Finance — entry 026 of 47
Intrinio
Intrinio is a sales-led financial-data provider offering realtime and 50+ years of historical stock prices, options with Greeks, standardized and as-reported fundamentals, analyst estimates, and ETF/corporate-actions data via API, WebSocket, CSV, and cloud-platform delivery (Snowflake, S3). It carries no free production tier: plans run from $150/month (Individual) through $333+/month (Startup, with phased pricing) to $1,250+/month (Enterprise, custom terms), each with a free trial to evaluate the data first.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingPaidSubscription required — no meaningful free tier.
FormatsJSON, CSV, WebSocketResponses can be requested as JSON or CSV or WebSocket.
GreatAPIs Score
Score59
Authentication15/25API key required
Pricing9/20Paid API
Docs0/20No docs or spec available
Formats15/15Supports 3 response formats
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/intrinio/"><img src="https://greatapis.com/badge/intrinio.svg" alt="Scored 59 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.