"Servers that Enhance Productivity" matching MCP servers:

Pay-per-call x402 APIs for AI agents: DeFi token safety (honeypot/tax simulation, A-F grade), EVM chain data, web access (markdown/screenshot/PDF), speech-to-text. USDC on Base, no account, no API key

All-in-one MCP toolkit with 29 tools across 5 modules: crypto prices, web utilities, social media, finance tracking, and productivity. MIT licensed.

A TypeScript library that lets you build MCP servers whose tools charge stablecoins per call and AI agents that pay for those tools automatically via the Machine Payments Protocol on Tempo.

An MCP server that enables cross-chain token transfers via the Stargate protocol.

MCP server that builds unsigned Paraswap token swap transactions for self-custody wallets, holding no keys and signing nothing. It returns raw transaction data for a human to review and approve before execution.

Enables AI agents to provision, manage, and renew cloud servers with USDC payments via x402, requiring no human signup.

A local MCP server that gives AI agents read-only access to real brokerage accounts across 16 brokers and exchanges, while keeping API keys on the user's machine. It enables portfolio overviews, positions, trade history, and performance statistics through natural-language queries.

MCP server that lets AI agents discover and pay for .agent services using USDC over x402, with daily budget controls and payment link creation.

Pre-trade safety for EVM, Solana and TRON: simulates a real buy and a real sell against live liquidity, so a honeypot shows as a sell that fails instead of a vendor score, and audits a wallet's standing approvals across the three chains. Python standard library only, no API key.

Prediction-market MCP server for Kalshi and Polymarket: market search, live order books and quotes, each venue's fee schedule, fee-aware no-arbitrage checks across related event contracts, and paper orders that walk the book.

An MCP server that enables Claude and Gemini CLI to interact with Hummingbot for automated cryptocurrency trading across multiple exchanges.

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

Snap Router turns an agent's plain-language task into a ranked shortlist of the x402 services and MCP tools that actually serve it, in one ~200ms pass over the merged x402 Bazaar + MCP Registry catalog (16k+ entries) — no LLM call, with a "works well with" hint. The same server also ships Pricing-Truth: request-time on-chain liquidity and price integrity for Base/Ethereum/Arbitrum tokens -truth

Live liquidity-pool scores for Solana + EVM: Enter/Hold/Exit verdicts and a composite 0-100 Wealthville Score, backed by a public, immutable track record that includes misses. Read-only, free, no key required. Data product, not financial advice.

A local, read-only MCP server that lets AI assistants securely access your Ripio account to retrieve balances, activity, prices, limits, and open orders using your own API key.

MCP server for Stellar that enables AI assistants to explain account holdings, diagnose transaction failures, and describe Soroban contracts in plain language, with optional payment proposal flow.

A read-only MCP server that exposes BaseZap's tipping-agent tools to any MCP client, allowing users to fetch platform info, compute USDC tip quotes, build unsigned ERC-20 transfer calldata, and resolve Farcaster usernames to wallet addresses.

An MCP server that exposes live cryptocurrency market data from CoinGecko as 12 typed read-only tools, including prices, market charts, OHLC candles, trending coins, and global market overview.

MCP server that provides access to SiftingIO market data, including live prices, SEC filings, OHLCV bars, 13F holdings, market status, and economic calendar tools for AI assistants.

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