# cTrader Open API error code: REQUEST_FREQUENCY_EXCEEDED (108)

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This is the markdown version of https://openbrokerapi.com/errors/ctrader/request-frequency-exceeded, 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.

The error, as text you can copy:

```
REQUEST_FREQUENCY_EXCEEDED
```

- Code number: `108`
- Kind: Open API error code
- Where you meet it: In an error message sent over the Open API connection, not in an HTTP status
- API: [cTrader Open API](https://openbrokerapi.com/platforms/ctrader)
- Status: verified. Source: [help.ctrader.com](https://help.ctrader.com/open-api/model-messages/), checked 2026-09-19.

## What does REQUEST_FREQUENCY_EXCEEDED (108) mean on the cTrader API?

Request rate limit exceeded (page gives the name with no longer description).

## How do I fix REQUEST_FREQUENCY_EXCEEDED (108)?

Throttle requests and back off.

## cTrader limits behind this error

This is a rate or allowance error, so these are the limits recorded for cTrader, each with its scope and source. Pace your requests against them.

- Requests a second, not historical data: 50 requests per second
  - Scope: Per connection, requests that are not for historical data
  - Status: verified. Source: [help.ctrader.com](https://help.ctrader.com/open-api/), checked 2026-10-12.
  - Note: Historical data requests have their own lower limit, held in a separate record.
- Requests a second, historical data: 5 requests per second
  - Scope: Per connection, historical data requests only
  - Status: verified. Source: [help.ctrader.com](https://help.ctrader.com/open-api/), checked 2026-10-12.

## More on the cTrader API

- [All cTrader API error codes](https://openbrokerapi.com/errors/ctrader)
- [cTrader API quickstart](https://openbrokerapi.com/platforms/ctrader/quickstart): From credentials to a first call on a demo account, step by step.
- [cTrader API error codes](https://openbrokerapi.com/errors/ctrader): 53 decoded, each with what it means, and the fix where the source gives one.
- [cTrader messages](https://openbrokerapi.com/platforms/ctrader/messages): 49 documented, each with its fields and source.
- [cTrader API page](https://openbrokerapi.com/platforms/ctrader): The full record: access, authentication, limits and the source for each.
- [cTrader Open API with Python](https://openbrokerapi.com/guides/ctrader-open-api-python): Guide

## Licence and how to cite

The records behind this page are all rights reserved. This file is the page itself, at its own address, in another format. It is not part of the CC BY 4.0 downloads listed at https://openbrokerapi.com/data. Quote from it with a link to the page.

Cite as: cTrader Open API error code: REQUEST_FREQUENCY_EXCEEDED (108). Broker API Hub, https://openbrokerapi.com/errors/ctrader/request-frequency-exceeded, newest check 2026-09-19.

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.