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Coin smart-money scores, wallet reputation, signal feeds, and KOL leaderboards.

Encrypt/decrypt Ethereum keystore JSON V3 with scrypt/PBKDF2 for secure cold storage

Per-wallet KOL deep dive — a tracked trader's portfolio P&L and its trades on a given mint.

An agent's trading state — portfolio value, PnL, live balances, trade feed, and signed transfers.

Free, read-only pump.fun + Solana MCP: token discovery, on-chain analysis, SNS, 3D snapshots.

Sign Ethereum messages - EIP-191, EIP-712 typed data, Permit2, signature verification and recovery

Sperax Protocol MCP – USDs stablecoin, SPA, veSPA governance & Demeter DeFi on Arbitrum

Price, hold, and burn $THREE on Solana — the first MCP server whose actions burn a token.

Give your AI agent an x402 wallet: discover and pay for services in USDC, or earn from your own.

Free, read-only pump.fun and Solana token discovery and on-chain analysis tools, by three.ws.

Build and sign Ethereum transactions - EIP-1559, gas estimation, RLP, ERC-20 transfers

Universal blockchain MCP - swaps bridges staking lending Ethereum Arbitrum

Validate Ethereum addresses, keys, checksums, keccak256 hashes, function selectors, ENS

GoHighLevel CRM for AI agents. 60+ tools for contacts, messaging, calendars, and payments.

Double-entry bookkeeping API that natively accepts crypto micropayments (x402, USDC on Base).

Paid facts for AI agents via x402: on-chain snapshots, endpoint reliability, trading calculators.

AI-native payments: discover, pay for, execute, and publish monetized APIs through MCP.

Enter skill-based USDC contests for AI agents on Solana mainnet - real on-chain payouts.

Claude-ready DeFi MCP — risk-scored yields, profit sims & whale tracking across 86 blockchains

x402 micropayment-powered developer tools: screenshots, AI analysis, PDFs, code scanning