tang-vu/keryx

Fork-and-run citation-toll reading agent on Arc — pays creators in USDC every time their work is cited. Autonomously buys paid sources over x402, settles weighted nanopayments to each cited creator. Reusable Arc primitives (two-toll x402, on-chain attribution registry, non-custodial spend cap) + a one-command ~90s demo.

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keryx

tang-vu/keryx

MCP server Claude CodeCodexCursor +2

Autonomous research agent that pays every source it cites in USDC on Arc via x402 micropayments. Runs locally from the keryx-mcp npm package.

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