{"uid":"cap_Rpz3FboDWyHCgq28Aa1Ev","slug":"opusintelligence-x402-service-shortlist-48719b83","name":"OpusIntelligence x402 Service Shortlist","description":"Ranked shortlist of x402 services for a stated need. Scores every matching resource in the CDP Bazaar catalogue on repeat usage (calls per distinct payer), reach, recency, published-schema quality and price relative to services answering the same query. Returns three candidates with the raw figures, plain-language reasons, and category context. OpusIntelligence excludes its own services from all rankings.","url":"https://intel.opusai.work/v1/shortlist?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","required":["q"],"properties":{"q":{"type":"string","description":"What the caller needs, in plain words."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"query":"real-time twitter data","excluded":[{"reason":"operator_of_this_endpoint","resource":"https://intel.opusai.work/v1/triad"}],"shortlist":[{"why":["125x repeat usage vs 38x for the next candidate"],"score":0.7085,"watch":[],"signals":{"calls_30d":2125,"payers_30d":17,"calls_per_payer":125},"verdict":"strong","resource":"https://example.dev/tweet-search","price_usdc":0.005}],"set_context":{"notes":["Category has at least one well-used service (125x repeat)."],"best_repeat_ratio":125,"candidates_matched":60}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__8iw0MBfYJFa0DEMPkVoK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a ranked shortlist of three x402 services from the CDP Bazaar catalogue that best match a stated need, scored on repeat usage, reach, recency, schema quality, and relative price.","exampleAgentPrompt":"Can you find the best x402 service for real-time Twitter/X data — I want to see which one has the most repeat usage and why it ranks above the others?","exampleUseCases":[{"title":"Picking an API for agentic web scraping","prompt":"I need to pick an x402 service for web scraping — can you pull up the shortlist of top-ranked options from the Bazaar and show me their repeat-usage scores and prices?"},{"title":"Comparing SMS delivery services","prompt":"Which x402 APIs are best for sending SMS messages to users? Show me the top three from the CDP Bazaar with their usage stats and reasoning."},{"title":"Finding cheapest audio transcription service","prompt":"I want to transcribe audio files cheaply using an x402 service — can you get me a ranked shortlist of transcription options with their prices and how often other agents are actually using them?"}],"resultDescription":"A JSON object containing: a list of up to three ranked service candidates each with a URL, score (0–1), price in USDC, verdict (e.g. 'strong'), plain-language reasons ('why'), usage signals (calls in 30 days, distinct payers, calls-per-payer ratio), and any watch flags; plus category context such as total candidates matched and best repeat ratio; and a list of any excluded services (e.g. operator's own endpoints).","failureModes":["No matching services found for the query — returns empty shortlist with candidates_matched=0","Vague or ambiguous query produces low-relevance candidates","CDP Bazaar catalogue may not include very new or unlisted x402 services","Query too broad returns high-variance results across unrelated service types","Payment failure (insufficient USDC balance) blocks the call entirely"],"whenToPreferThis":"Use this endpoint when an AI agent needs to programmatically discover and compare x402 services for a specific task rather than manually browsing the Bazaar. It is especially valuable when selection criteria include real-world usage signals (repeat payers, call volume) rather than just keyword matching or price alone. Prefer it over manual catalogue browsing or static lists when freshness and empirical adoption matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-03T06:25:33.126Z","isFirstParty":false,"canonicalSlug":"opusintelligence-x402-service-shortlist-48719b83"}