EtherCalc

Self-hostable collaborative web spreadsheet with a REST API for reading and writing cells and sheets.

Visit EtherCalc Docs

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Category	Spreadsheet APIs
Authentication	No auth
Pricing	Free
Source	Open Source
Website	https://github.com/audreyt/ethercalc
Docs	https://github.com/audreyt/ethercalc
Last checked	2026-10-14
As JSON	/api/v1/directory/ethercalc.json