Instruments About Pricing Contact

REST API

HTTP endpoints, auth, quotas, and examples.

WebSocket API

Streams, command frames, and event schemas.

Log in Get access

SPX/USD

MarketSynthetic

KindSpot

Bid0.3738

Ask0.3742

Last0.3727

24h-454.73%

Spread0.0004

UpdatedOct 22, 2026, 4:06:06 AM

Loading chart...

flowsig.io

© 2026 flowsig.io real time market data provider.

About Docs Instruments Pricing Contact Legal Privacy