Getting this error when using NOTION MCP…. Error: Invalid tool schema for: Notion.NOTION_APPEND_BLOCK_CHILDREN Context: Non-retryable error during stream processing

Hey, which MCP client are you using?

OpenAI AgentSDK with composio Notion MCP

Got it, I was able to reproduce the issue & have escalated it internally.

Thanks

Hey @joelcodes, The issue has been fixed, but while debugging, we discovered an issue from OpenAI agents. This resulted in the tools throwing an error message: “*Error code: 424 - {‘error’: {‘message’: “Error retrieving tool list from MCP server: ‘Notion’. Http status code: 424 (Failed Dependency)*”. We dug deeper and found that the issue is on OpenAI’s side. Many users who are using MCP servers with the OpenAI agents SDK are facing a similar issue.” ref: https://community.openai.com/t/error-when-attempting-to-connect-my-remote-mcp-in-new-agent-builder/1361613/20

Thanks Uday this has been a long standing issue for me. It’s probably worth creating an issue on their GitHub about this as well so they can take a look at it. It’s very problematic, tho I have been seeing it less lately