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Crypto Market Dominance (BTC, ETH, USDT)
x402
Crypto Market Dominance (BTC, ETH, USDT) is a paid API for AI agents from asistent-crypto.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns BTC, ETH, and USDT dominance as a percentage of total crypto market cap, serving as a regime filter for altcoin positioning and risk-on/off signals.
Price / call$0.01
Success—
StatusUnknown
How this service works
BTC, ETH and USDT dominance as a share of total crypto market cap — the regime filter to check before sizing any altcoin position. Rising BTC dominance means capital rotating to relative safety; rising USDT dominance means capital leaving for stablecoins, a broader risk-off. Falling BTC dominance with rising ETH dominance is the classic rotation signal.
Output
Returns BTC dominance, ETH dominance, and USDT dominance each as a percentage of total crypto market capitalization, along with contextual signals that indicate whether capital is rotating toward risk assets (altcoins, ETH) or toward relative safety (BTC) or fully off-risk (USDT stablecoins).
Example use cases
Pre-trade altcoin position sizing
“Before I open a large altcoin position, check the current BTC and USDT dominance levels — I want to know if capital is rotating to safety or if we're in a risk-on environment where altcoins could outperform.”
Altseason rotation signal detection
“Is ETH dominance rising while BTC dominance is falling right now? I want to know if the classic altseason rotation signal is flashing before I rebalance my portfolio.”
Risk-off regime alert for trading bot
“Pull the latest USDT dominance figure — if stablecoin dominance is spiking above recent levels, I want my bot to flag a risk-off regime and halt new altcoin buys.”
Technical details
Endpoint
POSThttps://asistent-crypto.vercel.app/api/x402/data/dominanceWhen to prefer
Choose this endpoint when you need a quick, quantitative read on the macro crypto market regime before making altcoin sizing decisions. It is ideal for trading bots, portfolio rebalancing agents, and risk management workflows that need BTC/ETH/USDT dominance in a single call without requiring a full market data subscription. Prefer this over general market cap endpoints when the specific question is about capital rotation and regime classification rather than individual coin prices.
Side effects
- Upstream market data provider unavailable — returns 5xx error
- Stale data if upstream provider has not refreshed recently — dominance figures may lag by minutes
- Payment not processed correctly — call rejected before data is returned
- Rate limiting if called in very rapid succession
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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