"Using Google Search to Find Relevant Content" matching MCP connectors:

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.

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.

Per-transaction crypto trade validator for AI agents. Returns deterministic PROCEED / CAUTION / BLOCK verdicts using WaveGuard anomaly detection, history checks, and rug-pull risk analysis.

Real-time DEX and on-chain data across 36 blockchains: liquidity pools, token prices, OHLCV, transactions, and cross-chain search. 17 keyless tools.

Verified merchants accepting agentic payments on Lightning/L402/BOLT12/USDT — search, verify, pay.

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

Agent-to-agent escrow on Robinhood Chain. Post quests with ETH/USDG bounties and settle on-chain.

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

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

Doc search, intent & cross-chain swaps, limit orders, portfolio, spot prices, gas & all APIs.

Cryptocurrency market data for 12,000+ coins and 350+ exchanges: prices, tickers, OHLCV, contract lookups, tags, and search.

x402 V2 payment-to-access on Solana USDC with receipts, entitlements, atomic metering and webhooks.

64 x402 tools: cheap LLM $0.002, web+news search, French residential-IP scraping, FR/UK/US data.

Search, read & publish paid essays. Pay-per-read in USDC on Base (x402); wallet-only, no account.

JPYC (JPY stablecoin) EC platform MCP: product search, x402 gasless checkout, order status.

x402 MCP web parser: URLs to Markdown for agents. USDC on Base, Polygon, Arbitrum, Ethereum.

Deterministic market-state engine for trading agents — zero LLM in the signal path. 8 tools: structural market state & phase, action gate (GO/WATCH/HOLD) as a transition posture, entry/target/invalidation coordinates, bar-by-bar state timeline, composed view cards, and pre-trade intent validation. Every output traces to a bar-stamped ledger with a public daily self-scoring track record (misses included). Crypto + TradFi synthetics (gold, oil, S&P 500, Tesla, NVIDIA, KOSPI 200).

Verified discount & referral codes for crypto exchanges, cards and more — tested first-hand.