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x402 Crypto Market Data – Symbol Info
x402
x402 Crypto Market Data – Symbol Info is a paid API for AI agents from x402-crypto-market-data.up.railway.app, paid per call via x402, $0.0015/call, status unknown (last checked 2026-09-13).
Returns trading status, asset precision, and metadata for a given crypto trading pair symbol (e.g. BTCUSDT)
Price / call$0.0015
Success—
StatusUnknown
How this service works
On-demand crypto market data. Discover available trading pairs for free, then retrieve live prices, market metadata, and historical candlesticks when you need them.
Output
A JSON object containing the symbol's trading status (e.g. TRADING), base asset ticker, quote asset ticker, and precision values for both the base and quote assets, enabling downstream order construction and display formatting.
Example use cases
Validate pair before placing order
“Before I trade, check whether ETHUSDT is currently in TRADING status and tell me the precision I should use for amounts and prices.”
Identify assets in an unfamiliar symbol
“I see the symbol SOLUSDT on the exchange — can you tell me what the base and quote assets are and whether it's actively trading?”
Audit precision settings for quoting logic
“I'm building a quoting engine and need the base and quote asset precision values for BNBUSDT — can you fetch that symbol info for me?”
Technical details
Endpoint
POSThttps://x402-crypto-market-data.up.railway.app/symbol-infoWhen to prefer
Use this endpoint when you need authoritative metadata about a specific trading pair — such as its current trading status, constituent assets, or decimal precision — before constructing orders, validating user input, or formatting amounts. Prefer it over generalized crypto APIs when you specifically need structured symbol metadata with guaranteed field coverage (status, baseAsset, quoteAsset, precision). The sibling free endpoint for discovering available symbols can be used first to confirm a symbol exists before paying for this lookup.
Side effects
- Invalid or unrecognized symbol returns an error or empty result
- Symbol not matching the required uppercase alphanumeric pattern (^[A-Z0-9]+$) may be rejected with a validation error
- Paid endpoint — missing or failed x402 payment results in a 402 Payment Required response
- Temporarily delisted or suspended symbols may return unexpected status values
- Network or server errors on the Railway-hosted service can cause timeouts
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| symbol | string | Trading symbol to look up, e.g. BTCUSDT. |
Output
Schema · Response
{
"type": "json",
"example": {
"status": "TRADING",
"symbol": "BTCUSDT",
"baseAsset": "BTC",
"quoteAsset": "USDT",
"quotePrecision": 8,
"baseAssetPrecision": 8,
"quoteAssetPrecision": 8
}
}Tags
x402
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