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Alpaca

api:docs.alpaca.markets/us/docs/about-market-data-api · source: public-apis

Realtime and historical market data on all US equities and ETFs

APIAPI keyFinance

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Last check

Website answers · checked 2026-10-17

Test & rating

B 75/100

What it does: Finance · auth: api_key

How the rating is made
  • Website answers: +40
  • OpenAPI spec: 0
  • Auth effort: +10
  • HTTPS: +10
  • CORS: +5
  • Description: +10

Rated 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call; APIs are not called, so B is their best grade.

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