"Creating a Graph on Vector Knowledge Base Using CozoDB" matching MCP servers:

Enables building and querying vector-based knowledge graphs with node and edge management and semantic search.

MCP server for querying versioned C2PA specification knowledge graphs, enabling AI agents to browse entity definitions, validation rules, and version diffs via natural language.

Enables searching Google's Knowledge Graph for real-world entities via two tools: search by query or lookup by Machine ID, returning structured data including entity types, descriptions, and URLs.

Provides onchain tools for Claude AI to interact with the Base blockchain and Coinbase API, enabling wallet management, fund transfers, and smart contract deployment.

Enables AI agents to semantically search GitHub repository documentation by automatically fetching, vectorizing, and indexing content into an Upstash Vector database. It provides a standard MCP interface for agents to retrieve relevant documentation snippets through natural language queries.

Combines Neo4j graph database with vector search using OpenAI embeddings for intelligent semantic search across knowledge graphs.

Provides AI agents with tools to navigate, search, and manage a hierarchical knowledge base of themes, skills, and learning resources with tenant-aware JWT authentication.

A read-only MCP server that lets any MCP-compatible AI agent inspect wallets and contracts on Base directly through natural conversation.

MCP server for AI agents to create and manage P2P escrow deals on Base (ETH or ERC-20).

Enables deploying ERC-20 tokens on Base mainnet via the SimpleTokenFactory contract. Supports token deployment, querying deployments, and factory info.

Enables agents to fetch live Base mainnet gas prices by paying $0.001 USDC per call via the x402 payment standard.

Enables MCP clients like Claude to query Chinese A-share market data, including K-line charts with forward/backward adjustment, limit-up and limit-down pools, per-stock fund flows, index quotes, and stock news, with automatic symbol normalization and retry handling for throttled data sources.

Provides A-share (Chinese stock market) quantitative analysis through tools for stock screening, northbound capital flow tracking, dragon-tiger list analysis, margin trading, sector analysis, technical indicators, IPO info, and limit-up/down statistics using akshare data.

Made-to-order data for AI agents via x402 micropayments on Base. Describe a need in plain language, get a custom quote, pay per call. No signup, no API keys. HTTP + MCP transports. 5 tools.

An MCP-native evidence retrieval platform that ingests source material, builds lexical and vector indexes, performs hybrid retrieval, and returns structured evidence packages for AI assistants.

Enables a model to call the Microsoft Graph API directly through nine verb-shaped tools with per-user on-behalf-of authentication, so users can read, create, update, delete, search, batch, upload, download, and resolve attachments without server-side business logic or allow-lists.

An MCP server that enables semantic search over a private knowledge base via pgvector, with GitHub OAuth authentication and a RAG pipeline.

An MCP server that provides onchain tools for Claude AI to interact with the Base blockchain and Coinbase API, enabling wallet operations, testnet ETH, balance checks, fund transfers, and smart contract deployment.

Enables AI applications to interact with the Base blockchain network, allowing wallet management, smart contract deployment, token transfers, NFT operations, DeFi interactions with Morpho vaults, and onramping funds via Coinbase.

MCP server to fetch DeFi yield opportunities on Base chain, including Aerodrome LP and Moonwell lending, with pay-per-call via x402 micropayments.