> ## Documentation Index
> Fetch the complete documentation index at: https://calcs.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Calcs.com API Reference

> The Calcs.com API reference lives on the developer portal at developer.calcs.com.

The Calcs.com API reference has a home of its own. Every endpoint, schema, parameter, and example is documented on the Calcs.com developer portal.

> [card] [Go to developer.calcs.com](https://developer.calcs.com/introduction)
>
> Projects, sheets, calculators, and site design data, with request and response schemas.

## The essentials

Base URL:

```
https://api.calcs.com
```

Authentication, on every request:

```
Authorization: Bearer YOUR_API_KEY
```

## What is documented there

| Area | Covers |
| - | - |
| [Projects](https://developer.calcs.com/api/projects) | Create, list, and delete projects, and export to PDF |
| [Sheets](https://developer.calcs.com/api/sheets) | Create a sheet from a template, update inputs, solve |
| [Calculators](https://developer.calcs.com/api/calculators-generic) | Generic templates, timber beams, and snow loads |
| [GIS environmental loads](https://developer.calcs.com/api/gis-environmental-loads) | Wind, tornado, snow, and seismic design data |
| [Schemas](https://developer.calcs.com/api/~schemas) | Request and response object definitions |

## Getting access

The API is the interface behind CalcsConnect, and access is granted case by case. Start with [getting API access to CalcsConnect](https://calcs.com/docs/integrations/calcsconnect/getting-api-access.md), or [book an integration call](https://calcs.com/contact).

> [!NOTE]
>
> The Solutions API documented under `/api-reference/endpoint/` is a different interface, at a different address, with its own authentication. New integrations should build against [developer.calcs.com](https://developer.calcs.com/introduction).


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.