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Product"},{"id":"renewal-retry-and-refill-live-above-the-first-charge","level":2,"text":"Renewal, Retry, and Refill Live Above the First Charge"},{"id":"billing-and-treasury-still-matter-above-both","level":2,"text":"Billing and Treasury Still Matter Above Both"},{"id":"comparison-table","level":2,"text":"Comparison Table"},{"id":"recommendations-for-buyers","level":2,"text":"Recommendations for Buyers"},{"id":"bottom-line","level":2,"text":"Bottom Line"}],"previewMarkdown":"# MPP vs x402 for Production Buyers, 2026\n\n## Scope\n\n- A buyer memo on where stateless paid HTTP ends and recurring machine payment operations begin\n- Focused on rollout order, renewal, retry, refill, and operator visibility instead of protocol branding\n- Published as a full artifact bundle with charts, evidence, sources, and methodology\n\n## What this report argues\n\n- One-shot paid requests and recurring autonomous runs should not be scored on the same rubric.\n- x402 is strongest when the payment boundary really is the request boundary.\n- MPP or another session rail becomes more useful when the product needs continuity, renewal, and delegated runtime authority.\n- Merchant billing, refill, and treasury controls still matter above either rail once recurring recovery becomes part of the product.\n\n## Why this slug exists\n\nThe earlier commerce-stack report explained where Tempo, MCP, and x402 fit together. This report turns that category framing into a concrete buyer decision: when should a team stay request-priced, when should it move into sessioned payment, and when does it actually need billing and treasury logic above both?\n","report":{"category":"Machine payments","datasetSummary":{"deepResearchRuns":1,"normalizedSources":68,"publicSources":6,"sampleRows":4,"searchQueries":3,"window":"late 2025 through Q1 2026 subscription and stablecoin payment docs"},"featureKey":"deep_reports_mpp_vs_x402_for_production_buyers_2026","findings":["The sharpest boundary is not protocol popularity but whether the product bills per request or maintains a continuing payment session.","x402 stays strongest when the merchant can charge request by request without owning renewal or refill state.","MPP and other session rails become more useful when the product needs continuity, recurring delegated execution, or operator-visible renewal.","Most production subscriptions still need billing and treasury logic above either rail for refill, retry, reconciliation, and customer recovery."],"methodology":["Anchored the report in official Tempo, x402, Stripe, and Circle documentation plus buyer-facing ecosystem comparisons as of March 24, 2026.","Used one deep research run plus three focused search sweeps to separate one-shot paid request flows from recurring machine payment and billing recovery flows.","Organized the analysis around four buyer decisions: request boundary, session boundary, renewal and refill ownership, and rollout order into production."],"previewBullets":["One-shot paid requests and recurring machine subscriptions should be evaluated separately.","x402 is strongest for stateless request commerce; 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