FX API

FX Market Data API

Add daily exchange rates to cross-market comparisons, macro factors and Chinese yuan risk analysis through the same data interface.

Create a free API key View endpoint documentation

Core coverage

Retrieve daily prices for major currency pairs

Research use

Add FX variables to cross-market research

Extended capability

Use one interface alongside stocks, indices and flows

REST API

Start querying with one request

Every endpoint uses consistent authentication, security symbols, and JSON responses. The same API key works with Python SDK, MCP, and REST API.

curl "https://quantsonar.com/v1/fx/daily?symbol=USDCNH.FXCM&start_date=20260101" \
  -H "X-API-Key: qs_your_key"

AVAILABLE DATA

FX endpoints

FREEFX daily bars (default USDCNH)/v1/fx/daily

EXPLORE THE DATA ATLAS

Combine more research data

Explore prices, ETFs, financials, flows, indices, and realtime information, then combine results through consistent public fields. Review pricing and rate limits before choosing a plan.

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