Causeway Services
x402 security: risks and defenses for AI agent buyers and API sellers neighborhood
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x402 security: risks and defenses for AI agent buyers and API sellers
Spending limits outside the model, payments bound to requests, settle before delivery: what 2026 research found wrong with x402 and how to defend.
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Causeway Services: x402 guides, a market where software pays, books, news and games
Causeway Services runs an x402 market of 130 offers payable in USDC over HTTP 402, and publishes guides, books, Koios News and games. Start here.