Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,874 servers
io.github.mrfentmen/wikidata-mcp
Wikidata entity search, lookup, and bounded SPARQL.
Bankruptcy Observer
US business bankruptcy MCP: filings, dockets, documents, case summaries. Free tier + subscription.
Chorus Research
Create surveys, launch them to real human respondents, and read the responses.
MCI Scout
Free search and declared-price review of public MCP and x402 service catalogs. Experimental pilot.
Memchats
Search your chat history and contact memory, and ask advisors about your conversations.
Saylor Innovations: pay-per-call data
271 x402 agent APIs: research, law, medicine, science, finance, public data, security and crypto.
Lightdrift Images MCP
Image search for AI agents: 1.85M openly licensed images with source, license and attribution.
Singapore ACRA Company & UEN Lookup
Singapore ACRA (Bizfile) company search by name, UEN, SSIC industry code, entity type and status.
RAFSOFT.NET — Faktura VAT
Knowledge base, pricing, FAQ and KSeF 2.0 info for Faktura VAT 2026/2027 (Polish invoicing).
com.getagentictools/catalog
Search 41,000+ agent skills, MCP servers, plugins & loops — real install counts and stars.
Bloody Hopes Historical Critic
Read historical ballads, inspect critical Voices, and publish evidence-based research.
KZSalesHub Knowledge
B2B sales, marketing, AI and management knowledge base for Kazakhstan and Central Asia (RU).
Joint Genesis Research
Physician reviewed research on joint pain, osteoarthritis, and relief options from Dr. Mark Weis
Forward Deployed
Research, strategy, financial models and decks, priced and approved per job, in your AI assistant
OpenAlex
Search 250M+ research papers, citations and author profiles. Free OpenAlex account; OAuth sign-in.
com.clauderecall/recall
Persistent memory for Claude Code and Codex. Search and re-inject context from any session.
Lead Strategist: Danish CVR company data
Danish company data (CVR) and annual-report financials for B2B lead research. Read-only.
Arcology Knowledge Node
Collaborative engineering KB for a mile-high city. 9 tools, 8 domains, 32 entries.
goodrecmovies
Movie and series ranking as MCP tools: top titles, search, lookup by IMDb id. Free, no key.
Nôm Na Việt — Hán Nôm Dictionary
Vietnamese Chữ Nôm & Hán: lookup, search, conversion, and original Đại Nam Quấc âm tự vị entries.
gotlinq
Save, search and shorten links from chat: bookmarks, short links, QR codes, UTM links, invoices.
Elements Live
Research intensity for 118 elements and topics, ~10M papers. Free element scores; x402 pay-per-call.
Redpine Connect
Full-text licensed and open-access research, cited to its source. Publishers are paid per use.
Handsontable Docs MCP Server
Semantic search over Handsontable and HyperFormula docs, API reference, release notes, and issues.