{"uid":"cap_BiojbtUh0DZiHuj3A5ESR","slug":"penny-engine-market-demand-intelligence-0f9f1d64","name":"Penny Engine — Market Demand Intelligence","description":"Machine-to-machine result validation via x402. One structured call, deterministic PASS or FAIL and SHA-256 fingerprint, $0.001 USDC on Base.","url":"https://penny-paid-batch-production.up.railway.app/api/market-demand?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"type":"M2M_TRANSACTION_INTELLIGENCE","candidates":[],"reportedWindow":"7d"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_nM12XN-CjnZdvs99NeJRE","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a 7-day M2M transaction intelligence report on market demand candidates, validated via x402 micropayment on Base.","exampleAgentPrompt":"Can you pull the latest 7-day market demand intelligence report from Penny Engine for AI agent services and show me the candidate list?","exampleUseCases":[{"title":"Assess agent API marketplace demand","prompt":"I'm thinking of listing my data-enrichment API on an x402 marketplace — can you check Penny Engine's market demand report to see if there's active buyer interest in that category over the past week?"},{"title":"Monitor M2M transaction trends","prompt":"Pull the latest Penny Engine market demand intelligence for the past 7 days and tell me which service candidates are showing the most M2M transaction activity."},{"title":"Validate new service category viability","prompt":"Before I build a new AI agent tool, can you use Penny Engine to check recent market demand signals and see if there are any matching candidates in the current 7-day window?"}],"resultDescription":"A JSON object with type 'M2M_TRANSACTION_INTELLIGENCE', an array of market demand candidates, and a reportedWindow field indicating the analysis period (e.g. '7d'). The candidates list reflects active demand signals in the x402 agent marketplace.","failureModes":["Payment not processed — x402 402 response if USDC payment on Base is not completed","Empty candidates array — no market demand signals found for the queried properties in the 7-day window","Malformed properties input — 400 error if the properties string is invalid","Service unavailable — Railway hosting downtime returning 5xx"],"whenToPreferThis":"Choose this endpoint when you need a quick, cost-effective ($0.001 USDC) snapshot of market demand in the x402 / AI agent micropayment ecosystem. It is best suited for agents or developers who want to assess whether a service category has active M2M buyers before investing in building or listing. Prefer it over generic market research tools when the focus is specifically on machine-to-machine transaction intelligence within the Base blockchain / x402 protocol space.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T18:36:38.605Z","isFirstParty":false,"canonicalSlug":"penny-engine-market-demand-intelligence-0f9f1d64"}