"Cash App" matching MCP connectors:

Deterministic AI agent microtools, no accounts/API keys. fetch_extract: 98% token cut. 38 tools.

Cross-venue Polymarket+Kalshi arbitrage: resolution mismatch, void risk & settlement divergence.

Checks whether an ERC-8004-registered agent is actually alive right now via a real MCP handshake

Solana token risk-scoring MCP server for AI trading agents with insider wallet cluster detection.

DeFi Protocol Activity Index -- quantitative on-chain activity metric from DefiLlama data

Policy check on a described yield position. Complement to yieldhunter. Research only.

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.

x402 pay-per-call data tools for Base agents. Flagship get_intent ABSTAINS instead of guessing.

70 x402-paid Base APIs with MCP tools, free discovery, samples, workflows, and Pixel Acre inventory.

Reputation oracle for AI agents on Base: SAFE/CAUTION/BLOCK + 0-100 score before you pay. x402+MCP

Crypto positioning and macro intelligence for agents — the signal set a trading desk watches, delivered as structured JSON. Multi-venue perpetual funding and open interest across Binance, Bybit and OKX (largest-open-interest perp per venue, thin venues excluded), Ethereum exchange whale flows, Bitcoin network health, DeFi TVL and stablecoin supply, Fear & Greed, and BTC/ETH/USDT dominance as a risk-on/risk-off regime filter. Plus the macro backdrop that actually drives crypto: Fed funds rate, 2Y

Solana MCP for wallets, trades, markets, PnL, transfers, onchain data, signable swaps and API tools.

Verify Seal AI decision receipts: signed evidence anyone can check, no account needed.

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

Discover privacy-first, bounded Venice-powered micro-work calls with exact x402 USDC prices.

Token swaps and honeypot/rug checks for AI agents on 8 chains, paid per-call in USDC via x402.

Monero/Zcash payment webhooks + DeFi liquidation & Ethereum builder data over MCP. Free tier; x402.

MCP tools for TON Sites, TON DNS and TON Storage.

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).

Pre-transaction health and safety verdicts for onchain apps, by contract address.