Enables AI tools to read and optionally write Simplenote notes via local database or API, supporting offline use on macOS.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
fast-xml-parser has an entity encoding bypass via regex injection in DOCTYPE entity names
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
fast-xml-parser affected by numeric entity expansion bypassing all entity expansion limits (incomplete fix for CVE-2026-26278)
fast-xml-parser affected by DoS through entity expansion in DOCTYPE (no expansion limit)
fast-xml-parser has stack overflow in XMLBuilder with preserveOrder
process.env. You'll be asked to provide them before it can run.SIMPLENOTE_APP_ID[](https://m8ven.ai/mcp/automattic-simplenote-mcp-ux8g44)