mcp local server without specific client failed with keyv error
Hello, I want to test Neon MCP locally with my Python Anthropic agent.
I have installed the package:
npm install -g @neondatabase/mcp-server-neon
and then simply run it via: npx -y @neondatabase/mcp-server-neon start <YOUR_NEON_API_KEY>
I get the following errors:
error: Clients keyv error: {"err":{"address":"127.0.0.1","code":"ECONNREFUSED","errno":-111,"port":5432,"syscall":"connect"},"timestamp":"2025-05-10T17:13:29.226Z"}
error: Tokens keyv error: {"err":{"address":"127.0.0.1","code":"ECONNREFUSED","errno":-111,"port":5432,"syscall":"connect"},"timestamp":"2025-05-10T17:13:29.227Z"}
error: Refresh tokens keyv error: {"err":{"address":"127.0.0.1","code":"ECONNREFUSED","errno":-111,"port":5432,"syscall":"connect"},"timestamp":"2025-05-10T17:13:29.227Z"}
error: Authorization codes keyv error: {"err":{"address":"127.0.0.1","code":"ECONNREFUSED","errno":-111,"port":5432,"syscall":"connect"},"timestamp":"2025-05-10T17:13:29.227Z"}
error: Server error: Unexpected end of JSON input {"error":{},"timestamp":"2025-05-10T17:13:54.417Z"}
I don't have an issue with my api key, as I already used it with the API directly.
node: v22.15.0
npm: 10.9.2
Latest MacOS
Thanks for the help!3 Replies
ambitious-aqua•6mo ago
Any chance you can provide a reproduceable test case that I can share with the Dev team?
genetic-orangeOP•6mo ago
GitHub
Need Non-OAuth Agent Authentication & Startup Fails (PostgreSQL Dep...
MCP Server: Need Non-OAuth (API Key) Agent Authentication & Startup Fails (PostgreSQL Dependency?) Hello Neon Team, My primary goal is to integrate a Python Anthropic agent with a self-hosted N...
ambitious-aqua•6mo ago
I've pinged the development team.