# CMC Markets API options Independent and unofficial. Not affiliated with or endorsed by any broker or platform named here. Educational only: nothing here is advice, and nothing here recommends a broker or a trade. This is the markdown version of https://openbrokerapi.com/brokers/cmc-markets, written from the same records as that page. Risk warning: CFDs and spread bets are complex instruments and come with a high risk of losing money rapidly due to leverage. You can lose money on these products, and each provider publishes its own loss figure under FCA rules. You should consider whether you understand how they work and whether you can afford to take the high risk of losing your money. Automated and API trading can amplify losses through bugs, connectivity failures and runaway orders. Large UK spread betting and CFD broker whose automation route is MT4. - Kind: Platform APIs only - Newest reading: 2026-10-12 - Official documentation: [cmcmarkets.com](https://www.cmcmarkets.com/en-gb/trading-platforms/metatrader-4) - Everything recorded for CMC Markets, as one JSON file: https://openbrokerapi.com/data/brokers/cmc-markets.json ## Access, authentication and streaming - How you get a key: Platform access only for retail clients, on the pages opened. CMC's UK platforms page offers its own web platform, its mobile app and MetaTrader 4, and the MT4 page presents Expert Advisors as the way to automate. An API appears only on CMC Connect, the institutional side, which offers market data and trade execution over the FIX protocol, either through a direct API or through a third party technology hub. No page opened on 12 Oct 2026 offers an API to retail clients, which is what the pages show and not a statement by CMC that none exists. - Status: verified. Source: [CMC Markets UK trading platforms](https://www.cmcmarkets.com/en-gb/trading-platforms), checked 2026-10-12. - Status: verified. Source: [CMC Markets UK MetaTrader 4](https://www.cmcmarkets.com/en-gb/trading-platforms/metatrader-4), checked 2026-10-12. - Status: verified. Source: [CMC Connect connectivity](https://www.cmcmarkets.com/en/connect/solutions/connectivity), checked 2026-10-12. - Demo: Platform demo only: an MT4 demo account with GBP 10,000 of virtual funds, which stays open as long as you log in to MT4 at least once every 30 days. It is a demo of the platform, not of an API. The CMC Connect page does not say whether a test FIX session is offered. - Status: verified. Source: [CMC Markets UK MetaTrader 4](https://www.cmcmarkets.com/en-gb/trading-platforms/metatrader-4), checked 2026-10-12. - Status: verified. Source: [CMC Connect connectivity](https://www.cmcmarkets.com/en/connect/solutions/connectivity), checked 2026-10-12. - Rate limits, as worded: No retail API on the pages opened. CMC Connect offers market data and execution through the FIX protocol to institutional clients, and its connectivity page states no rate limit (re-read 12 Oct 2026). A page that states no limit is not evidence that there is none. - Status: verified. Source: [CMC Connect connectivity](https://www.cmcmarkets.com/en/connect/solutions/connectivity), checked 2026-10-12. ## Platform APIs an account here can reach - [MetaTrader 4 (MQL4)](https://openbrokerapi.com/platforms/metatrader-4): offered. Offered for spread betting and CFDs. The MT4 page says Expert Advisors can be used to automate trading. - Status: verified. Source: [CMC Markets UK MetaTrader 4](https://www.cmcmarkets.com/en-gb/trading-platforms/metatrader-4), checked 2026-10-12. - [MetaTrader 5 (Python package and MQL5)](https://openbrokerapi.com/platforms/metatrader-5): not verified. Not listed on UK platforms page; MetaQuotes MT5 directory lists CMC Markets (region not stated). - Status: unverified. Source: [CMC Markets UK trading platforms](https://www.cmcmarkets.com/en-gb/trading-platforms), checked 2026-09-18. - [cTrader Open API](https://openbrokerapi.com/platforms/ctrader): not offered. cTrader not listed on the broker's UK platforms page; absence from an overview page is not proof, so unverified. - Status: unverified. Source: [CMC Markets UK trading platforms](https://www.cmcmarkets.com/en-gb/trading-platforms), checked 2026-09-18. - [TradeLocker API](https://openbrokerapi.com/platforms/tradelocker): not offered. TradeLocker not listed on the broker's UK platforms page; absence from an overview page is not proof, so unverified. - Status: unverified. Source: [CMC Markets UK trading platforms](https://www.cmcmarkets.com/en-gb/trading-platforms), checked 2026-09-18. - [Match-Trader Platform API](https://openbrokerapi.com/platforms/match-trader): not offered. Match-Trader not listed on the broker's UK platforms page; absence from an overview page is not proof, so unverified. - Status: unverified. Source: [CMC Markets UK trading platforms](https://www.cmcmarkets.com/en-gb/trading-platforms), checked 2026-09-18. - [DXtrade APIs](https://openbrokerapi.com/platforms/dxtrade): not offered. DXtrade not listed on the broker's UK platforms page; absence from an overview page is not proof, so unverified. - Status: unverified. Source: [CMC Markets UK trading platforms](https://www.cmcmarkets.com/en-gb/trading-platforms), checked 2026-09-18. ## CMC Markets API: questions and answers ### Does CMC Markets have an API? No API of its own is recorded for CMC Markets on this register. Platform APIs recorded as offered: MetaTrader 4. - Status: verified. Source: [CMC Markets UK MetaTrader 4](https://www.cmcmarkets.com/en-gb/trading-platforms/metatrader-4), checked 2026-10-12. ### CMC Markets API demo: is there a demo or sandbox? Platform demo only: an MT4 demo account with GBP 10,000 of virtual funds, which stays open as long as you log in to MT4 at least once every 30 days. It is a demo of the platform, not of an API. - Status: verified. Source: [CMC Markets UK MetaTrader 4](https://www.cmcmarkets.com/en-gb/trading-platforms/metatrader-4), checked 2026-10-12. - Status: verified. Source: [CMC Connect connectivity](https://www.cmcmarkets.com/en/connect/solutions/connectivity), checked 2026-10-12. ### What are the CMC Markets API rate limits? No retail API on the pages opened. CMC Connect offers market data and execution through the FIX protocol to institutional clients, and its connectivity page states no rate limit (re-read 12 Oct 2026). - Status: verified. Source: [CMC Connect connectivity](https://www.cmcmarkets.com/en/connect/solutions/connectivity), checked 2026-10-12. ### Which platform APIs work with an account at CMC Markets? Recorded as offered, with a source: MetaTrader 4. Not verified either way: MetaTrader 5, cTrader, TradeLocker, Match-Trader and DXtrade. - Status: verified. Source: [CMC Markets UK MetaTrader 4](https://www.cmcmarkets.com/en-gb/trading-platforms/metatrader-4), checked 2026-10-12. [CMC Markets API questions, each answered in a sentence or two](https://openbrokerapi.com/answers/cmc-markets). ## Partner programme No published figure. [The CMC Markets partner programme record](https://openbrokerapi.com/partners/cmc-markets). This site carries no affiliate links. ## Licence and how to cite The limit records on this page come from the limits register, which is CC BY 4.0 (https://openbrokerapi.com/data/limits.json). Everything else on it comes from records that are all rights reserved. This file is the page itself, at its own address, in another format, and it is not part of the CC BY 4.0 downloads listed at https://openbrokerapi.com/data. Cite as: CMC Markets API options. Broker API Hub, https://openbrokerapi.com/brokers/cmc-markets, newest check 2026-10-12. Where you rely on a single figure, cite the source and the checked date printed beside it as well. Where this page and a broker's own documentation differ, the documentation wins.