Fix: Corrects 404 error with MCP when a reverse proxy adds a base path

langflow-ai · striver-24 · Aug 27, 2025 · Aug 27, 2025 · Aug 27, 2025 · Aug 27, 2025
commit 2b329d307e3f04997c7d255f4a6a6f7e2b1837ce
diff --git a/pyproject.toml b/pyproject.toml
@@ -66,8 +66,8 @@ dependencies = [
     "yfinance==0.2.50",
     "wolframalpha==5.1.3",
     "astra-assistants[tools]>=2.2.13,<3.0.0",
-    "composio-langchain==0.8.5",
-    "composio==0.8.5",
+    "composio-langchain>=0.8.5,<1.0.0",
+    "composio-core>=0.7.2,<1.0.0",
     "spider-client==0.1.24",
     "nltk==3.9.1",
     "lark==1.2.2",

diff --git a/src/backend/base/langflow/api/v1/mcp_projects.py b/src/backend/base/langflow/api/v1/mcp_projects.py
@@ -186,7 +186,7 @@ def get_project_sse(project_id: UUID | None) -> SseServerTransport:
 
     project_id_str = str(project_id)
     if project_id_str not in project_sse_transports:
-        project_sse_transports[project_id_str] = SseServerTransport(f"/api/v1/mcp/project/{project_id_str}/")
+        project_sse_transports[project_id_str] = SseServerTransport("./")
     return project_sse_transports[project_id_str]
 
 

diff --git a/uv.lock b/uv.lock