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x402 Pulse
x402
x402 Pulse is a paid API for AI agents from x402-pulse-seller-production.up.railway.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-30).
Returns live BTC, ETH, and SOL prices alongside the Crypto Fear & Greed Index in a single API call.
Price / call$0.002
Success—
StatusUnknown
How this service works
Live BTC/ETH/SOL prices + the Crypto Fear & Greed Index in one call.
Output
A JSON response containing real-time USD prices for Bitcoin (BTC), Ethereum (ETH), and Solana (SOL) sourced from CoinGecko, plus the current Crypto Fear & Greed Index value and its sentiment label (e.g. Fear, Greed, Extreme Greed) from alternative.me — all in a single combined payload.
Example use cases
Morning crypto dashboard briefing
“Give me a quick market snapshot — what are BTC, ETH, and SOL trading at right now, and is the market feeling fearful or greedy?”
Automated trading signal check
“Before placing any trades today, pull the latest Bitcoin, Ethereum, and Solana prices along with the Fear & Greed Index so I can gauge overall market mood.”
Crypto portfolio sentiment alert
“Check if the Crypto Fear & Greed Index is in extreme fear or extreme greed right now, and tell me where BTC, ETH, and SOL are priced.”
Technical details
Endpoint
GEThttps://x402-pulse-seller-production.up.railway.app/pulse?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need BTC, ETH, and SOL prices AND the Fear & Greed Index in a single lightweight call, avoiding the overhead of querying CoinGecko and alternative.me separately. Ideal for agents that need a quick combined crypto market snapshot for dashboards, trading signals, or sentiment monitoring at very low cost ($0.002 per call).
Side effects
- Upstream CoinGecko or alternative.me API unavailable — returns stale or error response
- Payment not processed correctly via x402 protocol — returns 402 Payment Required
- Railway.app hosting downtime — endpoint unreachable
- Rate limit exceeded on underlying public data sources — degraded or missing data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"btc_usd": 84638,
"eth_usd": 2676.4,
"sol_usd": 119.54,
"fetched_at": "2026-10-03T06:22:02.173Z",
"fear_greed_label": "Greed",
"fear_greed_value": "67",
"btc_24h_change_pct": -1.59,
"eth_24h_change_pct": -1.8,
"sol_24h_change_pct": -1.77
}
}Tags
x402
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