{"uid":"cap_4np07pKK0esPu77iRTeA5","slug":"crypto-sentiment-tag-api-1cfab01c","name":"Crypto Sentiment Tag API","description":"X402 micropayments server — AI agents pay USDC for OFAC screening, rates, and billing verification.","url":"https://x402helper.xyz/89e509/crypto/sentiment-tag?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":{"coin":{"type":"string","default":null}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"result":{},"success":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","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":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_6MHRcsXpV0jRsZBo7oCn8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a sentiment tag for a given cryptocurrency via a pay-per-call x402 micropayment endpoint.","exampleAgentPrompt":"What's the current sentiment tag for Bitcoin — is the market feeling bullish, bearish, or neutral on it right now?","exampleUseCases":[{"title":"Crypto portfolio sentiment check","prompt":"Can you pull the sentiment tag for Ethereum and tell me if the market is currently bullish or bearish on it?"},{"title":"Altcoin market mood scan","prompt":"What sentiment label is being applied to Solana right now — I want to know if the mood is positive or negative before making a move."},{"title":"Crypto news context enrichment","prompt":"I'm writing a brief on Dogecoin — can you grab the current sentiment tag for DOGE so I can include whether the market is feeling positive or negative about it?"}],"resultDescription":"A JSON object containing a sentiment tag or classification result for the specified cryptocurrency (e.g. bullish, bearish, neutral), returned with a success flag and a result payload.","failureModes":["Missing or unrecognized coin symbol returns an empty or error result","API returns generic success:true with empty result if coin is not indexed","Payment failure via x402 protocol blocks access entirely","Ambiguous coin name (e.g. 'BTC' vs 'Bitcoin') may yield no result if not matched exactly","Rate limiting or server errors may return non-200 responses"],"whenToPreferThis":"Choose this endpoint when you need a quick, low-cost sentiment classification tag for a specific cryptocurrency and are operating in an x402-enabled micropayment environment. It is best suited for lightweight enrichment tasks — tagging a coin's sentiment before a decision, enriching a report, or checking market mood — rather than deep sentiment analysis with source attribution or historical trends.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:42:23.947Z","isFirstParty":false,"canonicalSlug":"crypto-sentiment-tag-api-1cfab01c"}