"Using memory in programming with the Cursor system" matching MCP connectors:

The Brain Layer for AI Trading Agents — quant calls + cross-venue arb across perp venues via MCP.

AgentFeed: 47 tools — our own liquidation tape + tokenized-equity peg data, paid in USDC.

Identity infrastructure for the AI economy. Confirms if someone is known; returns inferred traits.

Live multi-asset market data for AI agents with provenance, starter credits, x402, and examples.

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

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

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.

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.

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.

A general store for AI agents. Pay in USDC via x402; every purchase gets a signed certificate.

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

Verify a Brazilian PIX payment settled — no API key. Crypto↔PIX with Central Bank receipts.

Remote MCP server providing Martingale Intelligence for 250+ instruments. Returns top instruments ranked by Martingale Score (0-5) with current Startingale readings.

Hourly crypto news sentiment and typed market events, with sources on every signal.

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.

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

All-in outcome rankings with live depth, fees, verified rules, EV checks, and track records.