# Saxo API: questions and answers

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/answers/saxo, 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.

8 questions about the Saxo API, each answered from the Saxo record on this site (https://openbrokerapi.com/brokers/saxo) and nothing else.

- Newest check: 2026-10-09
- Official documentation: [developer.saxo](https://www.developer.saxo/openapi/learn)

An answer here is the record's own wording, cut at the end of a sentence, or a list of names read from records. An answer that opens with the word Unverified has no dated source behind it. Where this page and the provider's own documentation differ, the documentation wins. Nothing here recommends a broker.

## Saxo API questions

### Does Saxo have an API?

Yes. This register records Saxo as having its own API (REST and WebSocket streaming), with availability marked as active. OAuth 2.0 REST and WebSocket API, with a free simulation environment.

- Status: verified. Source: [Getting started, Saxo OpenAPI](https://www.developer.saxo/openapi/learn), checked 2026-09-20.

- [The Saxo API record](https://openbrokerapi.com/brokers/saxo)

### Does Saxo have a demo or paper trading API?

Yes: SIM environment; 24 hour portal tokens work in SIM only.

- Status: verified. Source: [Saxo Environments](https://www.developer.saxo/openapi/learn/environments), checked 2026-09-20.

- [The Saxo record's full wording](https://openbrokerapi.com/brokers/saxo#access)

### What are Saxo's API rate limits?

Headline limit: 120/min per session, per service group. Scope: session.

- Status: verified. Source: [developer.saxo](https://www.developer.saxo/openapi/learn/rate-limiting), checked 2026-09-18.

- [Saxo API rate limits in full, each with its scope](https://openbrokerapi.com/brokers/saxo/rate-limits)

### How do I authenticate with the Saxo API?

OAuth 2.0 authorization code (with or without PKCE); app key and secret for live. Refresh tokens rotate: each is invalidated on use and replaced. Certificate-based auth is for select partners only, not retail.

- Status: verified. Source: [Saxo OpenAPI Learn](https://www.developer.saxo/openapi/learn), checked 2026-09-20.

- [The Saxo record's full wording](https://openbrokerapi.com/brokers/saxo#access)

### Does Saxo support streaming or WebSocket prices?

WebSocket streaming (SIM and live hosts).

- Status: verified. Source: [Saxo Environments](https://www.developer.saxo/openapi/learn/environments), checked 2026-09-21.

- [The Saxo record's full wording](https://openbrokerapi.com/brokers/saxo#access)

### Is there an official Python library for Saxo?

No Python library marked official is recorded here for Saxo, which is not evidence that none exists. The record lists as community: saxo_openapi.

- Status: verified. Source: [saxo_openapi](https://pypi.org/project/saxo-openapi/), checked 2026-09-18.

- [Every library in the Saxo record](https://openbrokerapi.com/brokers/saxo#sdks)

### Does Saxo have an MCP server?

The MCP server register on this site holds 1 server for Saxo. Published by the community, not by the provider: saxo-mcp.

- Status: verified. Source: [saxo-mcp](https://github.com/SirAdlerBD/saxo-mcp), checked 2026-09-24.

- [The MCP server directory, with what each server can do](https://openbrokerapi.com/ai/mcp-directory)

### What does Saxo error IllegalInstrumentId mean?

The instrument is unknown. Saxo's description is Unknown instrument name. Saxo lists this among the error codes of the order placement endpoint.

- Status: verified. Source: [developer.saxo](https://www.developer.saxo/openapi/referencedocs/trade/v2/orders/post__trade), checked 2026-10-09.

- [Saxo error IllegalInstrumentId: the meaning in full and what to do](https://openbrokerapi.com/errors/saxo/illegal-instrument-id)

## Where to go next

- [The Saxo API record in full: every field with its source](https://openbrokerapi.com/brokers/saxo)
- [Answers for every broker and platform API](https://openbrokerapi.com/answers)
- [Which retail brokers have a public trading API?](https://openbrokerapi.com/answers/has-an-api)
- [Which broker APIs have a demo environment?](https://openbrokerapi.com/answers/demo-api)
- [What are the rate limits of each broker API?](https://openbrokerapi.com/answers/rate-limits)
- [How does each broker API authenticate?](https://openbrokerapi.com/answers/authentication)
- [Which broker APIs stream prices?](https://openbrokerapi.com/answers/streaming)
- [Which broker APIs have an official Python library?](https://openbrokerapi.com/answers/python-library)
- [Which broker APIs have an MCP server?](https://openbrokerapi.com/answers/mcp-server)
- [What does each API's most referenced error mean?](https://openbrokerapi.com/answers/error-codes)
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- [FXCM API: questions and answers](https://openbrokerapi.com/answers/fxcm)
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- [IG API: questions and answers](https://openbrokerapi.com/answers/ig)
- [Interactive Brokers API: questions and answers](https://openbrokerapi.com/answers/ibkr)
- [OANDA API: questions and answers](https://openbrokerapi.com/answers/oanda)
- [Pepperstone API: questions and answers](https://openbrokerapi.com/answers/pepperstone)
- [Swissquote API: questions and answers](https://openbrokerapi.com/answers/swissquote)
- [ThinkMarkets API: questions and answers](https://openbrokerapi.com/answers/thinkmarkets)
- [Tickmill API: questions and answers](https://openbrokerapi.com/answers/tickmill)
- [Trading 212 API: questions and answers](https://openbrokerapi.com/answers/trading-212)
- [XTB API: questions and answers](https://openbrokerapi.com/answers/xtb)

## 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: Saxo API: questions and answers. Broker API Hub, https://openbrokerapi.com/answers/saxo, newest check 2026-10-09.

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.
