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

# Overview

> Blockworks plugins put Blockworks data inside the tools you already use: spreadsheet plugins for Google Sheets and Excel today, with plugins for AI assistants next.

Plugins bring Blockworks data into the tools you already work in, with no code and no
client to maintain. Each plugin signs in with your Blockworks API key and reads from the
same warehouse models as the [Data API](/getting-started/data-api), so a number in a
spreadsheet cell or an assistant's answer is the same number the API returns.

## Spreadsheet plugins

Write a formula, get a number or a full time series back, and let the sheet recalculate.
Use them to pull latest or historical metrics, build dashboards and models, and compare
assets, networks, exchanges, and sectors side by side. Both plugins are published as
**Messari by Blockworks**, so that is the name to look for in the Google Workspace and
Microsoft marketplaces.

<CardGroup cols={2}>
  <Card title="Google Sheets" icon="table" href="/spreadsheets/google-sheets">
    Install the add-on from the Google Workspace Marketplace and open the sidebar from the
    Extensions menu.
  </Card>

  <Card title="Microsoft Excel" icon="file-type-xls" href="/spreadsheets/excel">
    Install the add-in from the Microsoft Marketplace, or sideload it on Excel for Web and
    Excel for Mac.
  </Card>
</CardGroup>

## AI plugins

Plugins for AI assistants such as ChatGPT and Claude are coming next. They will let you ask
questions against Blockworks data inside the assistant you already use, with the same key
and the same datasets. Their pages will appear in this tab as they ship.

If you want an agent working against Blockworks data today, the hosted
[MCP Server](/mcp/overview) already connects Claude, ChatGPT, Cursor, and any MCP-capable
client.

## What you need

An API key. Generate one at
[app.blockworks.com/account/api](https://app.blockworks.com/account/api), then sign in from
the plugin. The same key works across every plugin and the rest of the Blockworks API. See
[Authentication](/getting-started/authentication) for how keys work elsewhere.

Each user authenticates individually. In a shared spreadsheet, formulas only calculate for
people who have signed in with their own key.

## Under the hood

Every plugin calls the Blockworks Data API. If you want to know how a metric is defined,
which entities are available, or how a time series is bucketed, the API docs are the
reference:

<CardGroup cols={2}>
  <Card title="Data API" icon="server" href="/getting-started/data-api">
    Endpoints, parameters, and the datasets behind every plugin.
  </Card>

  <Card title="Tabular vs timeseries" icon="chart-line" href="/getting-started/concepts/tabular-vs-timeseries">
    How point-in-time values and historical series differ in the underlying data.
  </Card>
</CardGroup>