What you get#
Onekey exposes Coinbase as 12 endpoints behind one API key: 9 endpoints return one record (data is an object) and 3 endpoints return a list (data is an array). Every answer uses the same envelope (success, data, metadata, error), the cost is reported in metadata.credits_charged, and fields are mapped onto the unified schema so the code you write for Coinbase also works for the rest of the finance & markets category.
Endpoints#
| Endpoint | What it does | Parameters | Credits | Status |
|---|---|---|---|---|
book | Top-of-book (level 1) for an Exchange product. | product* | 1 | stable |
buy_price | Coinbase buy price for a currency pair (v2 public prices). | pair* | 1 | stable |
candles | Candles for an Exchange product (granularity in seconds). | product*, granularity | 5 | stable |
currencies | Fiat currencies supported by Coinbase (id, name, min size). | - | 5 | stable |
currency | Currency details (precision, network confirmations) on Coinbase Exchange. | currency* | 1 | stable |
product | Trading pair details (increments, status) for an Exchange product. | product* | 1 | stable |
sell_price | Coinbase sell price for a currency pair (v2 public prices). | pair* | 1 | stable |
spot | Coinbase spot price for a currency pair (v2 public prices). | pair* | 1 | stable |
stats | 24h stats (open/high/low/last/volume) for an Exchange product. | product* | 1 | stable |
ticker | Latest ticker for an Exchange product (e.g. BTC-USD). | product* | 1 | stable |
time | Coinbase server time. | - | 1 | stable |
trades | Latest trades for an Exchange product. | product*, limit | 5 | stable |
A * marks a required parameter. Each endpoint name links to its reference page with the full parameter table, caching window and a recorded response.
Make a request#
This calls coinbase.book (1 credit, stable). Replace YOUR_API_KEY with your key; sign up, no card. 1,000 free credits cover the open-platform endpoints. Hard-to-reach platforms (X, TikTok, Instagram, Reddit, and others marked on their page) need a verified email and a purchased pack.
curl "https://api.onekey.dev/v1/coinbase/book?product=btc-usd" \
-H "x-api-key: YOUR_API_KEY"Fields you get back#
These unified fields come back from Coinbase, with the same names as on every other platform. The count is how many of its 12 mapped endpoints return the field; a field the source lacks is null, never missing. 18 platform-specific fields (ext.<name>) come on top, documented on each endpoint page.
| Field | Type | Endpoints |
|---|---|---|
entity.category | string | 6 |
entity.id | string | 6 |
market.price | number | 6 |
entity.date | ISO 8601 date | 5 |
market.symbol | string | 4 |
entity.name | string | 3 |
market.ask | number | 2 |
market.bid | number | 2 |
market.volume24h | number | 2 |
entity.type | string | 1 |
market.close | number | 1 |
market.high | number | 1 |
market.low | number | 1 |
market.open | number | 1 |
market.volume | number | 1 |
The full schema is in Unified schema.
Pricing#
Coinbase calls cost 1 to 5 credits, flat per endpoint. Free when served from cache (0.2 credit for a cached response over 100 KB). Invalid, failed or not-found calls are not charged. See pricing for credit packs.