{"uid":"cap_6h2ihlK_btKpTLrC20UH7","slug":"stableemail-topup-3144ae15","name":"StableEmail Inbox Topup (30 Days)","description":"Top up a forwarding inbox for 30 days ($1)","url":"https://stableemail.dev/api/inbox/topup?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["username"],"properties":{"username":{"type":"string","allOf":[{"pattern":"^[a-z0-9][a-z0-9-]{1,28}[a-z0-9]$"},{"pattern":"^(?!.*--)"}]}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["email","send","inbox","forwarding","subdomain","social"],"displayCostAmount":"1","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":"$1/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3HWL5fYpS56v7-HXakK6Y","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"1","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":"Extends a StableEmail forwarding inbox's active period by 30 days for $1 USDC","exampleAgentPrompt":"Top up my StableEmail forwarding inbox 'myusername' for another 30 days — charge the $1 renewal now so it doesn't expire.","exampleUseCases":null,"resultDescription":"Confirmation that the forwarding inbox has been extended by 30 days, with updated expiry information.","failureModes":["Username not found — inbox does not exist or was deleted","Invalid username format — must be lowercase alphanumeric with hyphens, no consecutive hyphens","Payment failure — insufficient USDC balance or payment protocol error","Inbox already expired beyond recovery window"],"whenToPreferThis":"Use this endpoint when you need to renew a StableEmail forwarding inbox for a standard 30-day period at $1. If you need a longer renewal period, prefer the Year endpoint which offers 365 days for $8 (34% savings).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T00:38:59.424Z","isFirstParty":false,"canonicalSlug":"stableemail-topup-3144ae15"}