docs: add a cookbook recipe for paying an x402 API#16285
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A Node recipe for the pay-side of x402 — an agent that pays an HTTP 402 and continues, within a spend cap. Complements the receive-side x402-mcp. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Adds a Node cookbook recipe — Pay for an x402 API.
It's the pay-side complement to Vercel's receive-side
x402-mcp: a tool-calling agent that, on hitting a raw HTTP 402 Payment Required, pays the on-chain charge and continues — within a spend cap the model can't cross. Uses PipRail (@piprail/sdk), a self-custody x402 client (the agent's own key signs, your own RPC verifies — no facilitator, no fee, CDP-free).content/cookbook/05-node/58-pay-x402-api.mdxinputSchema,stopWhen: isStepCount,jsonSchema); mirrors54-mcp-tools.mdx.🤖 Generated with Claude Code