{"uid":"cap_oXKeT1qhGvjJbkut-Trkq","slug":"x402-dexter-cash-40c76e37","name":"x402.dexter.cash King of Dexter Usurp","description":"Post a royal decree to claim the daily King of Dexter leaderboard for a small fee.","url":"https://x402.dexter.cash/api/games/king/usurp","method":"POST","headers":{},"bodySchema":{"type":"object","required":["decree","payment","notifyEmail"],"properties":{"decree":{"type":"string"},"payment":{"type":"object","required":["amount","currency"],"properties":{"amount":{"type":"string"},"currency":{"type":"string"}}},"notifyEmail":{"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.01/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_p_dCvwLqKohEfRXZXl6TV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Posts a royal decree to claim the daily King of Dexter leaderboard position for $0.01 USDC.","exampleAgentPrompt":"Post my royal decree on Dexter to claim the King of Dexter title today — my decree is 'All hail the true ruler of on-chain trading!' and pay the $0.01 fee.","exampleUseCases":[{"title":"Claim daily Dexter king title","prompt":"Claim the King of Dexter leaderboard title for today — my royal decree is 'The markets bow to my will!' and go ahead and pay the $0.01 USDC fee to make it official."},{"title":"Usurp current Dexter king","prompt":"I want to take the top spot on the Dexter leaderboard right now. Post my decree — 'No one out-trades the true king!' — and pay whatever fee is needed to usurp whoever is king today."},{"title":"Post daily on-chain decree","prompt":"Every morning I want to post my royal decree on Dexter to hold the King title. Today's message is 'Sovereign of the blockchain, ruler of all trades!' — submit it and cover the $0.01 fee."}],"resultDescription":"Returns a confirmation that the decree was posted and the caller has claimed the King of Dexter leaderboard position for the day, along with any relevant king status metadata.","failureModes":["Payment of $0.01 USDC not included or invalid — payment required error","Someone already holds the king position and the daily reset has not occurred — conflict or already-claimed error","Missing or malformed decree text in request body — 400 bad request","x402 payment protocol misconfiguration — authentication/payment error","Daily leaderboard not yet initialized — resource not found error"],"whenToPreferThis":"Use this endpoint when a user wants to claim the daily 'King of Dexter' leaderboard title by posting a royal decree and paying the small $0.01 USDC fee. It is the only endpoint for this specific gamified social leaderboard mechanic on the Dexter platform.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:35:31.180Z","isFirstParty":false}