# Connect GitHub and MCP servers

Connect other systems to Agent Mode, so it can read your code or use tools your team already has. Owners and admins set this up in **Settings → Tools**.

![Settings → Tools with a GitHub section and an MCP servers section](https://thenotemaker.com/help/settings-tools.webp)

## GitHub

Let the agent read repositories you choose.

1.  Click **Connect GitHub**. You go to GitHub to pick the account and the repositories to share.
2.  Back in NoteMaker, click **Show repos** on the connection to see what the agent can reach.

The agent can then list files, read them and search code, and look at pull requests: their size, files changed, comments and check results. It cannot change your code. The **Reviewer** agent can also post a review comment on a pull request, but only after you approve it every time, and it never approves or requests changes.

It only sees the repositories you picked. **Disconnect** uninstalls the app from GitHub as well, not just in NoteMaker.

> [!info] 💡
> The button is disabled until your instance administrator has set up the GitHub app once for the whole instance.

## MCP servers

An MCP server is a service that offers tools to AI assistants, for example a ticket system. Click **Add MCP server** and enter its address, which must be public. Then choose how it signs you in:

-   **OAuth**. The server decides who may use it. Either each member signs in with their own account, so the agent never has more access than that person, or an owner or admin signs in once for the whole workspace.
-   **Headers**. Enter the header names and values the server expects, such as an API key under its own header name. Values are stored encrypted and never shown again.

Click **Test** to open the connection and see how many tools it offers.

## Approvals

A connector's tools ask for approval every time, even in Auto, until an owner or admin marks the connector **trusted**. After that they follow the chat's normal Manual or Auto rule.

If a member has not signed in to an OAuth connector, the agent skips its tools and tells them to sign in under **Settings → Tools**.

## Related

-   [✅ Approve what the agent does](https://docs.thenotemaker.com/agent-mode/approve-what-the-agent-does)
-   [🧑‍🔧 Custom agents](https://docs.thenotemaker.com/workspace-settings/custom-agents)