Environment variables and headers

Broxy supports environment variables for STDIO servers and headers for HTTP/SSE/WS servers.

Env (STDIO)

Format:

• One entry per line.
• KEY:VALUE syntax.
• Values may include placeholders.

Placeholders:

• ${ENV_VAR}
• {ENV_VAR}

Example:

GITHUB_TOKEN:{GITHUB_TOKEN}
PATH:{PATH}:/custom/bin

Notes:

• Placeholders are replaced with values from your environment at runtime.
• If a referenced variable is missing, Broxy reports a configuration error.

Headers (HTTP/SSE/WS)

Format:

• One header per line.
• Key:Value syntax.

Example:

X-Client:broxy
X-Project:docs

Notes:

• Headers are sent with every request to that server.
• If you set an Authorization header, Broxy skips OAuth discovery for that server.