{"uid":"cap_QWTOxU6aihM29mrLFSeuF","slug":"stableemail-cancel-ee37d699","name":"StableEmail Cancel Inbox","description":"Cancel inbox and get pro-rata refund (free)","url":"https://stableemail.dev/api/inbox/cancel?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["username"],"properties":{"username":{"type":"string","allOf":[{"pattern":"^[a-z0-9][a-z0-9-]{1,28}[a-z0-9]$"},{"pattern":"^(?!.*--)"}]},"refundAddress":{"type":"string","pattern":"^0x[a-fA-F0-9]{40}$"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["email","send","inbox","forwarding","subdomain","social"],"displayCostAmount":"0","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"proven_free","priceSource":"registry","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":"free","summary":"Free","primary":{"kind":"free","protocol":"mpp","network":"tempo","amountUsd":null,"per":"call","confidence":"unknown"},"accepted":[{"kind":"free","protocol":"mpp","network":"tempo","amountUsd":null,"per":"call","confidence":"unknown"}]},"paymentMethods":[{"uid":"pm_1wf7PBrSpwTSMSnzPpsX1","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0","costPer":"request","priority":0,"asset":"0x20c000000000000000000000b9537d11c60e8b50","unit":"request","depositMicros":null,"planRef":null}],"brandName":"StableEmail","brandSlug":"stableemail","brandBaseUrl":"https://stableemail.dev","brandDocsUrl":"https://stableemail.dev","whatItDoes":"Cancels an active StableEmail inbox and issues a pro-rata refund to the specified address","exampleAgentPrompt":"Cancel my StableEmail inbox with username 'myapp-relay' and send the pro-rata refund to my wallet at 0xAbC1234567890abcdef1234567890abcdef123456.","exampleUseCases":null,"resultDescription":"Confirmation that the inbox has been cancelled and a pro-rata refund has been initiated, along with details about the refund amount or transaction to the provided Ethereum wallet address.","failureModes":["Username not found — inbox does not exist","Invalid username format — must match pattern ^[a-z0-9][a-z0-9-]{1,28}[a-z0-9]$ with no consecutive hyphens","Invalid refundAddress — must be a valid 0x-prefixed 40-character hex Ethereum address","Inbox already expired or previously cancelled — no refund available","Network or payment settlement failure during refund processing"],"whenToPreferThis":"Use this endpoint when you want to permanently close a StableEmail inbox before its 30-day period expires and recover unused value. It is the correct endpoint for deactivating inboxes rather than just updating settings or deleting individual messages.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T00:34:24.301Z","isFirstParty":false,"canonicalSlug":"stableemail-cancel-ee37d699"}