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Topic starter
I'm encountering an issue while trying to connect the MCP tool with callin.io via callin.io. Today, I'm receiving an HTTP request 500 error.
- Tool ID:
cc4f16bb-f2af-434f-83e8-33316bc6bb67 - MCP URL link: https://waitsmart.app.n8n.cloud/mcp/6114acac-a3aa-4404-8d1b-6640256c78f4/sse
- Response Body error: {
"error": "Failed to connect to MCP server: SSE error: Failed to fetch"
} - Request failed with status: 500
Posted : 20/07/2025 11:36 am
Hi, welcome to the community!
If you are using the latest stable callin.io version (1.102.x), you no longer need to append the /sse path.
Try removing the /sse path from your URL, and this should hopefully resolve your issue.
Hope this helps, and please consider marking my response as the solution. Thank you!
Posted : 20/07/2025 11:53 am
Have you activated the MCP workflow yet?
Posted : 20/07/2025 1:37 pm
Topic starter
Yes, it is active.
Posted : 20/07/2025 2:52 pm