Private API Access is restricted to PRO Subscribers. Some endpoints may require priority keys. Upgrade to PRO

API Access & Documentation

Build your own tools, bots, and dashboards using Bitcoin CounterFlow's proprietary data engine. Our REST API provides institutional-grade analytics for retail developers.

Your API Key

Standard Usage

GET /api/endpoint?apikey=YOUR_KEY

Pass your API key as a query parameter for all protected requests. Rate limits apply based on your current subscription tier.

API Usage Policy

Market Data

/api/bitcoin-performanceGET

Returns Bitcoin historical performance data relative to other assets.

days (number)interval (string)

/api/bitcoin-indicatorsGET

Returns aggregated Bitcoin market indicators.

days interval

/api/dca-calculatorGET

Returns data specifically formatted for the DCA simulation tool.

currency (USD|BRL|EUR)

Derivatives & Flows

/api/open-interestGET

Current aggregate Open Interest across major exchanges.

exchange (string)symbol (string)

/api/funding-rateGET

Historic global funding rates for Bitcoin perpetual swaps.

days interval

/api/liquidationsGET

Real-time and historic liquidation data.

interval side (long|short)

Macro & On-chain

/api/m2-globalGET

Global M2 liquidity metrics and correlation to BTC.

/api/etf-dataGET

Aggregate Bitcoin Spot ETF inflows/outflows data.

days

/api/nuplGET

Net Unrealized Profit/Loss (on-chain metric).

days