Search & Knowledge MCP Servers

Read-only Google Ads Keyword Planner MCP server for keyword ideas and historical metrics.

A powerful interface for extending AI capabilities through remote control, calculations, email operations, knowledge search, and more.

MCP memory server for Claude Code — knowledge graph in SQLite, local ONNX embeddings, token-budgeted retrieval

MCP server for AgentRank / AgentIndex — search real, verifiable businesses for AI agents.

Veterans benefits and VA claims reference: VA disability ratings, compensation rates, 38 CFR search

Open-Source MCP Server Passport & Tool Signature Knowledge Base

Private on-device memory & retrieval for AI assistants — offline vector + lexical search.

massa-ai MCP server - Semantic code search, memory, and context compression via Model Context Protocol

An MCP server that uses a knowledge graph to store and recall structured memory for AI models

Court practice and FAS case cards via hosted API. Coverage depends on the connected service.

Website tech stack (7,600+ technologies) and screenshots for any company site, via Apify.

MCP server for Zep Cloud — long-term memory for AI agents

MCP server for Discrete Mathematics: Boolean Logic, Algorithms, Number Theory, Cryptography. 21 AI-ready tools for education and research.

Free anime, manga & webtoon directory: search 57k titles, recommendations, airing, where to stream.

Search, compare, and blend structured visual aesthetics, palettes, and creative directions.

MCP server for Hybrid Search - provides read-only access to collections and chunks via FastAPI backend

Keyless MCP server for icanhazdadjoke: random dad jokes, search, lookup by id.

MCP server for Open Knowledge Format (OKF) bundles — expose okf-ingest's deterministic consume verbs (search, context, graph impact, diff, doctor) as agent tools.

WeKnora MCP Server - Model Context Protocol server for WeKnora API

AI Collective Memory - MCP server that gives your AI a persistent memory across sessions

Semantic search MCP server for Claude Code conversation sessions

Agent-callable canine genomics: an open MCP server and REST API over the Sniff Atlas, breed-stratified allele frequencies for 9.67M variants genome-wide across 188 dog breeds, with SnpEff annotation, Pangolin splice values, phyloP conservation and a variant, gene, breed and disease knowledge graph. Assigns no pathogenicity to any variant.

Pay-per-use APIs for agents: web research, data lookups, and metered endpoints billed to credits.

Reference MCP server for AMP — expose AI memories via Model Context Protocol