{"uid":"cap_PbPeaKY9nOuh-Z9Oyo2Kn","slug":"forest-crypto-fear-greed-index-88365137","name":"Forest Crypto Fear & Greed Index","description":"Machine-readable contract for active Forest paid capabilities. Unsigned paid calls return HTTP 402 with a PAYMENT-REQUIRED x402 challenge.","url":"https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/crypto/fear-greed?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"days":{"type":"integer","maximum":30,"minimum":1,"description":"Public days value used to scope this lookup."}}},"responseSchema":{"type":"json","example":{"ok":true,"data":{"index":"bitcoin_crypto_fear_greed","source":"Alternative.me Crypto Fear & Greed Index","current":{"score":0,"observed_at":"example","classification":"example"},"history":[{"score":0,"observed_at":"example","classification":"example"}],"source_url":"https://alternative.me/crypto/fear-and-greed-index/","asset_scope":"bitcoin","attribution":"Data from Alternative.me","source_kind":"daily_sentiment_index","cache_age_ms":0,"returned_days":1,"requested_days":1,"trading_signal":false},"meta":{"cache":"miss","provider":"alternative-me-fear-greed","checked_at":"2026-01-01T00:00:00.000Z","duration_ms":0},"version":"1","capability":"crypto.fear-greed"}},"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_mz0nH6HIXObZ4vopmVz66","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 the current and historical Crypto Fear & Greed Index score from Alternative.me, scoped to a requested number of days","exampleAgentPrompt":"What's the current crypto fear and greed index, and show me how it's trended over the last 14 days?","exampleUseCases":[{"title":"Daily crypto trading sentiment check","prompt":"What's today's crypto fear and greed index score and classification — is the market in fear or greed right now?"},{"title":"Trend analysis before a buy decision","prompt":"Pull the crypto fear and greed index for the last 30 days so I can see how market sentiment has shifted before I decide whether to buy."},{"title":"Weekly market mood briefing","prompt":"Give me the crypto fear and greed index for the past 7 days — I want to see the daily scores and classifications to include in my weekly market summary."}],"resultDescription":"A JSON object containing the current fear/greed score (0–100), its classification (e.g. 'Extreme Fear', 'Greed'), the observation timestamp, and an array of historical daily entries for the requested number of days. Also includes a trading_signal boolean, asset scope (bitcoin), cache metadata (hit/miss, age in ms), provider attribution (Alternative.me), and request/response diagnostics.","failureModes":["days parameter out of range (must be 1–30) — likely 400 Bad Request","Unsigned or unpaid request returns HTTP 402 with x402 PAYMENT-REQUIRED challenge","Upstream Alternative.me data unavailable — possible 503 or degraded response","Stale cache served when upstream is slow — cache_age_ms will be elevated","Invalid JSON body or missing Content-Type — likely 400 parse error"],"whenToPreferThis":"Use this endpoint when you need a real-time or recent-historical sentiment signal specifically tied to the Alternative.me Crypto Fear & Greed Index for Bitcoin/crypto markets. Prefer it over raw price feeds when you want a normalized 0–100 sentiment score with classification labels and a trading signal flag. It is especially useful for agents automating daily market mood reports, enriching trade decision logic, or populating dashboards with sentiment context. It is a paid micro-transaction endpoint ($0.001 USDC) that returns structured, cached data — appropriate for high-frequency polling only if cache_age_ms is monitored.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T12:30:09.965Z","isFirstParty":false,"canonicalSlug":"forest-crypto-fear-greed-index-88365137"}