nirholas

Robinhood Crypto Trading API for AI agents: quotes, holdings, orders read-only; opt-in trading.

Pay any x402 endpoint on the open web: auto-paying bridge with Bazaar discovery and spend caps.

Robinhood Chain data + guarded trading for AI agents: Stock Token quotes, portfolios, launches

Discover and price paid agent services across the live x402 network, by three.ws.

Pay-per-use IBM Granite AI via x402: chat, code, embeddings, forecasting. USDC on Base or Solana.

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

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

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

Explore the Claude Code CLI source — browse tools, commands, search code, and more.

Generate Ethereum wallets with BIP39 mnemonics, HD paths, vanity addresses, private key backup

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

UCAI — The ABI-to-MCP Server Generator. Convert any smart contract ABI into an AI-ready MCP server.

MCP server for PumpFun on-chain intelligence — tokens, claims, holders, and bundles.