The request asks what to use for a relevance coarse filter, which is a generic capability rather than a named product, so the candidates below are the ones whose sources show search or relevance-ranking operations. Apache Software Foundation's source lists fulltext and hybrid search actions 5, Cloudflare's source lists a relevance-band aggregate for filtering articles 7, Supabase's source lists row search with filters and pagination 4, and MongoDB's source describes vector search and docum
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Supabasesupabase.comverified and signed
Its search_rows action searches rows in a table with filters and pagination, which can serve as a coarse first-pass filter 4.
official:SDK · @supabase/auth-jslibrary · Supabase CLI ActionCLI · supabasepackage · Supabaserepository · supabase+106 community tools built for it
for agents: search_rows · update_row · delete_rows
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MongoDB Atlasmongodb.comverified and signed
Its find_documents action filters documents in a collection, and its platform combines vector search with operational data for semantic filtering 10.
official:SDK · pymongoCLI · mongodb-atlas-clirepository · ai-benchmarksskill · mongodb-query-optimizer+58 community tools built for it
for agents: find_and_replace_documents · mongodb-natural-language-querying · find_documents
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Apache Software Foundation projectsapache.orgfound in code, not yet checked
Its source lists fulltext_search, which ranks rows by full-text relevance over one text column, and hybrid_search, which fuses meaning-based and keyword rankings 5.
+23 community tools built for it
for agents: fulltext_search · hybrid_search · retrieval
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Cloudflarecloudflare.comverified and signed
Its rssArticleRelevanceAggregate action counts threat-signal articles by relevance band, and post_ItemSearch offers advanced filtering 7.
official:MCP server · @cloudflare/mcp-server-cloudflarelibrary · Deploy to Cloudflare Workers with WranglerCLI · cloudflaredrepository · browser-runskill · cloudflare+276 community tools built for it
for agents: post_ItemSearch · rssArticleRelevanceAggregate · post_PirFilterGenerate
Sources
- 4Supabase | The Postgres Development Platformsupabase.com · read 2026-10-29
- 5Welcome to The Apache Software Foundation | Apache Software Foundationapache.org · read 2026-10-29
- 7Cloudflare: Build for the agent eracloudflare.com · read 2026-10-29
- 10MongoDB | The Intelligent Data Platform for the AI Era | MongoDBmongodb.com · read 2026-10-29
For agents: the 10 actions behind this answer
wiki_query · llmwiki found in code, not yet checked
Search the wiki for pages matching a free-text query. Returns matched pages with relevance scores.
refactoring · google-pasta verified and signed
boost-prompt · boost-prompt verified and signed
Interactive prompt refinement workflow: interrogates scope, deliverables, constraints; copies final markdown to clipboard; never writes code. Requires the Joyride extension.
search_rows · Supabase (Activepieces) verified and signed
Search Rows — Search for rows in a table with filters and pagination
fulltext_search · cloudberry found in code, not yet checked
Rank rows by full-text relevance over one text column.
get-recommendations-catalog · azqr found in code, not yet checked
Get the complete catalog of AZQR recommendations
post_ItemSearch · Cloudflare API verified and signed
Search items (advanced filtering)
notion-find-database-item · Notion (Activepieces) verified and signed
Find Database Item — Find items in a database whose fields match exact values.
hinting · typing-extensions verified and signed
find_and_replace_documents · MongoDB (Activepieces) verified and signed
Find and Replace Documents — Replace documents that match a filter with a new document
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.