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x402 Price API – Price History
x402
x402 Price API – Price History is a paid API for AI agents from x402-api-production-bd43.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Returns historical price data for a specified cryptocurrency (e.g. Bitcoin, Ethereum) via a pay-per-call x402 endpoint
Price / call$0.01
Success—
StatusUnknown
How this service works
Paid API endpoints for prices, weather, FX, news, gas, dominance, fear/greed, ATH, and more
Output
A time-series dataset of historical prices for the requested cryptocurrency, likely including timestamps and price values in USD or equivalent fiat, returned as structured JSON.
Example use cases
Crypto portfolio performance review
“Show me the historical price data for Ethereum so I can see how my portfolio has performed over time.”
Backtesting a trading strategy
“I need Bitcoin's price history to backtest my moving-average trading strategy — can you fetch that from the x402 Price API?”
Comparing two crypto assets
“Pull the price history for both Solana and Cardano so I can compare how they've each trended.”
Technical details
Endpoint
GEThttps://x402-api-production-bd43.up.railway.app/price-history?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need historical price data for a specific cryptocurrency and are already operating within the x402 micropayment ecosystem. It is cost-effective at $0.01 per call and is Coinbase-curated, making it a trusted source. Prefer it over scraping or free-tier APIs when you need reliable, pay-as-you-go access without API key management overhead.
Side effects
- Missing or invalid 'coin' parameter returns an error or empty result
- Unsupported coin ID returns a not-found or validation error
- Payment failure (insufficient USDC or x402 protocol error) blocks access with a 402 response
- Rate limiting or service downtime returns 5xx errors
- Misspelled coin ID (e.g. 'btc' instead of 'bitcoin') may return no results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| coin | string | Coin ID (e.g. bitcoin, ethereum) |
Tags
x402
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