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Proposal: Add an option to disable the authentication header #105

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Proposal: Add an option to disable the authentication header #105

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f3cf87a
feat: Add option to disable authentication
piljaechae Aug 11, 2025
ddb1e18
Merge pull request #1 from rapportlabs/add-option-to-disable-auth-header
piljaechae Aug 11, 2025
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36 changes: 25 additions & 11 deletions scripts/start-server.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@ export async function startServer(args: string[] = process.argv) {
let transport = 'stdio'; // default
let port = 3000;
let authToken: string | undefined;
let disableAuth = false;

for (let i = 0; i < args.length; i++) {
if (args[i] === '--transport' && i + 1 < args.length) {
Expand All @@ -32,6 +33,8 @@ export async function startServer(args: string[] = process.argv) {
} else if (args[i] === '--auth-token' && i + 1 < args.length) {
authToken = args[i + 1];
i++; // skip next argument
} else if (args[i] === '--disable-auth') {
disableAuth = true;
} else if (args[i] === '--help' || args[i] === '-h') {
console.log(`
Usage: notion-mcp-server [options]
Expand All @@ -40,6 +43,7 @@ Options:
--transport <type> Transport type: 'stdio' or 'http' (default: stdio)
--port <number> Port for HTTP server when using Streamable HTTP transport (default: 3000)
--auth-token <token> Bearer token for HTTP transport authentication (optional)
--disable-auth Disable bearer token authentication for HTTP transport
--help, -h Show this help message

Environment Variables:
Expand All @@ -53,14 +57,15 @@ Examples:
notion-mcp-server --transport http # Use Streamable HTTP transport on port 3000
notion-mcp-server --transport http --port 8080 # Use Streamable HTTP transport on port 8080
notion-mcp-server --transport http --auth-token mytoken # Use Streamable HTTP transport with custom auth token
notion-mcp-server --transport http --disable-auth # Use Streamable HTTP transport without authentication
AUTH_TOKEN=mytoken notion-mcp-server --transport http # Use Streamable HTTP transport with auth token from env var
`);
process.exit(0);
}
// Ignore unrecognized arguments (like command name passed by Docker)
}

return { transport: transport.toLowerCase(), port, authToken };
return { transport: transport.toLowerCase(), port, authToken, disableAuth };
}

const options = parseArgs()
Expand All @@ -76,11 +81,14 @@ Examples:
const app = express()
app.use(express.json())

// Generate or use provided auth token (from CLI arg or env var)
const authToken = options.authToken || process.env.AUTH_TOKEN || randomBytes(32).toString('hex')
if (!options.authToken && !process.env.AUTH_TOKEN) {
console.log(`Generated auth token: ${authToken}`)
console.log(`Use this token in the Authorization header: Bearer ${authToken}`)
// Generate or use provided auth token (from CLI arg or env var) only if auth is enabled
let authToken: string | undefined
if (!options.disableAuth) {
authToken = options.authToken || process.env.AUTH_TOKEN || randomBytes(32).toString('hex')
if (!options.authToken && !process.env.AUTH_TOKEN) {
console.log(`Generated auth token: ${authToken}`)
console.log(`Use this token in the Authorization header: Bearer ${authToken}`)
}
}

// Authorization middleware
Expand Down Expand Up @@ -125,8 +133,10 @@ Examples:
})
})

// Apply authentication to all /mcp routes
app.use('/mcp', authenticateToken)
// Apply authentication to all /mcp routes only if auth is enabled
if (!options.disableAuth) {
app.use('/mcp', authenticateToken)
}

// Map to store transports by session ID
const transports: { [sessionId: string]: StreamableHTTPServerTransport } = {}
Expand Down Expand Up @@ -219,9 +229,13 @@ Examples:
console.log(`MCP Server listening on port ${port}`)
console.log(`Endpoint: http://0.0.0.0:${port}/mcp`)
console.log(`Health check: http://0.0.0.0:${port}/health`)
console.log(`Authentication: Bearer token required`)
if (options.authToken) {
console.log(`Using provided auth token`)
if (options.disableAuth) {
console.log(`Authentication: Disabled`)
} else {
console.log(`Authentication: Bearer token required`)
if (options.authToken) {
console.log(`Using provided auth token`)
}
}
})

Expand Down