> For the complete documentation index, see [llms.txt](https://www.bluegamma.io/documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.bluegamma.io/documentation/reference.md). # Reference - [How far back does BlueGamma's data go?](https://www.bluegamma.io/documentation/reference/how-far-back-does-bluegammas-data-go.md): How far back BlueGamma's history goes for swap rates, government bond yields and FX: swap rates from June 2018, bonds from the 1980s for the largest markets, FX forwards from December 2025. - [How far out do BlueGamma's curves go?](https://www.bluegamma.io/documentation/reference/how-far-out-do-bluegammas-curves-go.md): SONIA curves go out to 70 years, SOFR, Fed Funds, ESTR and 12M EURIBOR to 60 years, and most other markets to 10 to 40 years. Maximum tenor for every index. - [How Often Is Your Data Refreshed?](https://www.bluegamma.io/documentation/reference/how-often-is-your-data-refreshed.md): Most major benchmarks refresh about every 30 seconds in market hours, others every few minutes to once a day, and FX streams in real time. Per-index update buckets. - [When Are Fixings Available?](https://www.bluegamma.io/documentation/reference/when-are-fixings-available.md): The UTC time and number of business days after the fixing date by which each benchmark fixing and central bank policy rate is available in BlueGamma. - [Where does BlueGamma's data come from?](https://www.bluegamma.io/documentation/reference/where-bluegammas-data-comes-from.md): BlueGamma builds its swap rates and forward curves from broker-dealer and electronic trading venue quotes, plus central bank fixings and policy rates, for more than 40 benchmark curves. - [How do I compare BlueGamma data with Bloomberg or other platforms?](https://www.bluegamma.io/documentation/reference/validating-bluegamma-api-data-against-bloomberg-or-other-platforms.md): Match payment frequency, day count and valuation time, then compare par swap rates from /swap\_rate. Default conventions, spot start and the market-standard API call for SOFR, SONIA, ESTR, EURIBOR, COR --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://www.bluegamma.io/documentation/reference.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.