{"uid":"cap_n9yPkDESbozR-NSJVASNT","slug":"lumen-b2b-sourcing-5-pay-per-request-research-47ae4611","name":"LUMEN B2B Sourcing-5 Pay-per-Request Research","description":"Real B2B sourcing and procurement research. Seven paid endpoints on Base mainnet. Payment settlement requires individual human approval by LUMEN. No autonomous purchases.","url":"https://lumen-zero-x402.lumen-b2b.workers.dev/buy/sourcing-5?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"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"requirement":{"type":"string","maxLength":1200,"minLength":12,"description":"Nonconfidential sourcing brief; 12-1200 characters; queued only after a verified settlement."}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["ok","productId","amountUsd"],"properties":{"ok":{"type":"boolean"},"status":{"type":"string"},"amountUsd":{"type":"number"},"productId":{"type":"string"},"receiptId":{"type":"string"},"nextAction":{"type":"string"},"paymentAuthorizationVerified":{"type":"boolean"}}}}}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"15","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":"$15/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"15","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"15","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_AO8ddxsmBPE6jEqVqyIr-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"15","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Submits a B2B sourcing or procurement research brief for human-reviewed supplier/vendor research, paid per-call via USDC on Base mainnet.","exampleAgentPrompt":"I need B2B sourcing research on industrial-grade lithium iron phosphate battery cells — we're looking for verified manufacturers who can supply at least 10,000 units per month with UL certification. Can you submit this brief through LUMEN's sourcing service?","exampleUseCases":[{"title":"Specialty chemical supplier search","prompt":"I need help sourcing pharmaceutical-grade ethanol in bulk — specifically looking for FDA-registered US suppliers who can provide certificates of analysis and handle at least 5,000 liters per month. Please submit this as a sourcing brief."},{"title":"Custom electronics component procurement","prompt":"We need to find qualified contract manufacturers for a custom PCBA with medical device IPC Class 3 requirements, small-batch runs of 500 units. Can you run a sourcing search through LUMEN to find vetted vendors?"},{"title":"Industrial packaging vendor research","prompt":"Looking for B2B suppliers of sustainable corrugated packaging who can handle large retail orders and are certified FSC or SFI — need at least three verified options. Submit this sourcing requirement for me."}],"resultDescription":"Returns a JSON object confirming whether the sourcing brief was accepted (ok: boolean), a product/request ID, a receipt ID for the USDC payment, the amount charged in USD, payment authorization status, and a next-action field describing what happens after the human review step at LUMEN.","failureModes":["Payment not settled on Base mainnet — request is queued but not processed until verified settlement","Sourcing brief too short (under 12 characters) or too long (over 1200 characters) — schema validation error","Brief contains confidential or sensitive information not suitable for third-party review — may be rejected","Human approval step at LUMEN not completed — results delayed indefinitely","Network or worker error on Cloudflare — generic 5xx response","Insufficient USDC balance for $15 payment — transaction fails before queuing"],"whenToPreferThis":"Choose this endpoint when you need structured, human-reviewed B2B supplier or procurement research and are willing to pay $15 USDC per query on Base mainnet. It is appropriate for non-time-sensitive sourcing briefs where expert human curation adds value over automated results. Not suitable for real-time or fully autonomous procurement workflows, as each result requires individual human approval by LUMEN staff.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:39:03.113Z","isFirstParty":false,"canonicalSlug":"lumen-b2b-sourcing-5-pay-per-request-research-47ae4611"}