"PostgreSQL MCP (Multi-Version Concurrency Control or specific usage)" matching MCP servers:

A production-ready MCP server providing comprehensive DevOps capabilities for the Internet Computer blockchain, enabling AI agents to authenticate, manage canisters, handle finances, and build/deploy projects.

AI-driven command center for local crypto operations, integrating over a dozen MCPs for real-time market data, technical analysis, on-chain data, and autonomous trading agent execution.

Compare real-time gas prices across up to 9 EVM chains and get the cheapest-chain recommendation. Pay-per-call via x402 (USDC on Base). No API key.

Enables voice or tool-call remote chart display on paired machines, metering usage over Bitcoin Lightning and relaying a fixed, order-safe vocabulary.

MCP server for multi-party USDC settlement with validator consensus, enabling submission and tracking of settlements through a network of validators that vote to approve or reject transactions.

Multi-party escrow and settlement for autonomous agent transactions with x402 micropayments and dispute resolution on Base, Ethereum, or Solana.

Keyless crypto payments for AI agents. One MCP call turns any wallet address into a non-custodial crypto payment link or tip jar, no API key and no account, with funds settling straight to your wallet at a 0% platform fee (USDC/USDT, BTC, LTC, DASH, DOGE, ZCASH).

Free MCP server for real-time cryptocurrency data. Get token prices, market overview, top movers, historical charts, and detailed token info directly in Claude Code, Cursor, or any MCP-compatible AI tool. Powered by CoinGecko with 70+ token mappings and built-in caching.

Quick-scan a smart contract for rug, honeypot, or centralization risk before sending funds. It combines verified source, live on-chain state, and heuristic Solidity analysis to return a SAFE/CAUTION/HIGH-RISK verdict.

Enables an AI assistant to read token bonding curves, quote trades with fee breakdowns, monitor graduation progress, and optionally launch, buy, sell, or rescue tokens on Arc via arcnow.io.

MCP server that scores the behavioral risk of a wallet on Base before sending it money. Provides a risk score, verdict, and explainable flags based on USDC payment history.

Hashlock Markets — sealed-bid intent-based crypto trading via MCP for AI agents. Atomic cross-chain settlement (Ethereum, Bitcoin, Sui) using HTLC. Six MCP tools for RFQ price discovery without information leakage and HTLC settlement without escrow or bridges. Canonical npm: @hashlock-tech/mcp.

Pay-per-call data and tools for AI agents over x402, by UnyKorn. 360 endpoints: DeFi and market data, multi-chain wallet reads, wallet and token risk signals, SEC filings, web and domain intel, and AI text tools. Settled per call in USDC on Base ($0.001-$0.25). No API keys or subscriptions; unpaid calls return the exact quote first.

MCP server for local transaction signing across EVM, UTXO, Tron, and XRP blockchains, with no network calls or API keys required.

Enables users to control their Toleno mining account directly from Claude AI using natural language, allowing actions such as checking balance, starting mining, viewing referrals, and more.

Enables AI agents to call paid APIs and settle HTTP 402 payment challenges with USDC on Base, without private keys ever being involved.

Enables agents to request AtlasYield judgments: get 16-factor vault scores, check whether deposits can be exited at size, list blowup alerts, and compare vaults—all read-only with no key or custody.

Enables cross-chain swap execution across 12 venues and 17 chains, including native Bitcoin as source or destination, with tools for quoting, execution, status, and health checks. No signup, API key, or protocol fee required.

Buy and manage a global eSIM through chat. One universal eSIM for 192 countries, per-MB billing in USDT or USDC across TRON, Solana, BSC, Polygon, Optimism, Arbitrum, TON. Anonymous-flow by default — no account required.

Enables cross-chain swap queries and unsigned transaction building for Mayan Finance, supporting Solana and seven EVM chains via MCP tools, without holding private keys or signing transactions.