finnhub.quote

beta Standard

Real-time quote for a US ticker.

GET /v1/finnhub/quote

What you get#

One Finnhub 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)	Ticker, e.g. AAPL	max 20 chars; must match `[A-Za-z0-9.:-]{1,20}`; trimmed

Request#

curl "https://api.onekey.dev/v1/finnhub/quote?symbol=AAPL" \
  -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 Finnhub response, recorded and returned in Onekey's shape. Fields the platform does not provide are null.

json

{
  "success": true,
  "data": {
    "market": {
      "price": 261.74,
      "open": 261.07
    },
    "ext": {
      "change": 3.2,
      "changePct": 1.24,
      "dayHigh": 263.31,
      "dayLow": 260.68,
      "previousClose": 258.54
    },
    "entity": {
      "date": "2026-09-28T12:53:20Z"
    }
  },
  "metadata": {
    "platform": "finnhub",
    "endpoint": "quote",
    "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
`c`	`market.price`	`toNumber`
`d`	`ext.change`	`toNumber`
`dp`	`ext.changePct`	`toNumber`
`h`	`ext.dayHigh`	`toNumber`
`l`	`ext.dayLow`	`toNumber`
`o`	`market.open`	`toNumber`
`pc`	`ext.previousClose`	`toNumber`
`t`	`entity.date`	`toIsoDate`

Caching and freshness#

Fresh for about 30 seconds. Repeat calls in that window are served from cache and are free.
Between 30 seconds and 5 minutes 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 hour more (marked stale).
A "not found" is remembered for 1 minute 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: beta (not yet verified against the live source).