Pick a pair
Choose from the ranked catalogue or type any two tickers — /add STRK ATOM 15m. No account, no keys.
Pairs / ratio trading signals
Trade the ratio,
not the chart.
PairSignal watches the ratio R = A / B between any two coins and pings you the moment it crosses its statistical bands — entry and exit, on Telegram and email. No keys. No custody.
$1per pair / day
0API keys needed
3 daysfree trial
Live pairs
Ranked by signal
strength, not hype.
Pairs are scored on the statistical strength of their ratio (t-stat), with a liquidity floor — so alerts come from real, tradeable relationships.
Pair (A / B)R nowSignalStrength
STRK / ATOM0.0191Entry ▲t = 4.2
SOL / AVAX2.84Exit ▼t = 3.8
ARB / OP0.61Insidet = 3.1
INJ / TIA1.92Entry ▲t = 2.9
Illustrative. Live catalogue available in the bot.
Ratio screening & ranking powered by Pairscan.io — the world's #1 pair-ratio screener.
How it works
Three steps to
your first signal.
We watch the ratio
PairSignal computes R = A/B every minute and tracks its percentile bands on public market data only.
Get the alert
The instant R crosses a band, you get an entry or exit alert on Telegram and email — once per crossing, no spam.
Why custody-free
Your keys stay
yours. Always.
PairSignal never asks for an exchange API key, never touches a balance, never places an order. It reads public price data and tells you when to look — the trade is yours to make.
- Zero API keys — nothing to leak or revoke
- Zero custody — we can't move your funds
- Public OHLCV only — same data anyone can pull
- Edge-triggered — one alert per band crossing, not per tick
Pricing
One price. No surprises.
Pay only for the pairs you watch, only for the days you watch them. Top up with crypto — no subscriptions, no auto-charges.
$1/ pair / day
- 3-day free trial on your first pair
- Credits in days — burn 1/day per active pair
- Run dry? Pairs auto-pause, nothing lost
- Top up anytime with crypto via Heleket
- Telegram + email alerts included
Developer API
Build on the ratio engine.
The same signals, backtests and screener that power our alerts — now as a clean REST API. Build bots, dashboards and your own alerting on top of it. Custody-free, public data only.
Live signals
Current ratio R and its percentile bands for any pair — know the entry and exit zones in real time.
Backtests
Replay the entry→exit cycle over history and get win-rate, factor and per-trade stats.
Pair screener
The top cointegrated pairs ranked by score — straight from our screener feed.
Ratio history
Raw R = A/B series from aligned OHLCV candles for your own models and charts.
Business
$20/ day
- 1,200 requests / min · 500,000 / day
- Unlimited ratio depth · priority
FAQ
Questions, answered.
Is PairSignal custody-free? Do you need my exchange keys?
Yes, fully custody-free. We only read public market data to compute the ratio. We never ask for exchange API keys, never touch your funds, and never place trades. You act on the alerts yourself.
How do I pay? Is there a subscription?
You top up a balance in days with crypto via Heleket — no recurring subscription and no auto-charges. Each active pair burns one credit per day; when you run dry, pairs simply auto-pause until you top up.
What's the free trial?
Your first pair comes with a 3-day free trial — no card, no crypto needed to start. Add a pair and the trial days are credited automatically.
What are API days, and how do API tiers work?
API access runs on a separate pool of days, billed per day at your chosen tier (Developer, Pro or Business). The tier sets your request rate, daily quota and which endpoints you can call. Top up any number of API days with crypto.
Which signals do you send, and where?
You get both entry and exit alerts — when the ratio crosses its upper band (entry) and when it reverts to the lower band (exit). Alerts arrive on Telegram and email.
Is this financial advice?
No. PairSignal provides informational signals only and is not financial, investment or trading advice. Trading crypto is high-risk; you alone decide whether to act on a signal.
Stop staring at
two charts at once.
Let PairSignal watch the ratio and ping you on the crossing. Free for 3 days.
Get started free