FCS Crypto API Documentation: Real-Time Cryptocurrency Data Access

Overview

The FCS Crypto API provides comprehensive real-time and historical cryptocurrency market data, supporting over 1,500 cryptocurrencies and 5,000+ trading pairs. Integrated with 35+ global exchanges, this API delivers:

Real-time price updates (refresh rate: 20-60 seconds)
Historical market data (from 1-minute to monthly timeframes)
Technical analysis tools (moving averages, pivot points, RSI)
Market cap and supply metrics
Currency conversion functionality

👉 Explore live crypto data now

API Core Features

1. Real-Time Price Data

Latest bid/ask prices for all supported pairs
24-hour high/low/volume metrics
Batch requests for multiple currencies

Example Request:

https://fcsapi.com/api-v3/crypto/latest?symbol=BTC/USD,ETH/USD&access_key=API_KEY

2. Historical Market Data

Access candle-stick data (OHLCV)
Timeframes from 1 minute to 1 month
Up to 900 data points per request

Timeframe Options:

Period	Description
1m	1-minute candles
1h	Hourly data
1d	Daily aggregates
1w	Weekly summaries

3. Technical Indicators

14+ indicators including:
- Moving Averages (SMA/EMA)
- RSI (14-period)
- MACD (12/26)
- Stochastic Oscillator

👉 Get advanced market signals

Getting Started

Authentication

Register for an API key
Include access_key parameter in all requests

Base Endpoint:

https://fcsapi.com/api-v3/crypto/YOUR-FUNCTION?access_key=API_KEY

Rate Limits

Free plan: 500 requests/month
Standard: 10 requests/minute/IP
Enterprise: Customizable tiers

Key Endpoints

1. Symbol Listing

https://fcsapi.com/api-v3/crypto/list?type=crypto&access_key=API_KEY

Response Includes:

Coin IDs
Full names
Trading pairs
Decimal precision

2. Currency Conversion

https://fcsapi.com/api-v3/crypto/converter?pair1=BTC&pair2=USD&amount=1&access_key=API_KEY

3. Market Cap Data (CoinMarketCap-style)

https://fcsapi.com/api-v3/crypto/cross?symbol=BTC&convert=USD&access_key=API_KEY

Metrics Returned:

Circulating supply
Total/max supply
24h trading volume
Price change percentages

Advanced Features

Technical Analysis Suite

Indicator	Endpoint	Use Case
Pivot Points	`/pivot_points`	Support/resistance levels
Moving Averages	`/ma_avg`	Trend identification
RSI/Stochastic	`/indicators`	Overbought/oversold signals

Example:

https://fcsapi.com/api-v3/crypto/indicators?symbol=BTC/USD&period=1d&access_key=API_KEY

FAQ Section

Q: How frequently is price data updated?

A: Real-time prices refresh every 20-60 seconds depending on market volatility.

Q: Can I request historical data for multiple coins simultaneously?

A: Yes, use the /multi_url endpoint to batch requests efficiently.

Q: What's the maximum historical depth available?

A: Most pairs support data back to 2015 with 900 data points per request.

Q: How accurate are the technical indicators?

A: Signals are calculated using standardized formulas with 99.9% uptime.

Q: Is there a free trial available?

A: Yes, the free plan includes 500 monthly requests with full functionality.

Best Practices

Optimize Requests
- Use batch endpoints (/list, /latest) instead of individual calls
- Set appropriate period parameters to reduce data volume
Handle Rate Limits
- Implement request queuing
- Cache frequently-used data
Data Interpretation
- Always verify status: true in responses
- Check server_time for data freshness

👉 Start building with our API today

Disclaimer

Market data is provided for informational purposes only. FCS API doesn't guarantee real-time accuracy or endorse any trading strategy. Always verify critical data points before making financial decisions.