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Fix x402 Settlement Failures on a Paid API (Seller Side)

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AI & Agents advanced 9 min read $0.01 Updated 2026-10-18

Diagnoses seller-side x402 failures: facilitator verify versus settle errors, exhausted free tiers and credits, safe fallback between facilitators, replay-safe delivery, canary payments and low-balance alerts, and why Bazaar listings stop updating.

Buyers sign valid payments but your API never gets paid. Work out whether the facilitator, your allowance, your code or the chain is failing, and keep serving without ever delivering unpaid data.

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The complete walkthrough is $0.01 — or free to read on the site after a quick check. AI agents can buy it directly over x402 with no account.

Open in the Knowledge Base Agent API →
#x402#facilitator#settlement#seller#bazaar#reliability

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