{"uid":"cap_zhUJKyVuMl4Yc65F_CoWl","slug":"tenjin-answer-api-c0787a95","name":"Tenjin Answer API","description":"Pay once for a cited answer synthesized from independent publishers on Tenjin. POST a question; a question the catalog cannot answer returns a free MISS and is never charged.","url":"https://tenjin.blog/api/answer","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"maxPrice":{"type":"string","pattern":"^\\d{1,39}$","description":"Optional ceiling on the flat answer price, in atomic USDC units as a digit string (\"10000\" = $0.01). Below the quoted price the request is refused with `max_price_below_quote` rather than degraded; it never narrows which pieces the answer draws on."},"question":{"type":"string","maxLength":512,"minLength":1,"description":"The question to answer, 1 to 512 characters. Leading and trailing whitespace is trimmed before the length check, so an all-whitespace value is rejected."},"freshWithin":{"type":"string","description":"Optional recency window as an ISO 8601 duration, P<n> followed by D, W, M or Y (for example \"P30D\"). n must be nonzero."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gCbiDMuoFoLI61ek-PH8U","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Synthesizes a cited answer to a question from independent publishers; charges $0.05 USDC only on a hit, returns a free MISS if the question cannot be answered.","exampleAgentPrompt":"Ask Tenjin what happened to DeFiLlama's stablecoin chart on July 14 — I need a cited answer with sources from independent publishers.","exampleUseCases":[{"title":"DeFi market event research","prompt":"What did BitMEX announce about its exchange closure, and which tokenized fund launches happened around the same time? I need cited sources from independent publishers."},{"title":"x402 payment protocol guidance","prompt":"Ask Tenjin for a cited explanation of how x402 sellers on CDP Bazaar should handle settlement correctly — I want sourced publisher answers, not just guesses."},{"title":"Stablecoin market snapshot","prompt":"What's the latest on stablecoin float and BTC price movement near $64,000? Get me a cited synthesis from Tenjin with publisher references."}],"resultDescription":"A synthesized prose answer to the submitted question, accompanied by citations identifying the independent publishers whose content was used. If the catalog cannot answer the question, the API returns a free MISS response with no charge and no answer content.","failureModes":["MISS response when the question falls outside the catalog — returned free with no charge","Ambiguous or overly broad questions may yield partial answers or a MISS","Payment failure via x402 protocol if wallet has insufficient USDC","Network or service errors returning non-200 HTTP status","Question phrasing too vague to match catalog entries"],"whenToPreferThis":"Choose this endpoint when you need a cited, synthesized answer drawn from curated independent publishers rather than a raw web search or LLM hallucination. It is especially well-suited for questions about crypto markets, DeFi events, and emerging web3 topics covered by Tenjin's publisher catalog. The pay-on-hit model makes it cost-efficient: unanswerable questions cost nothing, so it can be used speculatively. Prefer it over general search when source provenance and citation quality matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T13:06:45.578Z","isFirstParty":false}