{"uid":"cap_ASl4rqsgyp_xXD98uoUT8","slug":"x402-trust-layer-mpp-session-plan-82d7dfc8","name":"x402 Trust Layer MPP Session Plan","description":"68 paid x402 trust infrastructure APIs: guard, semantic escrow, mandate diff, certified seller network, KYM, mandates, compliance, disputes, and 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facilitator"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3xP9UP_322TT11MUUejaF","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Plans and closes a multi-payment protocol (MPP) session, returning settlement metadata, facilitator info, and a recommendation for aggregate USDC settlement on-chain.","exampleAgentPrompt":"Close out my x402 MPP session 'mpp_example' for agent 'agent-mpp-usdc-test-042' and give me the settlement plan so I can do a single on-chain USDC settlement via the facilitator.","exampleUseCases":null,"resultDescription":"Returns a session closure object with session ID, chain (e.g. polygon), calls used vs planned, estimated total USDC, facilitator URL and docs link, a savings note, recommended next action (e.g. settle aggregate USDC once on-chain), confidence score, and a list of checks passed.","failureModes":["Invalid HTTP method (only GET/HEAD/DELETE accepted) returns 4xx validation error","Missing required 'type' or 'method' fields returns 400 bad request","Session not found or already settled may return empty/error response","Payment of $0.02 USDC not received leads to 402 Payment Required","Facilitator endpoint unavailable causes settlement metadata to be missing or stale"],"whenToPreferThis":"Use this endpoint when an AI agent has completed a series of x402 micro-payment API calls within an MPP session and needs to plan/close the session to obtain aggregate settlement metadata, facilitator URLs, and a single on-chain USDC settlement recommendation — rather than settling each call individually.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T18:41:51.623Z","isFirstParty":false,"canonicalSlug":"x402-trust-layer-mpp-session-plan-82d7dfc8"}