Fhirhydrant vs Filesystem

A side-by-side look at the Fhirhydrant and Filesystem MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Fhirhydrant logoFhirhydrantBiology & Bioinformatics · Local subprocess (stdio)FHIR MCP server with SMART Backend Services, response compaction, FHIRPath, and guarded writes.55GoodAuth: not declaredFilesystem logoFilesystemFile Systems · Local subprocess (stdio)Secure file operations with configurable access controls.85ExcellentAuth: no auth required

Verdict: choose Fhirhydrant for biology & bioinformatics work as a local process; choose Filesystem for file systems as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Fhirhydrant logoChoose Fhirhydrant when

  • You need dedicated capabilities in the Biology & Bioinformatics domain.
  • You prefer a local stdio subprocess transport.
  • You want tools like terminology_lookup, code_search.
Explore Fhirhydrant

Filesystem logoChoose Filesystem when

  • You need dedicated capabilities in the File Systems domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: No auth required.
  • You want tools like path, head, tail.
Explore Filesystem

Feature & specification comparison

Rows where the two servers differ are marked.

SpecFhirhydrant logoFhirhydrantFilesystem logoFilesystem
CategoryBiology & BioinformaticsFile Systems
Quality signal55/100 · Good85/100 · Excellent
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNo auth required
PricingNot declaredFree
Required env varsNone listedNone listed
Verified ownerCommunity listing Verified
GitHub stars1891,512
Directory activity 1 views 0 installs 0 upvotes 11 views 0 installs 0 upvotes
Tools217

Tools & capabilities

Fhirhydrant tools 2

  • terminology_lookupLooks up one LOINC or SNOMED CT code
  • code_searchSearches codes by text filter with paging support

Filesystem tools 17

  • path
  • head
  • tail
  • paths
  • content
  • edits
  • oldText
  • newText
  • dryRun
  • sortBy
  • source
  • destination
  • +5 more on the listing page

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Fhirhydrant

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "fhirhydrant": {
      "command": "npx",
      "args": [
        "-y",
        "fhirhydrant"
      ]
    }
  }
}

Filesystem

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-filesystem"
      ]
    }
  }
}

Frequently asked questions

Fhirhydrant is categorized under Biology & Bioinformatics and uses a local stdio subprocess. Filesystem belongs to File Systems and uses a local stdio subprocess. Pick Fhirhydrant for biology & bioinformatics work and Filesystem for file systems.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Fhirhydrant has no declared pricing — check the project's own site. Filesystem is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add fhirhydrant and filesystem as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Fhirhydrant has a quality signal of 55/100 (Good) with 1 views, 0 installs and 18 GitHub stars. Filesystem has 85/100 (Excellent) with 11 views, 0 installs and 91,512 GitHub stars.