{"uid":"cap_5CXS5GZRPI92SwF_dOXkk","slug":"eu-e-invoice-sandbox-send-flow-cf07d156","name":"EU E-Invoice Sandbox Send Flow","description":"SANDBOX e-invoice send flow: VIES buyer check + sanctions + EN 16931 UBL create/validate + Peppol/mandate route + sandbox transport (mock, Recommand playground or e-invoice.be test mode; loopback recipient, nothing reaches a real buyer) + Ed25519-signed evidence receipt","url":"https://api.wsystem.dev/einvoice/send?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"mode":{"enum":["sandbox"],"type":"string"},"invoice":{"type":"object"},"transport":{"enum":["mock","recommand","e-invoice-be"],"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.08","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":"$0.08/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.08","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.08","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3KS-lOVjp5J7rHzE1z_Al","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.08","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Runs a full EU e-invoice send pipeline in sandbox mode: VIES buyer check, sanctions screening, EN 16931 UBL creation/validation, Peppol routing, and sandbox transport with a signed evidence receipt — no real buyer is reached.","exampleAgentPrompt":"Run my invoice through the full EU e-invoice sandbox pipeline using mock transport — I want to check VIES and sanctions on the buyer, validate the UBL structure against EN 16931, simulate the Peppol routing, and get back a signed evidence receipt without sending anything to a real buyer.","exampleUseCases":[{"title":"Pre-launch e-invoice pipeline smoke test","prompt":"Before we go live, run this invoice object through the full sandbox send flow using mock transport — I need to confirm VIES check, sanctions screening, UBL validation, and Peppol routing all pass and get back a signed receipt."},{"title":"Integration test with Recommand playground","prompt":"Test my invoice send integration using the Recommand playground transport in sandbox mode — make sure the EN 16931 structure is valid and the buyer passes VIES and sanctions checks, and give me the evidence receipt."},{"title":"e-invoice.be test mode validation","prompt":"Can you simulate sending this invoice through the e-invoice.be test environment in sandbox mode? I want to see if the UBL structure and Peppol mandate routing are correct before we switch to production."}],"resultDescription":"Returns an Ed25519-signed evidence receipt confirming the sandbox send attempt, along with the results of each pipeline stage: VIES VAT check on the buyer, sanctions screening outcome, EN 16931 UBL validation status, Peppol/mandate route decision, and the chosen sandbox transport log. No message reaches a real buyer.","failureModes":["Invoice object fails EN 16931 UBL validation — returns structured validation errors with field-level detail","Buyer VAT number fails VIES check — returns invalid/unknown status","Buyer name matches sanctions list — returns match details and blocks the send simulation","Invalid or missing transport enum value — returns 400 with allowed values (mock, recommand, e-invoice-be)","Mode field not set to 'sandbox' — returns error since only sandbox mode is exposed on this endpoint","Malformed invoice object — returns schema validation error"],"whenToPreferThis":"Use this endpoint when you need to test the complete EU e-invoice send pipeline end-to-end in a safe sandbox environment before going live. It is the right choice when you want all compliance checks (VIES, sanctions, EN 16931) plus Peppol routing simulation and a cryptographically signed receipt, all without any real delivery. Prefer it over the standalone invoice creation or eligibility endpoints when you need the full integrated flow in one call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T06:45:43.220Z","isFirstParty":false,"canonicalSlug":"eu-e-invoice-sandbox-send-flow-cf07d156"}