I'm experiencing a 424 "Failed Dependency" error when loading tools for the HubSpot MCP server through the OpenAI Responses API. This issue is specific to HubSpot, all my other Composio MCP servers are working fine. My HubSpot token works correctly when tested directly via Postman I've tried both OAuth and private app tokens with the same result I've recreated the HubSpot MCP server multiple times, issue persists Most notably: I had a working HubSpot MCP server that functioned fine until today, when it suddenly started returning 424 errors Any ideas what could be going on here? Happy to provide connection IDs, logs, or any other information that would help troubleshoot. Thanks!

Hey @walsheey, thanks for flagging this. We are checking this issue.

@Uday any updates?

Hey @walsheey, we found [this](https://community.openai.com/t/error-when-attempting-to-connect-my-remote-mcp-in-new-agent-builder/1361613) while investigating the error. It looks like " ***424 "Failed Dependency" ***" error is from OpenAI.

Ah, I see. Thank you for taking the time to check this out.