"Information about Neo4j graph database" matching MCP connectors:

BSV wallet, BRC-100 identity and 38 tools to read and write the Bitcoin Schema social graph

What the chain records about an address before you pay it, and whether a payment fits it.

GreenlandAI: world graph & map (companies, deposits, commodities), marketplace, wallets, proofs.

Evidence about ERC-8004 agents on BNB Smart Chain, gathered by calling them. No key.

The Graph MCP — indexed blockchain data via subgraph GraphQL queries

Token API by The GraphA

com.thegraph.mcp.token-api

Query real-time blockchain token data across EVM and Solana networks. Access token balances, transfers, prices, holders, NFT ownership, DEX swaps, and liquidity pools. Supports Ethereum, Base, Arbitrum, BSC, Polygon, Solana, and more.