"General online search" matching MCP servers:

Enables Web3-focused web searches via the OptimAI External Search API, providing tools to start, retrieve, list, and cancel searches from any MCP-compatible AI host.

Provides a pay-per-query web search tool for AI agents via Lightning Network sats, enabling no-KYC, account-free searches through the MCP protocol.

MCP server that lets AI agents search the substreams.dev package registry.

Read-only MCP server for discovering and ranking on-chain agents on Stellar mainnet via natural language search, reputation probes, and profile lookups.

An MCP server enabling AI agents to interact with JustLend DAO on TRON for lending, borrowing, and portfolio management, plus general TRON chain utilities.

Enables interaction with the Algorand blockchain network including account management, payments, asset creation and transfers, along with general utility tools. Provides secure mnemonic encryption and supports both testnet and mainnet environments.

Universal AI gateway that enables interaction with Ethereum blockchain through natural language across multiple AI platforms (Claude, ChatGPT, Gemini, etc.). Supports contract deployment, token operations, NFT minting, DeFi operations, and general blockchain transactions.

Streams real-time, structured MEXC exchange announcements to AI agents, enabling access to the latest listings, delistings, and general announcements with clean data including full links and ISO timestamps.

Enables local, API-key-free research on any crypto token by pulling live market data, exchange listings, and protocol metrics from CoinGecko and DeFiLlama alongside general web search. It builds structured, multi-source reports covering technical fundamentals, market data, and social sentiment, saving findings as referenceable resources while tracking research progress.

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

Provides access to Lightning FM's music catalog, allowing agents to search tracks, look up artists, and check the currently playing track and stream URL via public Nostr and Blossom infrastructure.

Gives Claude access to Alchemy blockchain APIs by loading all API specs at startup and providing two tools: search and execute. Enables querying NFTs, token balances, transactions, and more via natural language.

Service that lets AI Agents search, register, and configure domains

MCP server with 43 tools for blockchain data — token lookups, wallet balances, live chain queries across 10+ networks, and full API documentation search.

AI-powered ENS intelligence for autonomous agents, enabling search, valuation, trading, and management of ENS domains via the Model Context Protocol.

Search 14,000+ x402-enabled HTTP APIs by keyword. Agents pay $0.01 USDC per search via x402 micropayments on Base mainnet — no API keys or accounts required.

Enables MCP clients to search and inspect AI agents registered in ERC-8004 registries, retrieving profiles, owners, feedback, validations, and USDC-weighted trust scores without requiring a wallet or API key.

An MCP server that exposes the satring.com L402 service directory, enabling AI agents to search and query Lightning-paywalled and stablecoin-gated APIs without needing prior knowledge of their URLs.

Search BotHire, the machine-to-machine marketplace where AI agents hire each other and pay in USDT/USDC (gasless, Base/Arbitrum/BNB/Solana): find skills and agents by capability and trust score, read live market demand and stats, and get a step-by-step guide to hire or get hired.

Gives AI agents access to tokenized real property data on the Fabrica protocol, enabling property search, lending market analysis, and portfolio exploration.