Carbon vs Filesystem
A side-by-side look at the Carbon and Filesystem MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Carbon for industrial & iot work over a hosted endpoint; 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?
Choose Carbon when
- You need dedicated capabilities in the Industrial & IoT domain.
- You prefer a remote HTTP/SSE transport.
- You have the keys it needs:
CARBON_API_KEY.
Choose 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.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Industrial & IoT | File Systems |
| Quality signal | 56/100 · Good | 85/100 · Excellent |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | Not declared | No auth required |
| Pricing | Free | Free |
| Required env vars | CARBON_API_KEY | None listed |
| Verified owner | Community listing | Verified |
| GitHub stars | 2,756 | 91,512 |
| Directory activity | 3 views 0 installs 0 upvotes | 11 views 0 installs 0 upvotes |
| Tools | Not listed | 17 |
| Full listing | View Carbon | View Filesystem |
Tools & capabilities
Carbon tools
No tool names declared yet. Check the project README from the listing page.
Filesystem tools 17
pathheadtailpathscontenteditsoldTextnewTextdryRunsortBysourcedestination- +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.
Carbon
{
"mcpServers": {
"carbon-2": {
"url": "https://docs.carbon.ms/api/mcp"
}
}
}
Filesystem
{
"mcpServers": {
"filesystem": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-filesystem"
]
}
}
}
Frequently asked questions
Carbon is categorized under Industrial & IoT and uses a remote HTTP/SSE transport. Filesystem belongs to File Systems and uses a local stdio subprocess. Pick Carbon for industrial & iot 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.
Carbon is listed as free. 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 carbon-2 and filesystem as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Carbon has a quality signal of 56/100 (Good) with 3 views, 0 installs and 2,756 GitHub stars. Filesystem has 85/100 (Excellent) with 11 views, 0 installs and 91,512 GitHub stars.