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MCPay

MCPay

Payments

Open-source x402 payments for MCP servers and APIs — pay-per-tool-call micropayments for AI agents (Solana/Base USDC).

Website @mcpaytech microchipgnu/MCPay

x402mcpagentspaymentssolana

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LST liquidity infrastructure on Solana

x402 payment gateway for agents and builders — pay-per-call API access instead of API keys, covered in our x402 + pay.sh article.

Security

Accretion

Solana security research and education. Maintainers of awesome-solana-security and field notes on program design, audits, and ops.