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

# Introduction

> Auxilian gives you hosted Postgres databases that you and your AI assistant create, fill, and share by conversation.

Auxilian is a free service that gives you real Postgres storage you can shape in plain language. Ask Claude to design a table for your reading list, import a batch of leads, or clean up last week's records, and the change lands in a database you own. Open the web app to see exactly what changed, edit rows by hand, share a project with a teammate, or export a table to CSV.

Auxilian has two surfaces over the same data:

| Surface | Address | Use it to |
| - | - | - |
| Web app | `https://app.auxilian.ai` | Create projects, browse schemas and rows, edit records, share access, review the activity log, export CSV |
| MCP server | `https://mcp.auxilian.ai/mcp` | Let Claude and other MCP clients read and write your projects as you |

Both surfaces enforce the same permissions, limits, and validation, and every change from either one is recorded in the project's activity log.

<Columns cols={2}>
  <Card title="Quickstart" icon="rocket" href="/quickstart">
    Sign in, create a project, and connect Claude in about five minutes.
  </Card>

  <Card title="Core concepts" icon="boxes" href="/concepts">
    Workspaces, projects, tables, rows, and who can do what.
  </Card>

  <Card title="Connect Claude" icon="plug" href="/ai/connect-claude">
    Add Auxilian as a custom connector in Claude.
  </Card>

  <Card title="MCP tool reference" icon="wrench" href="/mcp/overview">
    Every tool Claude can call, with parameters and examples.
  </Card>
</Columns>

## What you can build

Each project is its own Postgres schema. Tables use a small set of column types (`text`, `integer`, `numeric`, `boolean`, `timestamptz`, `uuid`, `jsonb`), and tables can reference each other with foreign keys. That is enough for most personal and small-team data:

* A CRM with `companies`, `contacts`, and `deals` linked by foreign keys
* A content calendar that Claude keeps up to date as you plan
* A research log where Claude records sources, quotes, and tags as `jsonb`
* A shared inventory that teammates update in the web app while Claude answers questions about it

## How it fits together

<Steps>
  <Step title="You sign in with Google">
    Auxilian creates a personal workspace for you on first sign-in.
  </Step>

  <Step title="You create a project">
    A project is an isolated Postgres database schema inside a workspace.
  </Step>

  <Step title="You connect an AI assistant">
    You add the MCP server URL to Claude and approve access. Claude then acts as you, with your permissions.
  </Step>

  <Step title="You and Claude shape the data">
    Claude creates tables and writes rows through MCP tools. You review, edit, and share in the web app.
  </Step>
</Steps>

<Note>
  Auxilian is free. Usage limits keep it that way. See [Limits and quotas](/reference/limits) for the numbers.
</Note>


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