diff --git a/src/lib/node-oauth-client-provider.ts b/src/lib/node-oauth-client-provider.ts
index 806f3af..e074e13 100644
--- a/src/lib/node-oauth-client-provider.ts
+++ b/src/lib/node-oauth-client-provider.ts
@@ -22,18 +22,23 @@ export class NodeOAuthClientProvider implements OAuthClientProvider {
   private clientUri: string
   private softwareId: string
   private softwareVersion: string
-
+  private clientId: string | undefined
+  private clientSecret: string | undefined
+  private scope: string | undefined
   /**
    * Creates a new NodeOAuthClientProvider
    * @param options Configuration options for the provider
    */
-  constructor(readonly options: OAuthProviderOptions) {
+  constructor(readonly options: OAuthProviderOptions & { clientId?: string, clientSecret?: string, scope?: string }) {
     this.serverUrlHash = getServerUrlHash(options.serverUrl)
     this.callbackPath = options.callbackPath || '/oauth/callback'
     this.clientName = options.clientName || 'MCP CLI Client'
     this.clientUri = options.clientUri || 'https://github.com/modelcontextprotocol/mcp-cli'
     this.softwareId = options.softwareId || '2e6dc280-f3c3-4e01-99a7-8181dbd1d23d'
     this.softwareVersion = options.softwareVersion || MCP_REMOTE_VERSION
+    this.clientId = options.clientId
+    this.clientSecret = options.clientSecret
+    this.scope = options.scope
   }
 
   get redirectUrl(): string {
@@ -50,6 +55,7 @@ export class NodeOAuthClientProvider implements OAuthClientProvider {
       client_uri: this.clientUri,
       software_id: this.softwareId,
       software_version: this.softwareVersion,
+      scope: this.scope,
     }
   }
 
@@ -59,6 +65,12 @@ export class NodeOAuthClientProvider implements OAuthClientProvider {
    */
   async clientInformation(): Promise<OAuthClientInformation | undefined> {
     // log('Reading client info')
+    if (this.clientId) {
+      return {
+        client_id: this.clientId,
+        client_secret: this.clientSecret,
+      }
+    }
     return readJsonFile<OAuthClientInformation>(this.serverUrlHash, 'client_info.json', OAuthClientInformationSchema)
   }
 
diff --git a/src/lib/utils.ts b/src/lib/utils.ts
index 572550c..d9108f3 100644
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -392,9 +392,49 @@ export async function findAvailablePort(preferredPort?: number): Promise<number>
 export async function parseCommandLineArgs(args: string[], defaultPort: number, usage: string) {
   // Process headers
   const headers: Record<string, string> = {}
+  let clientId: string | undefined = undefined
+  let clientSecret: string | undefined = undefined
+  let callbackPath: string | undefined = undefined
+  let scope: string | undefined = undefined
   let i = 0
   while (i < args.length) {
-    if (args[i] === '--header' && i < args.length - 1) {
+    if (args[i] === '--client-id' && i < args.length - 1) {
+      const value = args[i + 1]
+      if (value) {
+        clientId = value
+      } else {
+        log('Warning: ignoring empty client-id argument')
+      }
+      args.splice(i, 2)
+      continue
+    } else if (args[i] === '--client-secret' && i < args.length - 1) {
+      const value = args[i + 1]
+      if (value) {
+        clientSecret = value
+      } else {
+        log('Warning: ignoring empty client-secret argument')
+      }
+      args.splice(i, 2)
+      continue
+    } else if (args[i] === '--callback-path' && i < args.length - 1) {
+      const value = args[i + 1]
+      if (value) {
+        callbackPath = value
+      } else {
+        log('Warning: ignoring empty callback-path argument')
+      }
+      args.splice(i, 2)
+      continue
+    } else if (args[i] === '--scope' && i < args.length - 1) {
+      const value = args[i + 1]
+      if (value) {
+        scope = value
+      } else {
+        log('Warning: ignoring empty scope argument')
+      }
+      args.splice(i, 2)
+      continue
+    } else if (args[i] === '--header' && i < args.length - 1) {
       const value = args[i + 1]
       const match = value.match(/^([A-Za-z0-9_-]+):(.*)$/)
       if (match) {
@@ -468,7 +508,7 @@ export async function parseCommandLineArgs(args: string[], defaultPort: number,
     })
   }
 
-  return { serverUrl, callbackPort, headers, transportStrategy }
+  return { serverUrl, callbackPort, headers, transportStrategy, callbackPath, clientId, clientSecret, scope }
 }
 
 /**
diff --git a/src/proxy.ts b/src/proxy.ts
index 7263a95..94cf1c5 100644
--- a/src/proxy.ts
+++ b/src/proxy.ts
@@ -32,6 +32,10 @@ async function runProxy(
   callbackPort: number,
   headers: Record<string, string>,
   transportStrategy: TransportStrategy = 'http-first',
+  callbackPath?: string,
+  clientId?: string,
+  clientSecret?: string,
+  scope?: string,
 ) {
   // Set up event emitter for auth flow
   const events = new EventEmitter()
@@ -46,7 +50,11 @@ async function runProxy(
   const authProvider = new NodeOAuthClientProvider({
     serverUrl,
     callbackPort,
+    callbackPath,
     clientName: 'MCP CLI Proxy',
+    clientId: clientId,
+    clientSecret: clientSecret,
+    scope: scope,
   })
 
   // Create the STDIO transport for local connections
@@ -136,8 +144,8 @@ to the CA certificate file. If using claude_desktop_config.json, this might look
 
 // Parse command-line arguments and run the proxy
 parseCommandLineArgs(process.argv.slice(2), 3334, 'Usage: npx tsx proxy.ts <https://server-url> [callback-port]')
-  .then(({ serverUrl, callbackPort, headers, transportStrategy }) => {
-    return runProxy(serverUrl, callbackPort, headers, transportStrategy)
+  .then(({ serverUrl, callbackPort, headers, transportStrategy, callbackPath, clientId, clientSecret, scope }) => {
+    return runProxy(serverUrl, callbackPort, headers, transportStrategy, callbackPath, clientId, clientSecret, scope)
   })
   .catch((error) => {
     log('Fatal error:', error)