"Semantic Scholar" matching MCP connectors:

A semantic search server that gives AI assistants instant access to Dodo Payments documentation and knowledge base.

**ColdState Knowledge Search MCP Server** https://github.com/daniel-coldstate/coldstate-mcp Semantic search over 64.6M knowledge entries — the structured alternative to web search APIs and web scraping for LLM agents. No crawling, no rate limits, sub-3s responses. Cloud-hosted at services.coldstate.ai

Semantic search over the Stoic corpus — Marcus Aurelius' Meditations, Seneca's essays, and Epictetus' Discourses, Enchiridion and Fragments. Search by theme or citation, fetch any passage, or get the daily reflection. Public domain translations, no auth.

Persistent semantic memory for AI agents: store and recall text by meaning (RAG). x402

Cross-vendor AI memory over MCP. One semantic store, readable and writeable from every MCP client.

Apple Developer Documentation with Semantic Search, RAG, and AI reranking for MCP clients

Extractive legal answers and semantic search over the public wiki.private.law corpus

Semantic search across 50,000+ food recipes with hybrid retrieval and reranking.

Hosted persistent memory with semantic search, importance and TTL for AI agents.

Historical market memory for AI agents using semantic vector search across years of financial market data. Discover similar market regimes, price patterns, and market context for quantitative research and algorithmic trading.

Exa MCP — neural/semantic web search + content retrieval (exa.ai)

Semantic search over a 200-chunk ACLM lifestyle medicine knowledge base.

LLM caching proxy (x402 USDC on Base) - exact + semantic cache. Free health.

Shared knowledge base for AI agents. Semantic search across agents, no setup required — just a URL.

Disposable private vector search + semantic RAG for AI agents. x402 pay-per-call, no account.

Persistent cloud memory for Ai coding assistants. 33 MCP tools, 85% accuracy on LoCoMo benchmark. Semantic search, auto-skills, knowledge graph, quantum-safe encryption. Works with Claude Code, Cursor, Windsurf, and any MCP client.

Bi-temporal AI memory. 56 tools, knowledge graph, semantic search. EU-hosted, free tier.

Semantic search across Sui documentation and knowledge sources, powered by kapa.ai

Private persistent memory for Claude, ChatGPT & Gemini via MCP - semantic search, zero-code setup.

Curated knowledge API for AI agents - skill packs, semantic search, validated patterns.