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x402 Crypto Price API
x402
x402 Crypto Price API is a paid API for AI agents from x402.167-172-95-184.nip.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns current BTC and ETH USD prices, 24h percentage change, and market caps in a single pay-per-call request via x402/USDC
Price / call$0.01
Success—
StatusUnknown
How this service works
Agent-commerce trust/audit API for x402 challenge correctness, receipts, replay/context binding, failed payout triage, mandate readiness, and MCP/A2A discoverability.
Output
A JSON object containing current USD prices, market capitalizations, and 24-hour percentage change for BTC and ETH, plus the network (Base) and a Unix timestamp for the data snapshot.
Example use cases
Example prompt
“What are the current prices of Bitcoin and Ethereum in USD, along with their 24-hour percentage changes and market caps?”
Technical details
Endpoint
GEThttps://x402.167-172-95-184.nip.io/priceWhen to prefer
Choose this endpoint when you need a lightweight, agent-native, pay-as-you-go crypto price feed for BTC and ETH without a subscription. Ideal for AI agents that handle microtransactions via x402/USDC on Base and need real-time price snapshots with market cap and 24h change included in a single call.
Side effects
- Payment not included or insufficient USDC triggers HTTP 402 Payment Required
- Invalid or missing x402 payment header returns 402 with payment details
- Network issues with Base blockchain may delay payment settlement
- Rate limiting if payment is not confirmed in time
- Stale price data if upstream price oracle is delayed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"prices": {
"BTC": {
"usd": 100000,
"market_cap": 1980000000000,
"change_24h_pct": 1.23
},
"ETH": {
"usd": 3500,
"market_cap": 420000000000,
"change_24h_pct": -0.42
}
},
"network": "base",
"timestamp": 1780000000
},
"description": "Current BTC and ETH USD prices with 24h change and market caps."
}Tags
x402
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