MCP ha-get-state / pv-get-forecast : en-tete neutre pour sortir d'un etat needs-auth fige

Depuis la panne n8n du 05/09, Claude Code marquait ces deux serveurs
« authentification requise » et tentait un OAuth que n8n n'offre pas.
Memes adresses sans jeton dans opencode. Une configuration differente
repart sans l'etat bloque : connexion retablie le 26/09 (0,8 kWh lu).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011uJ47NxgfpGnuuMr3f2n7Z

.mcp.json

@@ -3,7 +3,10 @@
     "n8n-mcp": {
       "type": "stdio",
       "command": "npx",
-      "args": ["-y", "n8n-mcp-server"],
+      "args": [
+        "-y",
+        "n8n-mcp-server"
+      ],
       "env": {
         "N8N_API_URL": "https://n8n.airtria.pro/api/v1",
         "N8N_API_KEY": "${N8N_API_KEY}"
@@ -11,7 +14,10 @@
     },
     "ha-get-state": {
       "type": "sse",
-      "url": "https://n8n.airtria.pro/mcp/e292867a-058f-4e00-ade3-0a38624f22cf/sse"
+      "url": "https://n8n.airtria.pro/mcp/e292867a-058f-4e00-ade3-0a38624f22cf/sse",
+      "headers": {
+        "X-Client": "claude-code-evcs"
+      }
     },
     "ha-set-helper": {
       "type": "sse",
@@ -27,7 +33,10 @@
     },
     "pv-get-forecast": {
       "type": "sse",
-      "url": "https://n8n.airtria.pro/mcp/b1c2a7dd-2d2f-4a4a-8b6f-1d9a6fd0bf03/sse"
+      "url": "https://n8n.airtria.pro/mcp/b1c2a7dd-2d2f-4a4a-8b6f-1d9a6fd0bf03/sse",
+      "headers": {
+        "X-Client": "claude-code-evcs"
+      }
     }
   }
 }