{"uid":"cap_Rc-CIHMCCZ__Dk-d6zAg8","slug":"stableemail-3d073de8","name":"StableEmail Inbox Top-Up (30 Days)","description":"Top up inbox 30 days ($1)","url":"https://stableemail.dev/api/inbox/topup","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"username":{"type":"string","allOf":[{"pattern":"^[a-z0-9][a-z0-9-]{1,28}[a-z0-9]$"},{"pattern":"^(?!.*--)"}]}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"1","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":"$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"},{"kind":"static","protocol":"x402","network":"base","amountUsd":"1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_j1ev-V8LWMyXBRLz39Q52","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"1","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null},{"uid":"pm_sY3fn7AcwHnMkBhg84BEl","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Extends a StableEmail forwarding inbox's active period by 30 days for $1 USDC","exampleAgentPrompt":"Top up my StableEmail inbox for another 30 days — it's about to expire and I want to keep receiving forwarded messages to it.","exampleUseCases":null,"resultDescription":"A confirmation that the inbox has been extended by 30 days, along with the new expiry date and updated inbox status.","failureModes":["Inbox not found or invalid inbox ID — returns error indicating unknown inbox","Insufficient USDC payment — payment rejected, inbox not extended","Inbox already expired and cannot be renewed — may require purchasing a new inbox","Network or payment processor timeout — inbox state unchanged, retry required"],"whenToPreferThis":"Use this endpoint when you need to extend an existing StableEmail forwarding inbox by exactly 30 days. Choose the 365-day top-up endpoint instead if you want a full year at a discounted rate ($8). Use this for month-to-month inbox maintenance when you need to keep a forwarding address active without a long-term commitment.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:40:44.806Z","isFirstParty":false}