What you get#
Onekey exposes DefiLlama as 10 endpoints behind one API key: 3 endpoints return one record (data is an object) and 7 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 DefiLlama also works for the rest of the finance & markets category.
Endpoints#
| Endpoint | What it does | Parameters | Credits | Status |
|---|---|---|---|---|
chain_tvl_history | Daily TVL history for a chain (all time). | chain* | 5 | stable |
chains | TVL per chain across DeFi. | - | 5 | stable |
global_tvl_history | Daily global DeFi TVL history (all time). | - | 5 | stable |
hacks | DeFi hacks and exploits database. | - | 5 | stable |
pool_chart | TVL/APY history for a yield pool (by pool UUID). | pool* | 5 | stable |
protocol_dex_volume | DEX volume summary of a protocol (24h/7d/30d/all-time). | protocol* | 1 | stable |
protocol_fees | Fees/revenue summary of a protocol (24h/7d/30d/all-time). | protocol* | 1 | stable |
protocol_tvl | Current TVL of a DeFi protocol (by DefiLlama slug). | protocol* | 1 | stable |
stablecoin_chains | Stablecoin market cap per chain. | - | 5 | stable |
stablecoins | All stablecoins with circulating supply and peg info. | - | 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 defillama.protocol_dex_volume (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/defillama/protocol_dex_volume?protocol=uniswap" \
-H "x-api-key: YOUR_API_KEY"Fields you get back#
These unified fields come back from DefiLlama, with the same names as on every other platform. The count is how many of its 10 mapped endpoints return the field; a field the source lacks is null, never missing. 21 platform-specific fields (ext.<name>) come on top, documented on each endpoint page.
| Field | Type | Endpoints |
|---|---|---|
entity.name | string | 6 |
market.symbol | string | 5 |
entity.category | string | 4 |
entity.date | ISO 8601 date | 4 |
entity.id | string | 3 |
entity.url | URL | 3 |
market.price | number | 1 |
market.volume24h | number | 1 |
The full schema is in Unified schema.
Pricing#
DefiLlama 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.