A side-by-side look at the Sifter and Sylex Search MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Sifter for search & data extraction work as a local process; choose Sylex Search for search & data extraction as a local process. You can also run both side by side in one mcpServers block.
SIFTER_API_KEY, SIFTER_DEFAULT_API_KEY.AC_SUPABASE_URL, AC_SUPABASE_KEY, TRANSPORT, PORT.search.discover, search.details, search.compare.Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Search & Data Extraction | Search & Data Extraction |
| Quality signal | 55/100 · Good | 59/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | API key required | No auth required |
| Pricing | Freemium | Free |
| Required env vars | SIFTER_API_KEYSIFTER_DEFAULT_API_KEY | AC_SUPABASE_URLAC_SUPABASE_KEYTRANSPORTPORT |
| Verified owner | Community listing | Community listing |
| GitHub stars | 54 | 4 |
| Directory activity | 1 views 0 installs 0 upvotes | 6 views 0 installs 0 upvotes |
| Tools | Not listed | 10 |
| Full listing | View Sifter | View Sylex Search |
No tool names declared yet. Check the project README from the listing page.
search.discoverSearch the index by natural language query. Returns ranked results with fit scores.search.detailsGet full product data by ID — pricing, features, integrations, reviews.search.compareSide-by-side comparison of 2-5 products.search.categoriesBrowse all categories and subcategories with counts.search.alternativesFind similar products scored by relevance.search.feedbackReport issues or suggest improvements.manage.registerAdd a new product or business to the index. Returns an owner token.manage.claimVerify ownership of an existing listing via URL proof.manage.updateUpdate listing details (description, pricing, category, etc.).manage.list_mcpAdd MCP connection config so other agents can discover and connect.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": {
"sifter-ai-sifter": {
"command": "uvx",
"args": [
"sifter-mcp"
],
"env": {
"SIFTER_API_KEY": "YOUR_SIFTER_API_KEY_HERE",
"SIFTER_DEFAULT_API_KEY": "YOUR_SIFTER_DEFAULT_API_KEY_HERE"
}
}
}
}
{
"mcpServers": {
"mastadoonprime-sylex-search": {
"command": "npx",
"args": [
"-y",
"sylex-search"
],
"env": {
"AC_SUPABASE_URL": "YOUR_AC_SUPABASE_URL_HERE",
"AC_SUPABASE_KEY": "YOUR_AC_SUPABASE_KEY_HERE",
"TRANSPORT": "YOUR_TRANSPORT_HERE",
"PORT": "YOUR_PORT_HERE"
}
}
}
}