Epa MCP Server vs Exa MCP Server
A side-by-side look at the Epa MCP Server and Exa 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 Epa MCP Server for environment & nature work; choose Exa MCP Server for search & data extraction as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
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.
Choose Exa MCP Server when
- You need dedicated capabilities in the Search & Data Extraction domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
web_search_exa, web_fetch_exa.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Environment & Nature | Search & Data Extraction |
| Quality signal | 52/100 · Good | 73/100 · Great |
| Install command | Not confirmed yet | Confirmed |
| Transport | — | Local subprocess (stdio) |
| Auth | API key required | No auth required |
| Pricing | Not declared | Free |
| Required env vars | AIRNOW_API_KEY | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 1 | 5,162 |
| Directory activity | 1 views 0 installs 0 upvotes | 10 views 0 installs 0 upvotes |
| Tools | 9 | 2 |
| Full listing | View Epa MCP Server | View Exa MCP Server |
Tools & capabilities
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
Exa MCP Server tools 2
web_search_exaSearch the web for any topic and get clean, ready-to-use content. Best for: Finding current information, news, facts, people, companies, or answering questions about any topic. Returns: Clean text content from top search results. Query tips: describe the ideal page, not keywords. "blog post comparing React and Vue performance" not "React vs Vue". Use category:people / category:company to search through Linkedin profiles / companies respectively. If highlights are insufficient, follow up with web_fetch_exa on the best URLs.web_fetch_exaRead a webpage's full content as clean markdown. Use after web_search_exa when highlights are insufficient or to read any URL. Best for: Extracting full content from known URLs. Batch multiple URLs in one call. Returns: Clean text content and metadata from the page(s).
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.
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.
Exa MCP Server
{
"mcpServers": {
"exa-labs-exa-mcp-server": {
"command": "npx",
"args": [
"-y",
"exa-mcp-server"
]
}
}
}
Frequently asked questions
Epa MCP Server is categorized under Environment & Nature and uses an install path we have not confirmed yet. Exa MCP Server belongs to Search & Data Extraction and uses a local stdio subprocess. Pick Epa MCP Server for environment & nature work and Exa MCP Server for search & data extraction.
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.
Epa MCP Server has no declared pricing — check the project's own site. Auth: api key required. Exa MCP Server 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 epa-mcp-server and exa-labs-exa-mcp-server as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Epa MCP Server has a quality signal of 52/100 (Good) with 1 views, 0 installs and 1 GitHub stars. Exa MCP Server has 73/100 (Great) with 10 views, 0 installs and 5,162 GitHub stars.