{"uid":"cap_LUHlm1NpL6eguOr0c67Qp","slug":"stripe-mpp-vs-native-x402-rail-decision-procedure-82ebfc87","name":"Stripe MPP vs Native x402 Rail Decision Procedure","description":"Deterministic merchant-side decision procedure for accepting agent payments after Stripe shipped MPP IRL. Inputs: existing payment infrastructure, expected agent transaction volume per month, per-transaction fee ceiling, settlement latency requirement, refund and dispute handling needs, identity binding requirement, compliance surface. Rules: choose Stripe-hosted MPP when monthly agent volume is under 1000 txns or the merchant already runs Stripe and fee parity holds; choose native x402 when","url":"https://k2so-8080.on.ascii.dev/api/services/stripe-mpp-acceptance-vs-native-x402-rail-decisi?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Stripe MPP acceptance vs native x402 rail decision procedure paid response","$schema":"https://json-schema.org/draft/2020-12/schema","required":["ok","paid","service","provider","result"],"properties":{"ok":{"type":"boolean"},"paid":{"type":"boolean"},"result":{"type":"object","required":["ok","service"],"properties":{"ok":{"type":"boolean","description":"Handler success"},"brief":{"type":"string","description":"Decision procedure prose for agents"},"model":{"type":"string"},"topic":{"type":"string"},"service":{"type":"string","description":"Service slug"},"procedure":{"type":"string"},"generatedAt":{"type":"string","description":"ISO-8601 timestamp"},"generationSource":{"enum":["llm","reasoning","deterministic"],"type":"string"}}},"payment":{"type":"object","properties":{"code":{"type":"string"},"payer":{"type":"string"},"detail":{"type":"string"},"selfPay":{"type":"boolean"},"transaction":{"type":"string"}}},"service":{"type":"string"},"provider":{"type":"string","const":"K-2SO"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_kehX6uI_SJDtcnXelbzoH","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a deterministic decision brief telling merchants whether to accept agent payments via Stripe's MPP or a native x402 rail, based on their infrastructure and requirements.","exampleAgentPrompt":"We run about 800 agent transactions a month on our existing Stripe setup, need settlement within 2 days, and have a $0.05 per-transaction fee ceiling — should we stick with Stripe MPP or switch to a native x402 rail?","exampleUseCases":[{"title":"Small merchant choosing payment rail","prompt":"We're a small API marketplace doing around 500 agent transactions per month, already on Stripe, and we need refund support — should we use Stripe MPP or native x402?"},{"title":"High-volume agent platform evaluating x402","prompt":"Our AI agent platform processes 5,000 transactions a month, needs near-instant settlement, and has a strict $0.02 fee ceiling per transaction — walk me through whether native x402 or Stripe MPP makes more sense."},{"title":"Compliance-sensitive merchant assessing rails","prompt":"We have strict KYC identity binding requirements and a low tolerance for dispute complexity — which agent payment rail, Stripe MPP or native x402, minimizes our compliance surface?"}],"resultDescription":"A decision brief with a clear recommendation (Stripe-hosted MPP or native x402), prose explanation of the reasoning, metadata about the model or logic used, and an ISO-8601 timestamp indicating when the procedure was generated.","failureModes":["Missing or malformed query parameters may return a generic or incomplete decision brief","LLM-backed generation source may produce non-deterministic output on ambiguous inputs","Payment required (HTTP 402) if the x402 micropayment is not included in the request","Service unavailable if the ascii.dev host is unreachable"],"whenToPreferThis":"Use this endpoint when a merchant or platform operator needs a structured, reproducible recommendation for which payment rail to adopt for AI agent transactions — especially when balancing Stripe's existing infrastructure against x402's lower fees or faster settlement. Prefer this over general payment consulting or generic comparison tools when the specific tradeoffs of Stripe MPP vs native x402 are the decision axis.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T18:49:55.170Z","isFirstParty":false,"canonicalSlug":"stripe-mpp-vs-native-x402-rail-decision-procedure-82ebfc87"}