Markets & Trading
Massive
Formerly Polygon.io
Market-data APIs for stocks, options and other asset classes; formerly Polygon.io.
View official source ↗THE PROVIDER BRIEF
Fit and tradeoffs
Who it serves
Developers and financial-data teams
What to check
Choose the correct asset, real-time/delayed feed and business redistribution license; this is data infrastructure, not a trading strategy.
Source status
Description checked against linked vendor documentation. Reviewed 2026-10-29. No independent product or performance test.
Latency
Not measured. No cross-provider latency ranking is published.
COMMERCIAL CHECKS
Pricing and terms
Asset-class and business plans; verify current amount
- Plan
- Not established
- Region
- Confirm your deployment country
- Billing
- Confirm with provider
- Price review
- 2026-10-29
- Evidence
- Page reviewed; amount unverified
Dynamic base-plan amounts were not available in the reviewed page text; business data rights differ.
Pricing / vendor source ↗DUE DILIGENCE
Compliance evidence
These are evidence statuses, not certification badges. Request the current report or attestation, confirm the entity, service scope, period and your responsibilities. API availability is a product capability, not a compliance standard.
Scoped report not reviewed
Applicable validation not reviewed
Deployment-specific assessment required