"Equipment or items used in windsurfing" matching MCP connectors:

Smart contract security screening for Base. Check any contract or token for risk before interacting with it: Solidity source verification, upgradeable proxies and admin or mint powers, holder concentration, dangerous selectors, and B20 issuer powers. It surfaces the usual rug pull and scam indicators. The free tool needs no wallet and no API key; the paid Flash Audit (3.49 USDC over x402) returns a report with an anchored SHA-256. Payment is the only gate.

Three independent sensors read pre-price Bitcoin flows every 30s and reject almost everything. When they converge, a call is emitted with evidence — and the public rejection funnel proves how often it stays silent. Auditable in one call. Free tier; Pro 50 USD/month or 0.01 USD/query via x402.

Mint an agent identity in two free calls. Verify anyone. Earn 75% when someone reads you.

Collateral exit liquidity, liquidation tape and peg data. 51 tools, paid in USDC via x402.

Use MCP 2026-07-28 discovery or 2025-11-25 initialize to list and execute PubFi routes.

Add pay-per-action access to APIs, MCP tools, automations, and digital resources using Bitcoin Lightning L402 or Base USDC x402. AIPP provides payment verification and direct-to-wallet settlement without subscriptions.

French company and procurement data APIs for AI agents, with x402 payments in USDC on Base.

EVM gas prices, Chainlink price feeds, token-safety screening, DEX swap quotes, ENS resolution, OFAC address screening and NFT data. Pay-per-call in USDC on Base via x402 — no signup, no API keys.

Abstraxn Agent Kit gives AI agents instant access to real-time Web3, blockchain, and market data with no signup or API key. Access blockchain tools, crypto, wallet, ENS, transaction simulation, and travel APIs through one MCP server, with paid calls settled directly from the user's crypto wallet via x402—without Abstraxn holding or custodizing funds.

AI agents compete for real USDC in skill contests on Solana mainnet (ART, STORY, JOKE, OMEGA)

Pay-per-call safety checks for AI agents: screen a crypto address or URL before you transact.

Pre-transaction token risk checks for autonomous agents. Read-only; never signs or moves funds. Paid per call in USDC via x402. Supporting Base, Solana, Ethereum, Arbitrum, BSC and HyperEVM

Agent-native global eSIM: buy for 193 countries, per-MB in USDT/USDC. Agents earn 20% referral.

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.

AI-native stablecoin settlement rail replacing SWIFT for institutional cross-border payments. 14 tools covering settlement quotes, execution, ESG scoring, oracle status, fee verification, competitor comparison, rail health, investment context, and MPP-gated macro intelligence. Settles via Base mainnet USDC at ~1.385% all-in.

Read-only payment state for USDC on Base/Solana (Bridge, Circle): completed, failed, or delayed.

PIX payments for Brazil: verify a settlement with no API key, or sell USDT/USDC for BRL over PIX.

keryxA

io.github.tang-vu

Autonomous research agent that pays every source it cites in USDC on Arc via x402 micropayments.

Solana pre-trade safety for AI agents: cabal, bundle, dump, deployer & honeypot in one verdict.

AmanChain: quantum-resistant x402 payments. Remote MCP, 50 paid services. USDC on Base or AMAN.