A side-by-side look at the Epa Envirofacts and Usgs Earthquakes MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Epa Envirofacts for environment & nature work as a local process; choose Usgs Earthquakes for environment & nature as a local process. You can also run both side by side in one mcpServers block.
facilities_by_zip, facilities_by_state, get_facility.search_earthquakes, get_earthquake, count_earthquakes.Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Environment & Nature | Environment & Nature |
| Quality signal | 49/100 · Fair | 52/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 0 |
| Directory activity | 0 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 3 | 3 |
| Full listing | View Epa Envirofacts | View Usgs Earthquakes |
facilities_by_zipList EPA-regulated facilities in a US ZIP code from the EPA Facility Registry Service (FRS). Returns each facility once with all the EPA programs (RCRAINFO, NPDES, AIRS, TRI, etc.) it's regulated under. Keyless.facilities_by_stateList EPA-regulated facilities in a US state (and optionally a city) from the EPA Facility Registry Service (FRS). Returns each facility once with all the EPA programs it is regulated under. Keyless.get_facilityLook up one EPA-regulated facility by its FRS Registry ID. Returns the facility detail plus a programs[] array listing every EPA program (RCRAINFO, NPDES, AIRS, TRI, etc.) the site is regulated under. Keyless.search_earthquakesSearch the USGS earthquake catalog (FDSNWS event API) for real-time and historical seismic events. Filter by time window, magnitude, depth, and a circular geographic area. Returns a compact list of quakes with magnitude, location, time, coordinates, depth, and significance. Keyless.get_earthquakeGet full detail for a single earthquake by its USGS event id (e.g. "us7000n7n8"). Returns magnitude, location, time, depth, felt reports, tsunami flag, PAGER alert level, status, contributing networks, and detail URLs. Keyless.count_earthquakesCount earthquakes matching a filter without returning the events — fast for questions like "how many M5+ quakes in the last month near X". Same filters as search_earthquakes (time, magnitude, circular area). Keyless.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.
{
"mcpServers": {
"epa-envirofacts": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-epa-envirofacts"
]
}
}
}
{
"mcpServers": {
"usgs-earthquakes": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-usgs-earthquakes"
]
}
}
}