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Compare scores, permissions, risks, and fit in one decision-focused table.

DimensionHDF5 MCP ServerHDF5 scientific data access for AI agents with AI-powered insights.Obsidian Web MCPSecure remote access to your Obsidian vault over HTTPS with OAuth 2.0 authentication.
FMRS63 / 100 · C68 / 100 · C
Reliability10 / 209 / 20
Security and permissions13 / 2016 / 20
Maintenance14 / 2014 / 20
Documentation12 / 2017 / 20
Setup experience14 / 2012 / 20
Best for
  • Scientists
  • Data scientists
  • AI agents working on scientific computing
  • Users who want secure remote access to their Obsidian vault from any device.
  • Integrating Claude.ai (web) or mobile with Obsidian.
  • Those needing concurrent writes with Obsidian Sync without file conflicts.
Not for
  • Scenarios where HDF5 files are not used
  • Users who want to directly manipulate databases or CSV files
  • Users who only need local stdio MCP access without remote capabilities.
  • Those unwilling to set up an OAuth password or use a Cloudflare Tunnel.
  • Users with extremely high security requirements who distrust network exposure (though encrypted).
Required permissions
  • Access to local file system to read HDF5 files
  • May create temporary files or caches
  • Network access if remote files are required
  • Read and write files in the directory specified by VAULT_PATH.
  • Perform file operations (move, delete with soft delete to .trash).
  • Create daily notes, write binary files.
  • Maintain an in-memory frontmatter index, potentially modifying index files.
  • Access the network (for Cloudflare Tunnel, heartbeat URLs).
Risks and side effects
  • Potential memory issues with very large HDF5 files
  • Parallel operations may cause I/O contention
  • Credential leakage: exposed OAuth password or MCP token could allow unauthorized access.
  • Path traversal mitigation is not infallible; keep updated.
  • Extension system is not sandboxed; loading untrusted extensions could be risky.
  • Audit log is best-effort and not tamper-evident; records may be dropped at runtime.
  • Misconfiguration may cause the server to fail to start or expose vulnerabilities.
Supported clientsClaude DesktopClaude Desktop, Claude Mobile, Claude Web
Tools2720