Science vs Exa MCP Server
A side-by-side look at the Science 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 Science for aerospace & astrodynamics work as a local process; 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 Science when
- You need dedicated capabilities in the Aerospace & Astrodynamics domain.
- You prefer a local stdio subprocess transport.
- You want tools like
get_iss_location, get_earthquakes, get_air_quality.
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 | Aerospace & Astrodynamics | Search & Data Extraction |
| Quality signal | 56/100 · Good | 73/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | No auth required |
| Pricing | Not declared | Free |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 5,163 |
| Directory activity | 1 views 0 installs 0 upvotes | 11 views 0 installs 0 upvotes |
| Tools | 4 | 2 |
| Full listing | View Science | View Exa MCP Server |
Tools & capabilities
Science tools 4
get_iss_locationFetch the International Space Station's current latitude, longitude, and Unix timestamp from the Open Notify API. No inputs required; returns a real-time position fix.get_earthquakesRetrieve up to 20 globally recent earthquakes from the USGS FDSN service, filtered by lookback period (1–30 days, default 1) and minimum magnitude (default 4.0). Returns magnitude, location name, depth (km), coordinates, time, and tsunami warning flag.get_air_qualityCheck current air quality at a latitude/longitude. Returns US AQI score and category plus PM2.5, PM10, ozone, NO2, and CO levels.get_apodGet NASA's Astronomy Picture of the Day with image URL, title, and explanation. Optionally specify a date (e.g., '2024-01-15').
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.
Science
{
"mcpServers": {
"science": {
"command": "npx",
"args": [
"-y",
"@pipeworx/mcp-science"
]
}
}
}
Exa MCP Server
{
"mcpServers": {
"exa-labs-exa-mcp-server": {
"command": "npx",
"args": [
"-y",
"exa-mcp-server"
]
}
}
}
Frequently asked questions
Science is categorized under Aerospace & Astrodynamics and uses a local stdio subprocess. Exa MCP Server belongs to Search & Data Extraction and uses a local stdio subprocess. Pick Science for aerospace & astrodynamics 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.
Science has no declared pricing — check the project's own site. 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 science 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, Science has a quality signal of 56/100 (Good) with 1 views, 0 installs and 0 GitHub stars. Exa MCP Server has 73/100 (Great) with 11 views, 0 installs and 5,163 GitHub stars.