From 7e39aa9ae34a4ea18a7467224a7e7ce62cbd40d3 Mon Sep 17 00:00:00 2001
From: Brendan Irvine-Broque <birvine-broque@cloudflare.com>
Date: Sat, 29 Mar 2025 15:34:39 -0700
Subject: [PATCH] Document ~/.mcp-auth

To help people who get stuck with `mcp-remote`
---
 README.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/README.md b/README.md
index 3775d21..79f220a 100644
--- a/README.md
+++ b/README.md
@@ -157,3 +157,15 @@ For bash on WSL:
 or Powershell:
 
 `Get-Content "C:\Users\YourUsername\AppData\Local\Claude\Logs\mcp.log" -Wait -Tail 20`
+
+
+## Debugging
+
+If you encounter the following error, returned by the `/callback` URL:
+
+```
+Authentication Error
+Token exchange failed: HTTP 400
+```
+
+You can run `rm -rf ~/.mcp-auth` to clear any locally stored state and tokens.