Fast Filesystem MCP vs Silica Core
A side-by-side look at the Fast Filesystem MCP and Silica Core MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Fast Filesystem MCP for file systems work as a local process; choose Silica Core 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?
Choose Fast Filesystem MCP 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
fast_list_allowed_directories, fast_read_file, fast_read_multiple_files.
Choose Silica Core when
- You need dedicated capabilities in the File Systems domain.
- You prefer a local stdio subprocess transport.
- You want tools like
silica_files, silica_search, silica_read.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | File Systems | File Systems |
| Quality signal | 61/100 · Good | 55/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | No auth required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 64 | 68 |
| Directory activity | 2 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 25 | 5 |
| Full listing | View Fast Filesystem MCP | View Silica Core |
Tools & capabilities
Fast Filesystem MCP tools 25
fast_list_allowed_directoriesLists the allowed directoriesfast_read_fileReads a file (with auto-chunking support)fast_read_multiple_filesReads the content of multiple files simultaneously (supports sequential reading)fast_write_fileWrites or modifies a file (provides emoji guidelines)fast_large_write_fileReliably writes large files (with streaming, retry, backup, and verification features)fast_list_directoryLists the contents of a directory (with auto-chunking and pagination support)fast_get_file_infoGets detailed information about a file or directoryfast_create_directoryCreates a directoryfast_search_filesSearches for files (by name/content) - supports auto-chunking, regex, context, and line numbersfast_search_codeSearches for code (ripgrep-style) - provides auto-chunking, line numbers, and contextfast_get_directory_treeGets the directory tree structurefast_get_disk_usageGets disk usage information- +13 more on the listing page
Silica Core tools 5
silica_filesthe inventory and what the index did with each file: `indexed`, `changed`, `excluded`, `failed`, `unconvertedsilica_searchranked passages: path, section, line, BM25, matched terms, `coverage`, and the query terms absent from the corpussilica_reada slice by lines or by heading (a page, in a PDF), the outline, and a `version` to carry forwardsilica_code_packan AST context pack for one source file inside a character budgetsilica_write_noteone atomic write, linted for structure and unresolved wikilinks
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.
Fast Filesystem MCP
{
"mcpServers": {
"efforthye-fast-filesystem-mcp": {
"command": "npx",
"args": [
"-y",
"fast-filesystem-mcp"
]
}
}
}
Silica Core
{
"mcpServers": {
"silica-core": {
"command": "uvx",
"args": [
"silica-core"
]
}
}
}
Frequently asked questions
Fast Filesystem MCP is categorized under File Systems and uses a local stdio subprocess. Silica Core belongs to File Systems and uses a local stdio subprocess. Pick Fast Filesystem MCP for file systems work and Silica Core 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.
Fast Filesystem MCP is listed as free. Auth: no auth required. Silica Core has no declared pricing — check the project's own site. 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 efforthye-fast-filesystem-mcp and silica-core as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Fast Filesystem MCP has a quality signal of 61/100 (Good) with 2 views, 0 installs and 64 GitHub stars. Silica Core has 55/100 (Good) with 0 views, 0 installs and 68 GitHub stars.