# Install Lightsage MCP in Hermes

Connect Hermes to Lightsage MCP with a streamable HTTP MCP server config.

Hermes can connect to streamable HTTP MCP servers from its MCP server configuration. Use this guide to connect Hermes to the hosted Lightsage MCP endpoint.

**1. Get your Lightsage API key**  
Open the [Lightsage dashboard](https://app.lightsage.com/settings/api), copy your API key, and store it as `LIGHTSAGE_API_KEY`:

```bash theme={null}
export LIGHTSAGE_API_KEY="ls_cli_your_api_key"
```

Do not put your API key in shared project config, screenshots, issue reports, or public repositories.

**2. Add Lightsage MCP to Hermes**  
Add Lightsage MCP to your Hermes MCP configuration:

```yaml theme={null}
mcp_servers:
  lightsage:
    url: https://mcp.lightsage.com/mcp
    headers:
      X-Lightsage-Api-Key: ${LIGHTSAGE_API_KEY}
    tools:
      resources: false
      prompts: false
```

Hermes identifies a remote MCP server by the presence of `url`. There is no separate `transport` field.

**3. Reload MCP**  
Reload MCP after changing the config:

```text theme={null}
/reload-mcp
```

Then run a read-only prompt:

```text theme={null}
Use the Lightsage MCP server to check my Lightsage auth status.
```

See the [Hermes MCP guide](https://hermes-agent.nousresearch.com/docs/guides/use-mcp-with-hermes/) for config policy, tool filtering, and troubleshooting.