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Your MCP server on AgentCore Runtime fails its health check at `/mcp/`. Here’s how to fix it.

by Stephen Kuenzli | Jun 2, 2026 | Development

We deployed the k9 MCP server to AWS Bedrock AgentCore Runtime. Tool calls worked for the first few minutes of every session, then started failing with MCP error -32010: Runtime health check failed or timed out. Local tests stayed green throughout. The fix is one...

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