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

# Photon

> Manage Photon projects, messaging channels, messages, and billing usage through MCP.

Manage Photon projects, connect messaging channels, send and read messages, and check billing usage through MCP.

## Prerequisites

You need access to your Tembo organization and access to the intended Photon account. Review the provider permissions before granting access to your data.

## Installation

1. Open **Settings → Integrations** in Tembo.
2. Select **Photon** and start the installation.
3. Complete the provider authorization if prompted. Review the requested access and select the intended account or workspace.
4. Confirm the connection is ready before starting a new session.

The catalog server endpoint is `https://mcp.photon.codes/mcp`.

If authorization requires a pre-registered OAuth client, follow the [MCP authentication instructions](https://docs.tembo.io/integrations/mcp.md#advanced) and register the callback shown in the connection dialog.

## Usage and verification

Start a new session and ask Tembo to list your Photon projects. Confirm the tools are available and that any returned account data belongs to the account you intended to connect.

## Access and troubleshooting

Confirm the project and channel before allowing Tembo to send messages.

If the connection remains pending, return to **Settings → Integrations** and finish authorization. If tools do not appear, confirm the connection was saved and start a new session. See [MCP troubleshooting](https://docs.tembo.io/integrations/mcp.md#advanced) for authentication and connectivity checks.


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