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Crypto Market Signal — x402 Pay-Per-Call
x402
Crypto Market Signal — x402 Pay-Per-Call is a paid API for AI agents from x402.charliemorrison.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Returns real-time crypto market signals (momentum, volatility, price, 24h change) for one or more CoinGecko asset IDs, settled per call via USDC on Base.
Price / call$0.005
Success—
StatusUnknown
How this service works
Structured crypto market signal: for each CoinGecko id return price, market cap, 24h change, 24h volume, plus a derived momentum score (-100..100), a bullish/neutral/bearish signal, and a volatility flag — enriched data an agent ingests in a trading/research loop without computing it itself. Input: ids (comma-separated).
Output
A JSON object with a count of assets returned, a source field ('coingecko'), and an array of asset objects each containing: id, signal (e.g. neutral/bullish/bearish), momentum score (0-100 integer), current price in USD, volatility label (e.g. calm/volatile), and 24-hour percent change.
Example use cases
Example prompt
“What's the current market signal, momentum, and volatility for bitcoin, ethereum, and solana right now?”
Technical details
Endpoint
GEThttps://x402.charliemorrison.dev/signalWhen to prefer
Choose this endpoint when you need a fast, lightweight crypto market signal with momentum and volatility context without managing API keys — ideal for AI agents that need per-call pricing via USDC on Base and want a synthesized signal rather than raw ticker data.
Side effects
- Invalid or unknown CoinGecko IDs return an error or empty assets array
- More than 25 IDs in the query exceeds the max limit
- Missing required 'ids' query parameter returns a 400 or validation error
- Payment failure via x402 (insufficient USDC balance or network error) results in 402 response with no data
- CoinGecko upstream unavailability may cause delayed or missing data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 1,
"assets": [
{
"id": "bitcoin",
"signal": "neutral",
"momentum": 31,
"price_usd": 65000,
"volatility": "calm",
"change_24h_pct": 1.6
}
],
"source": "coingecko"
}
}Tags
x402
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