Asian LNG benchmark data
JKM LNG price API
Pull the Japan-Korea Marker — the benchmark for spot LNG delivered into Northeast Asia — into models, dashboards, spreadsheets, and internal applications through one REST API. JKM spot on every plan, JKM futures on plans with futures data.
Scope and fit
Use this when you need JKM price inputs in an application, model, or internal workflow. It is a normalized REST price feed with source timestamps — not an exchange terminal, an official price-reporting-agency assessment file, or a settlement system. Futures codes require a plan with futures data.
JKM and related codes
Request series by code from the standard prices endpoint. Production integrations should read the returned metadata — futures responses resolve to a dated contract code such as JKM_FUTURES_2026_08.
| Series | API code | Unit | Availability |
|---|---|---|---|
| JKM LNG spot benchmark | JKM_LNG_USD | USD per MMBtu | All plans |
| JKM LNG futures (front contract) | JKM_FUTURES | USD per MMBtu | Plans with futures data |
| Dutch TTF gas (for JKM-TTF spread) | DUTCH_TTF_EUR | EUR per MWh | All plans |
Make a call
The same token-based pattern works for spot and futures codes. The example below requests the latest JKM spot assessment.
curl -H "Authorization: Token YOUR_API_KEY" \ "https://api.oilpriceapi.com/v1/prices/latest?by_code=JKM_LNG_USD"
Need this data in your app?
GET /v1/prices/latest?by_code=JKM_LNG_USD → $16.06Frequently asked questions
Does OilPriceAPI have a JKM LNG price API?
Yes. The Japan-Korea Marker spot benchmark is available through the standard prices endpoint as JKM_LNG_USD, quoted in USD per MMBtu. Request it with GET /v1/prices/latest?by_code=JKM_LNG_USD.
Are JKM futures available too?
Yes, on plans that include futures data. Requesting JKM_FUTURES returns the front contract (the response carries the resolved contract code, for example JKM_FUTURES_2026_08). Futures codes are tier-gated, so check your plan includes futures access before building on them.
What does the JKM price represent?
JKM (Japan-Korea Marker) is the benchmark price for spot LNG cargoes delivered ex-ship into Japan, South Korea, China, and Taiwan. It is the reference most Asian spot LNG deals and many analytics workflows price against.
How fresh is the JKM data?
The JKM spot series follows a business-day assessment cadence, so weekend and holiday values reflect the most recent session. Every response includes the latest source timestamp; read it to confirm the point is current enough for your workflow.
Can I compare JKM against European gas prices?
Yes. Dutch TTF is available from the same prices endpoint (DUTCH_TTF_EUR in EUR per MWh, or DUTCH_TTF_NATURAL_GAS_USD in USD). Mind the units when computing the JKM-TTF arbitrage spread: JKM is quoted per MMBtu and TTF per MWh, so convert one side before differencing.
Is this an exchange terminal or official assessment feed?
No. OilPriceAPI is a normalized REST price feed for applications, dashboards, spreadsheets, and internal models. It is not an exchange terminal, an official price-reporting-agency assessment file, or a settlement system.