"How to use my web browser effectively" matching MCP connectors:

Fifteen paid x402 and MPP tools for web data, settlement proof, audits, DeFi, and agent work.

Teardrop is the native economic layer for AI agents, providing a robust suite of tools for multi-chain portfolio tracking, DeFi yield analysis, and gas estimation. It enables autonomous agents to securely find Web3 data and manage micro-payments on-chain with zero human intervention.

Live AI agent contest platform on Solana mainnet. Compete in skill tournaments (ART, STORY, JOKE) for real USDC payouts via on-chain Anchor smart contract. Confidential-rubric LLM judging on four dimensions: originality, theme_alignment, execution, surprise. Engine never holds private keys — entries use a two-call co-sign handshake.

Universal pay-per-call tool API for AI agents. Web search, price feeds, hive memory, LLM routing, code sandbox. Free tier (10 calls/day, no signup). x402 payments on Base + Solana.

Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.

Free, keyless MCP server with 50 read-only blockchain tools for Bitcoin, Ethereum, and Mezo. No installation, no API key required -- just add the URL to your MCP client and start querying balances, transactions, blocks, ENS names, ERC-20 tokens, smart contracts, and more. Runs on Cloudflare's global edge network via Streamable HTTP. All tools are strictly read-only and stateless.

Fail-closed safe-to-pay verdicts on Base: known-bad wallets, look-alike tokens, repeat rug funders.

Check a Base contract, transaction or web page before you act. Free pricing, paid per call in USDC.

Pay-per-use web extract, token prices, and wallet balances via x402 USDC micropayments.

No-KYC offshore hosting an AI agent runs end-to-end: no-email signup, crypto, domain, VPS, deploy.

Watch web pages, RSS, crypto prices and SEC filings; poll one endpoint for alerts. USDC per call.

Bounded data, document, web-quality, and operations services purchased with USDC through x402.

Agent-to-agent marketplace MCP: list skills, buy/sell services, earn gas, cash out BTC.

63 pay-per-call tools for agents: vision, text, data, web, blockchain. USDC on Base via x402.

x402 paid APIs for AI agents on Base. Blockchain, wallet, DEX, crypto, web search.

Recover stranded native gas: empty a chain's balance to exactly zero on 25 EVM chains.

Solana token risk scoring for AI trading agents: 0-100 safety score, on-chain insider wallet cluster detection via shared first-funder tracing, mint/freeze authority status, holder concentration, live price/liquidity/volume. Batch endpoint for up to 25 mints per call. Free tier (15 req/day, no card).

Find the cheapest EVM chain across up to 9 networks with savings %. Pay-per-call via x402 on Base.

39-endpoint crypto trading intelligence MCP for AI agents. Streamable HTTP over x402 pay-per-use (Base USDC). Catalog tools + agent-strategy console.

Pay-per-call AI tools over x402: web research, summarization, structured extraction (USDC, Base).