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

# Tylon: Git's control panel

> Tylon is where work lives and where Git happens. A column is a real branch, moving a card is a real merge. These docs cover the public API and the MCP server.

Tylon is a board whose columns are real branches. Moving a card cuts a branch, opens a pull request, or merges one — so the board cannot say "done" while the repository disagrees.

> **[Start here](/en/concepts/cards)**
>
> What a card is, what a column really is, and what happens when you move one. Ten minutes that make the rest of these docs read differently.

## Reaching a board from outside

Two doors. They reach the same boards and enforce the same permissions — what differs is who is behind the call.

> **[Public API](/en/api-reference/introduction)**
>
> A credential, a `Bearer` header, and JSON. For a deploy script, a status page, a spreadsheet — anything that has no person sitting at it.

> **[MCP server](/en/mcp/connect)**
>
> For an editor or an agent working as **you**. It signs in the way you do, reads what you may read, and answers in sentences rather than in JSON.

## Which one you want

| | Public API | MCP server |
| - | - | - |
| Authenticates | a machine | a person |
| Credential | client id and secret | OAuth 2.0 with PKCE |
| Answers in | JSON, with HTTP status codes | prose, for a model to read |
| Writes | with the `write` scope and an idempotency key | yes |
| Set up in | **Settings → API credentials** | your editor, in one URL |

If a person is present and could click **Approve**, use MCP. If nothing is present but a cron entry, use the API.


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