MT5 Gateway API: how MetaTrader 5 connects to liquidity and exchanges

What is the MT5 Gateway API?

The MT5 Gateway API is the interface MetaQuotes provides for connecting MetaTrader 5 to other trading systems and for creating custom data feeds. It is a toolkit, not a ready-made connection: with it, a developer builds a gateway that understands one outside system — a bank’s FIX API, an exchange, another broker’s platform — and translates between that system and MT5.

MetaQuotes has offered this route since the early years of MT5. A 2013 announcement listed the first working gateways to ECNs and exchanges, and added that brokers could build their own. That sentence is still the best summary of what the API is for.

What does an MT5 gateway actually do?

A gateway does three jobs continuously: it brings the provider’s prices into MT5 as quotes for your symbols, it passes the client orders you have chosen to hedge out to the provider, and it brings the execution reports back so MT5 can confirm, partially fill or reject the order.

On a normal day that looks simple. The difficult parts are the edges: what the gateway does when the provider rejects an order, when a fill arrives at a different price, when the session drops at 22:00 on a Sunday as markets reopen, or when a symbol’s trading hours differ between the provider and your MT5 configuration. A good gateway handles each of those predictably and tells your dealers about it.

The routing itself — which orders go out and which stay on your book — is configured in the MT5 administration tools. MetaQuotes describes gateways on its broker page as a way to hedge client risk immediately through other market participants, which is the classic straight-through processing use.

How does the Gateway API differ from the other MT5 APIs?

The Gateway API is the only MT5 interface designed to attach an outside market. The others manage accounts, extend the server or produce reports.

Gateway, bridge, Ultency or FIX API: what is the difference?

They sit at different levels. FIX is a messaging standard; a gateway and a bridge are software that uses it; Ultency is MetaQuotes’ own engine that aggregates providers inside MT5. Comparing them as if they were the same kind of thing is the most common confusion in this area.

Which gateways and providers are available natively?

MetaQuotes now presents most native liquidity connections through Ultency. Its liquidity page lists the providers available that way; on 12 October 2026 it showed 37, including LMAX Group, Swissquote Bank, StoneX Financial Ltd, iSAM Securities Limited, Finalto Financial Services Limited and IC Markets Global. MetaQuotes describes the process as choosing a provider from a gallery in MT5, agreeing terms with it, receiving credentials and configuring the connection.

For exchanges, MetaQuotes says MT5 supports direct connectivity through dedicated gateways. Exchange gateways bring their own requirements — membership or a clearing broker, market-data licences and exchange certification — so expect a longer project than an FX provider.

A provider not on the list can still be reached with a custom gateway or a bridge, usually over FIX. That is where you weigh building against buying.

Should you build a custom MT5 gateway or use an existing one?

Most brokers should not build one. A custom gateway makes sense when you need a venue nobody supports, when you are a provider wanting to offer MT5 brokers a native connection, or when you have unusual execution logic and an in-house team to maintain it for years.

What does building a custom gateway involve?

If you do build, the work goes well beyond writing a FIX client. This is the sequence we would plan:

1. Get the toolkitThe Gateway API comes from MetaQuotes to licence holders and developers; confirm access and documentation for your server build.
2. Study the venueRead the provider’s FIX specification in full: sessions, message types, custom tags, reject reasons, trading hours and maintenance windows.
3. Map symbols and sessionsBuild a table of every instrument: provider name, MT5 name, digits, contract size, minimum volume, sessions and holidays.
4. Handle every outcomeFills, partial fills, rejects, price changes, timeouts and disconnections each need defined behaviour and a dealer alert.
5. Certify and load-testPass the provider’s certification in its test environment, then test at news-day message rates.
6. Operate itMonitoring, log retention, reconnect logic and a test cycle for each new MT5 build.

Is a gateway faster than a bridge?

Not necessarily. Removing one software hop can save a little processing time, but end-to-end latency is decided mostly by where your server is hosted relative to the provider, the quality of the network between them and how quickly the provider itself responds.

