8.6/10 popularity
72 ms avg latency
100% success rate
2 endpoints
The in-depth APIMemo review for this API hasn't been published yet —
the data below comes straight from the public marketplace listing.
Element Facts endpoints
| Method | Endpoint | Description |
|---|---|---|
| elementfacts | ||
| GET |
/api/elementfacts/blocks /api/elementfacts/blocks |
List known periodic table blocks. |
| GET |
/api/elementfacts/elements /api/elementfacts/elements |
List elements or filter by symbol, name, block, phase, or atomic number. |
Element Facts pricing
| Plan | Price | Rate limit | Quotas |
|---|---|---|---|
| BASIC | Free | — |
|
| PRO | $9 / month | — |
|
| ULTRA | $29 / month | — |
|
