Magic MCP vs Epa MCP Server
A side-by-side look at the Magic MCP and Epa MCP Server MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Magic MCP for architecture & design work as a local process; choose Epa MCP Server for environment & nature. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Magic MCP when
- You need dedicated capabilities in the Architecture & Design domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
TWENTY_FIRST_API_KEY, API_KEY_21ST.
Choose Epa MCP Server when
- You need dedicated capabilities in the Environment & Nature domain.
- Its auth model fits you: API key required.
- You have the keys it needs:
AIRNOW_API_KEY. - You want tools like
epa_search_facilities, epa_get_facility, epa_search_violations.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Architecture & Design | Environment & Nature |
| Quality signal | 53/100 · Good | 52/100 · Good |
| Install command | Confirmed | Not confirmed yet |
| Transport | Local subprocess (stdio) | — |
| Auth | API key required | API key required |
| Pricing | Paid service | Not declared |
| Required env vars | TWENTY_FIRST_API_KEYAPI_KEY_21ST | AIRNOW_API_KEY |
| Verified owner | Community listing | Community listing |
| GitHub stars | 6,193 | 1 |
| Directory activity | 16 views 1 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | Not listed | 9 |
| Full listing | View Magic MCP | View Epa MCP Server |
Tools & capabilities
Magic MCP tools
No tool names declared yet. Check the project README from the listing page.
Epa MCP Server tools 9
epa_search_facilitiesSearch EPA-regulated facilities by location, environmental program, or compliance status across CAA, CWA, RCRA, TRI, and SDWAepa_get_facilityFull compliance profile for one facility by EPA Registry ID — compliance status, inspections, enforcement actions, penalties, and TRI IDsepa_search_violationsSearch EPA civil and criminal enforcement cases by state, program, or date rangeepa_get_air_qualityCurrent AQI observations or the issued AQI forecast from AirNowepa_get_tri_releasesPer-chemical Toxic Release Inventory data for a single facilityepa_search_tri_releasesToxic Release Inventory records across facilities in a state or countyepa_search_superfundSearch Superfund (CERCLA/SEMS) sites by location or NPL listing statusepa_search_water_systemsSearch drinking water systems (SDWIS) by state or ZIP codeepa_get_ejscreenEJScreen environmental-justice indicators for a point and buffer
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.
Magic MCP
{
"mcpServers": {
"21st-dev-magic-mcp": {
"command": "npx",
"args": [
"-y",
"@21st-dev/cli@latest"
],
"env": {
"TWENTY_FIRST_API_KEY": "YOUR_TWENTY_FIRST_API_KEY_HERE",
"API_KEY_21ST": "YOUR_API_KEY_21ST_HERE"
}
}
}
}
Epa MCP Server
No confirmed install command for Epa MCP Server yet — follow the setup steps linked from its listing page rather than a guessed package name.
Frequently asked questions
Magic MCP is categorized under Architecture & Design and uses a local stdio subprocess. Epa MCP Server belongs to Environment & Nature and uses an install path we have not confirmed yet. Pick Magic MCP for architecture & design work and Epa MCP Server 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. Epa MCP Server has no confirmed install command yet — follow its own setup instructions.
Magic MCP is listed as a paid service. Auth: api key required. Epa MCP Server has no declared pricing — check the project's own site. Auth: api key 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 21st-dev-magic-mcp and epa-mcp-server as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Magic MCP has a quality signal of 53/100 (Good) with 16 views, 1 installs and 6,193 GitHub stars. Epa MCP Server has 52/100 (Good) with 1 views, 0 installs and 1 GitHub stars.