"An open-source relational database management system" matching MCP servers:

MCP server for token-user-system wallet operations, supporting balance, trend, transactions, coupons, and corporate transfer info.

Enables AI agents to inspect and measure live crypto charts, read indicator and market-structure data, add native indicators, and create editable annotations through a local MCP bridge.

Enables access to Pionex's public REST APIs for market data, spot accounts and orders, wallets, trading bots, and Earn products, with safeguards such as symbol and amount limits and destructive-operation annotations.

Enables querying Base Network blockchain data including blocks, transactions, balances, and smart contracts on mainnet and testnet.

MCP server for Pi Network that enables AI agents to query Pi chain data (balances, transactions) and verify user tokens, with optional payment sending that is off by default.

An MCP server that provides real-time web search to AI agents via a pay-per-search USDC microtransaction system.

An MCP server that records consented, attributed, paid-for receipts for open-source dependencies, settling per-call USDC payments on Algorand with on-chain attribution.

An open-source, zero-dependency Model Context Protocol (MCP) server and HTTP 402 payment gateway template built for Cloudflare Workers and Node.js. This repository provides an automated store API on Solana (USDC) alongside a native MCP Server interface. It enables AI agents (Claude Desktop, Cursor, etc.) to discover, pay for, and consume paid digital assets via standardized MCP Tools.

Open-source routing layer that splits compute jobs and inference prompts across resources using Gemini, with MongoDB-backed route books and priced allocations.

This server provides a robust interface for Binance spot trading operations, including secure management of API credentials, execution and management of spot orders, and monitoring of account balances and open orders.

An MCP server that classifies Polymarket wallets as human or bot, scores their trading edge from 0–10, and streams current open positions.

Enables AI agents to analyze Hyperliquid accounts by retrieving positions, PnL, fills, open orders, and funding through an x402 micropayment MCP server, with no API key or signup required.

An open-source, zero-dependency Model Context Protocol (MCP) server and HTTP 402 payment gateway built for Cloudflare Workers and Node.js. This project enables AI agents (Claude Desktop, Cursor, etc.) to natively discover, negotiate, and autonomously pay for digital resources over Solana USDC using standardized MCP tools and standard HTTP 402 Payment Required headers.

Enables searching and retrieving live Solana bounties from Superteam Earn, including full bounty details and currently open feeds, without requiring an API key.

Enables querying Polymarket prediction market data, including top active markets and order books, without an API key or database.

CheapestInference — unlimited flat-rate API for frontier open-source LLMs

An open-source financial data server that exposes MCP tools and HTTP endpoints for A-share, US equity, ETF, index, and crypto market data, technical indicators, fundamentals, money flow, news, and filings. It enables AI agents and backends to query multi-source market data, run analysis, and export CSV/JSON for code-execution workflows.

Provides cryptocurrency market data, account management, and trading on Binance USDT-M perpetual contracts via MCP, with a local audit system for transaction recording.

Hourly news sentiment and typed market events (hack, regulation, listing, delisting, legal) for 30 crypto pairs, with source links on every signal. Four tools cover the latest score per symbol, history, classified events and the symbol list, and a free API key works out of the box

Enables AI agents to read and bid on a paid message slot on Solana, with enforced spend limits, dry-run proposals, and an append-only audit log for every write.