Find every free data source a developer could use to build a dividend calendar app — ex-dividend dates, pay dates, amounts, yields and payout history — covering free APIs, public datasets and free tiers of paid APIs, with each source's name, URL, coverage (US or global), update frequency, free-tier rate limits, and attribution or commercial-use restrictions.
A broad live-web scan on 14 October 2026 produced 75 recurring, developer-usable sources across 44 independent hosts (no URL backs more than 2 rows) — a best-effort exhaustive catalog, not proof that no obscure source exists. Of the 75, 44 document a numeric free-tier limit, 29 state an update cadence, 33 state explicit terms, and 18 rely on unofficial or scraped feeds (mostly Yahoo or Nasdaq endpoints).
One row per source, sorted by how much a row documents: five dividend fields (green when the source states the field) and three due-diligence constraints (blue: update cadence stated; grey: a numeric free limit stated; orange: explicit attribution or commercial-use terms). An empty cell means no reliable statement was found — not that a limit or restriction is absent. Hover a row for its full details.
All 75 sources with the requested columns. The table follows the filters above. Blank cells mean no reliable statement was found.
| Source | Type | Coverage | Dividend fields | Update frequency | Free-tier limits | Restrictions |
|---|
Method: 75 developer-usable dividend data sources collected in a broad live-web scan on 2026-10-14, one row per normalized source, spanning 44 independent hosts (max 2 rows per URL). Excluded: single-company datasets, end-user-only sites without machine-readable access, trial-only offers, and price-only adjusters. Matrix dots mark whether a row's own text documents a field or constraint; an empty cell means no reliable statement was found, not that none exists. Long field, limit and restriction texts are truncated in the table; hover the matrix for full text. "Free" never implies commercial redistribution rights.