RSI API — Relative Strength Index via REST, Live
One GET request returns the current RSI value, signal classification, and OHLC context. Pre-calculated across 7 timeframes. No compute overhead on your end.
No credit card. $2.50 PAYG credit on sign up.
What is the RSI API?
The Relative Strength Index (RSI) measures price momentum on a 0–100 scale. Values above 70 signal overbought conditions; below 30 signals oversold. Our API pre-calculates RSI(14) from live broker terminal data so your app or bot gets the answer — not the raw candles to compute it from.
One Request. Instant Data.
curl -X GET \
"https://tickatlas.com/v1/indicator?symbol=EURUSD&indicator=RSI_14&timeframe=H1" \
-H "X-API-Key: YOUR_API_KEY"import requests
response = requests.get(
"https://tickatlas.com/v1/indicator",
headers={"X-API-Key": "YOUR_API_KEY"},
params={
"symbol": "EURUSD",
"indicator": "RSI_14",
"timeframe": "H1"
}
)
data = response.json()
rsi = data["value"]
print(f"EURUSD RSI(14) on H1: {rsi:.2f}")
# Simple overbought/oversold logic
if rsi > 70:
print("RSI overbought — potential reversal zone")
elif rsi < 30:
print("RSI oversold — potential reversal zone")Why Use TickAtlas?
Pre-Calculated, Sub-100ms
Indicator values are computed server-side on every new candle. Your app queries the result — no TA library, no candle history needed.
7 Timeframes
M1, M5, M15, M30, H1, H4, D1 — the same endpoint serves scalpers and position traders alike.
Forex, Crypto, Commodities
EURUSD, GBPUSD, XAUUSD, BTCUSD, USDJPY — data available for all symbols active on connected broker terminals.
Plug into any stack
- ChatGPT Custom GPTs
- Claude Tools
- Python / pandas
- Node.js
- Discord bots
- Slack webhooks
- n8n
- Zapier
- Google Sheets
Frequently Asked Questions
Does the RSI endpoint return historical values?
Yes — use GET /v1/indicator/history with indicator=RSI_14 to retrieve a time series. Starter plan: up to 30 days on H1+. Pro/Enterprise: up to 45 days. M1/M5 have shorter retention windows.
What period does the RSI use?
We calculate RSI with a 14-period lookback (RSI_14), matching the industry default. The calculation uses Wilder's smoothing method on broker terminal candle data.
How often is the RSI updated?
The cache refreshes every 2 seconds when markets are open. On new bar close events, the RSI is recalculated immediately.
Can I use this in a ChatGPT Custom GPT?
Yes. Add the /v1/indicator endpoint as a Custom Action using our OpenAPI schema. Your GPT can then query live RSI values for any symbol.
Which symbols support RSI?
All symbols active on connected broker terminals — typically 50+ Forex pairs (EURUSD, GBPUSD, USDJPY...), XAUUSD (gold), XAGUSD (silver), and select crypto and indices. Use GET /v1/symbols to see the current list.
Start Reading RSI Values in 5 Minutes
Sign up, grab your API key, make your first request.
Every new account gets $2.50 in free PAYG credits. No card required.