> For the complete documentation index, see [llms.txt](https://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://bluegamma.io/documentation/methodology/methodology.md).

# Overview

Technical documentation on how BlueGamma constructs curves and calculates key financial metrics.

***

### Curve Construction

{% content-ref url="/pages/3sH7KiQtdjGQkPnzaKWn" %}
[How We Bootstrap the Yield Curve](/documentation/methodology/how-to-bootstrap-the-yield-curve.md)
{% endcontent-ref %}

{% content-ref url="/pages/BB5YM1dW6WYjfJJDo3qI" %}
[Government Bond Curves](/documentation/methodology/government-bond-curves.md)
{% endcontent-ref %}

{% content-ref url="/pages/kAnpXg2Zmn0boYGbYhme" %}
[FX Forward Curves](/documentation/methodology/fx-forward-curves.md)
{% endcontent-ref %}

### Calculations

{% content-ref url="/pages/9qpqnZegpNIsINe7yuZX" %}
[Zero Rates](/documentation/methodology/zero-rates.md)
{% endcontent-ref %}

{% content-ref url="/pages/viL64cQoVKIpsfJqGXD1" %}
[Forward Rates](/documentation/methodology/forward-rates.md)
{% endcontent-ref %}

{% content-ref url="/pages/noet10kxRjGqEegZw1zM" %}
[Discount Factors](/documentation/methodology/discount-factors.md)
{% endcontent-ref %}

***

## Quick Links

| Topic             | API Endpoint          | Excel Function                |
| ----------------- | --------------------- | ----------------------------- |
| Swap rates        | `/v1/swap_rate`       | `BlueGamma.SWAP_RATE()`       |
| Zero rates        | `/v1/zero_rate`       | `BlueGamma.ZERO_RATE()`       |
| Forward rates     | `/v1/forward_rate`    | `BlueGamma.FORWARD_RATE()`    |
| Discount factors  | `/v1/discount_factor` | `BlueGamma.DISCOUNT_FACTOR()` |
| Government yields | `/v1/gov_yield`       | `BlueGamma.GOV_YIELD()`       |

***

## Related Documentation

* [API Reference](/documentation/integrations/api/api-reference.md) — Full API documentation
* [Excel Add-in](/documentation/integrations/excel-add-in.md) — Excel integration guide
* [Available Indices](/documentation/integrations/available-indices.md) — Supported interest rate indices


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