Airnow vs Epa Envirofacts
A side-by-side look at the Airnow and Epa Envirofacts MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Airnow for environment & nature work as a local process; choose Epa Envirofacts for environment & nature as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Airnow when
- You need dedicated capabilities in the Environment & Nature domain.
- You prefer a local stdio subprocess transport.
Choose Epa Envirofacts when
- You need dedicated capabilities in the Environment & Nature domain.
- You prefer a local stdio subprocess transport.
- You want tools like
facilities_by_zip, facilities_by_state, get_facility.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Environment & Nature | Environment & Nature |
| Quality signal | 43/100 · Fair | 44/100 · Fair |
| 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 | Not listed | 3 |
| Full listing | View Airnow | View Epa Envirofacts |
Tools & capabilities
Airnow tools
No tool names declared yet. Check the project README from the listing page.
Epa Envirofacts tools 3
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.
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.
Airnow
{
"mcpServers": {
"airnow": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-airnow"
]
}
}
}
Epa Envirofacts
{
"mcpServers": {
"epa-envirofacts": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-epa-envirofacts"
]
}
}
}
Frequently asked questions
Airnow is categorized under Environment & Nature and uses a local stdio subprocess. Epa Envirofacts belongs to Environment & Nature and uses a local stdio subprocess. Pick Airnow for environment & nature work and Epa Envirofacts for environment & nature.
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.
Airnow has no declared pricing — check the project's own site. Epa Envirofacts 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 airnow and epa-envirofacts as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Airnow has a quality signal of 43/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. Epa Envirofacts has 44/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.