binance.symbol_info

stable Standard

Trading rules and status for a spot symbol.

GET /v1/binance/symbol_info

What you get#

One Binance record in Onekey's unified shape, in data. If the record does not exist you get a 404 not_found and are not charged.

What it costs#

Standard · 1 credit for a fresh fetch, charged only when it succeeds.
Free when served from cache (0.2 credit for a cached response over 100 KB).
Free if the request is invalid (never charged) or the source fails or reports not found (refunded).

Parameters#

Name	Type	Required	Default	What it is	Constraints
`symbol`	string	yes	(required)	Spot symbol, UPPERCASE, e.g. BTCUSDT	max 20 chars; must match `[A-Z0-9]{2,20}`; trimmed

Request#

curl "https://api.onekey.dev/v1/binance/symbol_info?symbol=BTCUSDT" \
  -H "x-api-key: YOUR_API_KEY"

Try it

Add your key to run this call right here. No key? Get one free. The key stays in this tab.

Recorded response#

A real Binance response, recorded and returned in Onekey's shape. Fields the platform does not provide are null.

json

{
  "success": true,
  "data": {
    "market": {
      "symbol": "BTCUSDT"
    },
    "entity": {
      "category": "TRADING"
    },
    "ext": {
      "baseAsset": "BTC",
      "quoteAsset": "USDT",
      "baseAssetPrecision": 8,
      "quotePrecision": 8,
      "spotTradingAllowed": true,
      "marginTradingAllowed": true,
      "orderTypes": [
        "LIMIT",
        "LIMIT_MAKER",
        "MARKET",
        "STOP_LOSS",
        "STOP_LOSS_LIMIT",
        "TAKE_PROFIT",
        "TAKE_PROFIT_LIMIT"
      ]
    }
  },
  "metadata": {
    "platform": "binance",
    "endpoint": "symbol_info",
    "cached": false,
    "stale": false,
    "age_s": 0,
    "fetched_at": "2026-01-01T12:00:00+00:00",
    "credits_charged": 1,
    "request_id": "7f3a9c2e5b1d4c8fa2e6d0b9c4f18e37"
  },
  "error": null
}

Field mapping#

How this endpoint's source fields become Onekey's unified schema. Fields the source lacks come back as null.

Source path	Onekey field	Transform
`symbol`	`market.symbol`	-
`status`	`entity.category`	-
`baseAsset`	`ext.baseAsset`	-
`quoteAsset`	`ext.quoteAsset`	-
`baseAssetPrecision`	`ext.baseAssetPrecision`	`toNumber`
`quotePrecision`	`ext.quotePrecision`	`toNumber`
`isSpotTradingAllowed`	`ext.spotTradingAllowed`	`toBoolean`
`isMarginTradingAllowed`	`ext.marginTradingAllowed`	`toBoolean`
`orderTypes`	`ext.orderTypes`	-

Caching and freshness#

Fresh for about 1 hour. Repeat calls in that window are served from cache and are free.
Between 1 hour and 1 day the cached copy is still served instantly and marked stale: true while Onekey refreshes it in the background.
If the source is down when a refresh is needed, the last copy can be served for up to 1 day more (marked stale).
A "not found" is remembered for 5 minutes and is free.
The cache is shared across all customers, which is what keeps repeat calls cheap.

What can go wrong#

Status	Code	What to do
401	`unauthorized`	Check the `x-api-key` header.
402	`insufficient_credits`	Add credits; your balance must cover the price.
404	`not_found`	That record does not exist. Free; do not retry.
422	`invalid_params`	Fix the parameters using the table above. Free.
429	`rate_limited`	Wait `Retry-After` seconds, then retry.
502	`upstream_error`	The source failed. Refunded; retry with backoff.

See Errors for the full list and retry guidance.

Status: stable (verified against the live source).