# Auxilian

> Postgres databases that you and your AI assistant shape together. Guides, MCP tool reference, limits, and permissions for Auxilian.

- [Introduction](https://docs.auxilian.ai/index.md): Auxilian gives you hosted Postgres databases that you and your AI assistant create, fill, and share by conversation.
- [Quickstart](https://docs.auxilian.ai/quickstart.md): Sign in, create your first project, connect Claude, and build a table by conversation.
- [Core concepts](https://docs.auxilian.ai/concepts.md): How workspaces, projects, tables, rows, members, and surfaces relate in Auxilian.
- [Connect Claude](https://docs.auxilian.ai/ai/connect-claude.md): Add Auxilian to Claude as a custom connector so Claude can read and write your projects.
- [Other MCP clients](https://docs.auxilian.ai/ai/other-clients.md): Connect Claude Code, Cursor, VS Code, and any MCP client that supports remote servers with OAuth.
- [Approvals and access](https://docs.auxilian.ai/ai/approvals-and-access.md): What the approval page shows, what read and write access allow, and how AI assistants are held to your permissions.
- [Working with Claude](https://docs.auxilian.ai/ai/working-with-claude.md): Prompt patterns for designing schemas, loading data, querying, and cleaning up with Claude and Auxilian.
- [Projects](https://docs.auxilian.ai/app/projects.md): Create, open, and delete projects in the Auxilian web app.
- [Tables and columns](https://docs.auxilian.ai/app/tables.md): Create tables, add and drop columns, link tables with foreign keys, and drop tables in the web app.
- [Rows](https://docs.auxilian.ai/app/records.md): Browse, filter, add, edit, and delete rows in the Auxilian web app.
- [Export to CSV](https://docs.auxilian.ai/app/export.md): Download a table as a CSV file from the Auxilian web app.
- [Activity log](https://docs.auxilian.ai/app/activity.md): Review every schema change, row write, sharing change, and refused write in a project.
- [Workspaces](https://docs.auxilian.ai/collaborate/workspaces.md): How workspaces group people and projects, how to switch between them, and how to rename one.
- [Members and roles](https://docs.auxilian.ai/collaborate/members-and-roles.md): Invite people to a workspace, change their roles, and remove them.
- [Share a project](https://docs.auxilian.ai/collaborate/sharing-projects.md): Give workspace members read or write access to a project, change their permission, or revoke it.
- [Sign-in and profile](https://docs.auxilian.ai/account/sign-in.md): How signing in with Google works, what Auxilian stores about you, and how to sign out.
- [Delete your account](https://docs.auxilian.ai/account/delete-account.md): Permanently delete your Auxilian account and understand what happens to your workspaces, projects, and data.
- [MCP server overview](https://docs.auxilian.ai/mcp/overview.md): Endpoint, transport, tools, scopes, and rate limits of the Auxilian MCP server.
- [Authorization](https://docs.auxilian.ai/mcp/authorization.md): The OAuth 2.1 flow, discovery endpoints, client registration, and scopes used by the Auxilian MCP server.
- [Responses and errors](https://docs.auxilian.ai/mcp/responses-and-errors.md): The result format of Auxilian MCP tools, error codes, and the messages you are likely to see.
- [Filters](https://docs.auxilian.ai/mcp/filters.md): How to select rows with filters in list_rows, update_rows, and delete_rows.
- [list_projects](https://docs.auxilian.ai/mcp/tools/list-projects.md): List every project you can access and the workspaces you belong to.
- [list_tables](https://docs.auxilian.ai/mcp/tools/list-tables.md): List every table in a project with its columns and foreign keys.
- [describe_table](https://docs.auxilian.ai/mcp/tools/describe-table.md): Get the columns and foreign keys of one table.
- [list_rows](https://docs.auxilian.ai/mcp/tools/list-rows.md): Read rows from a table with optional filters, sorting, and paging.
- [create_project](https://docs.auxilian.ai/mcp/tools/create-project.md): Create a new project in a workspace where you are the owner or an admin.
- [create_table](https://docs.auxilian.ai/mcp/tools/create-table.md): Create a table with typed columns and optional foreign keys.
- [add_column](https://docs.auxilian.ai/mcp/tools/add-column.md): Add a column to an existing table.
- [insert_rows](https://docs.auxilian.ai/mcp/tools/insert-rows.md): Insert up to 100 rows into a table and get them back with their ids.
- [update_rows](https://docs.auxilian.ai/mcp/tools/update-rows.md): Set column values on every row that matches all filters.
- [delete_rows](https://docs.auxilian.ai/mcp/tools/delete-rows.md): Permanently delete every row that matches all filters.
- [drop_column](https://docs.auxilian.ai/mcp/tools/drop-column.md): Permanently remove a column and its data from a table.
- [drop_table](https://docs.auxilian.ai/mcp/tools/drop-table.md): Permanently delete a table and all of its rows.
- [Data types](https://docs.auxilian.ai/reference/data-types.md): The seven column types Auxilian supports, what each accepts as input, and how values come back.
- [Naming rules](https://docs.auxilian.ai/reference/naming-rules.md): Rules for table, column, project, and workspace names.
- [Foreign keys](https://docs.auxilian.ai/reference/foreign-keys.md): Link tables with uuid foreign keys and control what happens when referenced rows are deleted.
- [Permissions](https://docs.auxilian.ai/reference/permissions.md): Exactly who can see and change what in Auxilian, for people and the AI assistants acting for them.
- [Limits and quotas](https://docs.auxilian.ai/reference/limits.md): Usage limits that keep Auxilian free: projects, seats, tables, columns, storage, request sizes, and rate limits.
- [Activity events](https://docs.auxilian.ai/reference/activity-events.md): Every event Auxilian records in a project's activity log, with its details.
- [Security and data handling](https://docs.auxilian.ai/reference/security.md): How Auxilian authenticates people and AI assistants, isolates projects, and handles your data.
- [Troubleshooting](https://docs.auxilian.ai/help/troubleshooting.md): Fixes for common problems with signing in, connecting AI assistants, access, limits, and data.
- [FAQ](https://docs.auxilian.ai/help/faq.md): Answers to common questions about Auxilian.


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