"Connecting to PostgreSQL database, retrieving table schema, and executing SQL queries" matching MCP servers:

This MCP wraps Bitrefill public API to allow agents to search for products and shop using cryptocurrencies like Bitcoin, Ethereum, Solana, and many more.

Generates MCP servers from smart contract ABIs, enabling Claude to interact with any Ethereum contract via natural language commands.

Wallet-funded MCP client for six paid Utilia tools: Solana priority fees, transaction diagnosis and simulation, token-risk checks, PDF-to-Markdown, and audio normalization over x402. MIT-licensed and installable from npm.

MCP server for Chainlink Runtime Environment, enabling build, simulate, deploy, and manage CRE workflows from any MCP client.

A read-only MCP server connecting AI agents to MTRKR wallet intelligence on MegaETH, enabling wallet portfolio, DeFi positions, security scanning, and transaction analytics.

A zero-config data server for read-only queries on Robinhood Chain (stock tokens, memecoins, launches, chain stats) and an opt-in trading server with spend caps and confirm gates for executing swaps and transfers.

A Model Context Protocol (MCP) server connecting AI agents to the Polygon blockchain for product origin verification and supply chain timeline auditing

Enables AI agents to query entities from Arkiv database chains using a SQL-like filter expression, with pagination and configurable fields.

Dune MCP Server connects your AI assistant to Dune Analytics, the leading platform for blockchain data. Execute SQL queries across Ethereum, Solana, and 20+ chains to analyze DEX trades, token transfers, NFT sales, and wallet activity. Manage saved queries, upload custom datasets, and access curate

Enables interaction with the Hyperliquid DEX for retrieving market data, managing positions, and executing trades. Supports both testnet and mainnet operations with comprehensive trading tools including order placement, cancellation, and portfolio management.

MCP server connecting AI assistants to Havona trade finance API for managing trade contracts, checking blockchain status, and extracting document fields.

Provides Claude with access to blockchain data and market prices via the OKX API, enabling operations like retrieving asset prices, transaction history, and executing swaps.

Connects MCP-compatible AI assistants to the Wikicious V6 protocol on Arbitrum One, enabling queries on perp markets, positions, staking, and revenue, as well as executing trades, deposits, withdrawals, and staking actions via natural language.

An MCP server for retrieving block numbers by timestamp, enabling fast and precise on-chain data queries.

Enables agents to query Base blockchain data using natural language by providing contract addresses, SQL templates, and direct access to Coinbase's SQL API for realtime on-chain analytics including DeFi, NFTs, and wallet activity.

Bridges Ethereum JSON-RPC queries from Geth nodes to the Model Context Protocol ecosystem, exposing blockchain operations as MCP tools. Enables AI models and applications to securely interact with Ethereum data including blocks, transactions, balances, and advanced debug functions through schema-validated access.

Enables LLM agents to interact with the Mammoth Protocol on Solana for discovering cycles, getting quotes, and executing buys via bounded-curve mechanics.

A Model Context Protocol server that provides onchain tools for Claude AI, allowing it to interact with the Solana blockchain through a standardized interface for operations like managing assets, executing token operations, and retrieving network information.

A Model Context Protocol server that enables AI assistants to access Flow blockchain data and perform operations such as checking balances, resolving domains, executing scripts, and submitting transactions.

Checks live x402 routes across Base, Solana, and Algorand before agents spend. $0.003 USDC settles only for a valid live eligible route; normal typed misses are not settled. Free preview and validate tools. Seller payment is separate; the agent keeps its wallet. Optional signed route-binding receipts support buyer-side checks.