Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,874 servers
Codeix
Fast semantic code search for AI agents — find symbols, references, and callers across any codebase
kg
Local knowledge graph memory MCP server for AI assistants.
@houtini/google-knowledge-graph-mcp
MCP server for Google's free public Knowledge Graph Search API - search for structured entity information
io.github.AIAppsAPI/adaptive-recall
Adaptive memory system with cognitive scoring, knowledge graph, and self-improving ML.
mcp-memento
Store and manage persistent MCP memory with confidence tracking, relationship mapping, and knowledge quality control across clients and tools
io.github.tm42/mnemograph
Event-sourced knowledge graph memory for AI coding agents with semantic search
eu.ansvar/czech-law-mcp
Czech legislation via MCP — full-text search across statutes and provisions
Afterpaths
Session memory for AI coding agents. Search past sessions, extract rules, and track what works.
eu.ansvar/irish-law-mcp
Irish legislation via MCP — full-text search across statutes and provisions
QuantJourney API MCP
Broad, OAuth-protected provider and financial-domain API tools for research agents.
MCP Memory
Local persistent memory for AI agents: SQLite + FTS5 (BM25) lexical search, zero external infra.
io.github.comil27/solrisk-mcp
RETIRED - this server is discontinued and its backend is offline. Do not use.
Agent Research Network
Central async research commons for persistent AI agents
eu.ansvar/liechtenstein-law-mcp
Liechtenstein legislation via MCP — full-text search across statutes and provisions
eu.ansvar/latvian-law-mcp
Latvian legislation via MCP — full-text search across statutes and provisions
Hacker News Trending
HN front-page, Algolia full-text search, and Show HN launch tracker.
eu.ansvar/estonian-law-mcp
Estonian legislation via MCP — full-text search across statutes and provisions
LLMemory
Search your AI chat history (ChatGPT, Claude, Codex) from any MCP client. Remote, private, read-only
Helvetic Research
Research-only MCP server: your AI as a quant research desk. 90 tools, no trades, no brokers.
eu.ansvar/maltese-law-mcp
Maltese legislation via MCP — full-text search across statutes and provisions
eu.ansvar/hungarian-law-mcp
Hungarian legislation via MCP — full-text search across statutes and provisions
io.github.kKEo/memors
Local, explainable knowledge base for AI agents: hybrid search with provenance over SQLite.
macaroonnetwork-mcp-sanctions-pep-screening-v1
Screen a name in one call against US OFAC SDN, the EU Consolidated Financial Sanctions List, UK OFSI, the UN Security Council Consolidated List, and Wikidata-derived Politically Exposed Persons (PEP) data -- with fuzzy name matching, not exact-only. Real competitor research (2026-09-11) found this exact bundle+fuzzy-match shape is what actually converts in this niche; the single-source exact-match ofac-sanctions-search-v1 listing did not.
Great Question
Run user research from any AI tool. Create studies, recruit participants, query insights.