# CME Reference Data API

**Canonical:** https://apis.io/apis/cme-group/cme-reference-data-api/  
**Provider:** CME Group — https://apis.io/providers/cme-group/  
**Base URL:** https://refdata.api.cmegroup.com/refdata/v3  
**Documentation:** https://www.cmegroup.com/trading/market-tech-and-data-services/cme-reference-data-api.html

CME Reference Data API is one of 7 APIs that [CME Group](https://apis.io/providers/cme-group/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Instruments, Authentication, Product, Reference Data, and REST. The published artifact set on APIs.io includes API documentation and an API reference.

A set of JSON RESTful web service APIs that provide access to product and instrument reference data for CME Group, BrokerTec, EBS, hosted partners, and CME Group-cleared markets. Supports OAuth-secured access to product definitions, instrument metadata, market segment information, and trading hours used to power trading automation and risk systems.

## Machine-readable artifacts (4)

- **Documentation** — https://www.cmegroup.com/trading/market-tech-and-data-services/cme-reference-data-api.html
- **Reference** — https://cmegroupclientsite.atlassian.net/wiki/display/EPICSANDBOX/CME+Reference+Data+API+Version+3
- **Portal** — https://www.cmegroup.com/market-data/market-data-api.html
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/cme-group/refs/heads/main/apis.yml

## Other CME Group APIs (6)

- [Real-Time Futures and Options Data API](https://apis.io/apis/cme-group/real-time-futures-options-api/)
- [CME Term SOFR API](https://apis.io/apis/cme-group/cme-term-sofr-api/)
- [CME FedWatch API](https://apis.io/apis/cme-group/fedwatch-api/)
- [Greeks and Implied Volatility API](https://apis.io/apis/cme-group/greeks-iv-api/)
- [EUR/USD Cross Currency Basis Index API](https://apis.io/apis/cme-group/eurusd-basis-api/)
- [CME ClearPort API](https://apis.io/apis/cme-group/cme-clearport-api/)

## Tags

Instruments, Authentication, Product, Reference Data, REST

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/cme-group/cme-reference-data-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/cme-group/.