That is why hosting comes up in every serious liquidity conversation. MetaQuotes’ Ultency page makes the point directly, giving the example of a London server for forex providers and a New York server for NYSE providers. MetaQuotes also advertises latency “of up to 0.1 ms” for Ultency’s connectivity; that is the vendor’s figure for its own infrastructure, not a measurement of your setup. Measure your own round-trip times with your own provider before and after any change.

Does a white label or grey label broker need its own gateway?

Usually not. An MT5 grey label is a brokerage set up inside another company’s licensed MetaTrader 5 server: you get your own client groups and your brand on the WebTrader, mobile apps, CRM and client portal, while the MT5 server licence stays with the provider. The provider’s gateways serve your groups too, according to the routing agreed in your contract.

In a white label the same applies unless your agreement lets you bring a separate provider, which the server owner then installs and supports. Availability of new white labels depends on MetaQuotes’ current approach, so we check each case individually; our MetaQuotes white label policy guide collects the background. With your own MT5 licence, gateways are your decision and your responsibility. If you are applying for one, we handle the MetaQuotes requirements and application for clients as a consulting service.

Worked example: connecting one provider to an MT5 server

Say a newly licensed broker wants to hedge majors and gold with one prime-of-prime provider, and keep the rest of its flow internal at first. The provider is available natively, so no custom gateway is needed. The technical side — connection, symbol map, routing for one test group — can be ready within days of receiving credentials; the provider’s onboarding and margin deposit decide the real timeline.

The broker maps 28 FX pairs and XAUUSD, checks contract sizes and swap conventions against the provider’s specification, and routes a staff group first. After a week of comparing fills with the provider’s reports, client groups on the ECN-style account move across. The standard account stays on the internal book with exposure limits, which is a hybrid set-up described in our A-book, B-book and hybrid execution guide.

If you are planning something similar, message us on WhatsApp with the provider’s name and the symbols you need.

What do gateway and liquidity connections cost?

There is no single price: gateway and bridge vendors rarely publish fees, and most of the running cost comes from the provider rather than the connector. We do not publish figures on this page, but we can tell you which lines a complete quote should have, and send current figures for your set-up if you message us on WhatsApp.

For gateway software, ask each vendor and compare the total over two or three years, including updates and support. A complete quote for the connection and the provider usually covers these items:

What should you ask a gateway vendor or provider before you commit?

Ask about failure handling and updates first; every vendor will tell you the connection is fast. These questions separate a gateway you can live with from one that will cost you on the first volatile day:

• What exactly happens to an order that the provider rejects, and how is the dealer told?
• How are partial fills reflected in MT5, and can a client end up with a volume they did not request?
• What does the gateway do when the provider session drops with orders in flight?
• Who updates the gateway when MetaQuotes releases a new MT5 build, and how quickly?
• Which logs are kept, for how long, and can we export them for an execution-quality review?
• Is there a test environment we can keep using after go-live for new symbols?
• What support hours apply, and who answers at 22:00 on a Sunday when markets reopen?

Where does the gateway sit in the rest of the broker stack?

The gateway is one layer in a chain that runs from the provider to the client’s screen. Prices arrive through the gateway, MT5 applies your symbol settings and markups, and the result reaches clients through the desktop terminal, the web platform or your own front ends. Orders travel back along the same chain.

That means a problem a client reports — a strange spike on a chart, a slow fill — can start anywhere along it. When we investigate, we check the provider’s own report first, then the gateway log, then the MT5 journal, and only then the front end. Our forex broker technology stack overview shows how the layers fit together, and if you would like us to look at a specific incident, send us the details on WhatsApp.

How does FXUP help with MT5 gateways?

We help brokers choose between an existing gateway, Ultency and a bridge, prepare the symbol map, configure routing on the MT5 side and test the connection before clients use it. We do not sell gateway software or liquidity. FXUP is independent and not affiliated with MetaQuotes, and we work with whichever connector suits your providers.

Because our branded WebTrader reads prices and positions from the same MT5 server, we check after go-live that quotes and fills look right from the client’s side as well. For the commercial side of choosing providers, see liquidity provider integration; for how quotes are built, see forex price feed.

Questions buyers ask

Not covered here? Ask us on WhatsApp, message @FXUPCK on Telegram or write to [email protected].