MCP server for 2s.io — 40+ pay-per-call tools settled in USDC on Base via x402.
stdioofficialservice
Package Details
@2sio/mcp
Transportstdio
Runtimenpx
Environment Variables
EVM_PRIVATE_KEY(str)
Secret
Hex-encoded EVM private key (0x-prefixed) used by the SDK to sign x402 EIP-3009 payment authorizations. Mutually exclusive with TWOSIO_API_KEY — provide one or the other. Funds USDC on Base.
TWOSIO_API_KEY(str)
Secret
Bearer API key for pre-funded 2s.io account auth. Mutually exclusive with EVM_PRIVATE_KEY — use this if you want account-based debits instead of per-call x402 settlement.