{"uid":"cap_MyJU46dlQVf6ofg5Jv3K5","slug":"stableemail-b7c411fb","name":"StableEmail Subdomain Inbox Create","description":"Create inbox on subdomain ($0.25)","url":"https://stableemail.dev/api/subdomain/inbox/create?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"forwardTo":{"type":"string","format":"email","pattern":"^(?!\\.)(?!.*\\.\\.)([A-Za-z0-9_'+\\-\\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\\-]*\\.)+[A-Za-z]{2,}$"},"localPart":{"type":"string","pattern":"^[a-z0-9][a-z0-9._+-]{0,62}[a-z0-9]$","maxLength":64,"minLength":1},"subdomain":{"type":"string","allOf":[{"pattern":"^[a-z0-9][a-z0-9-]{1,28}[a-z0-9]$"},{"pattern":"^(?!.*--)"}]}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.25","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":1,"rating":{"score":"0.00","successRate":"0.00","reviews":1,"stars":null,"state":"rated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_nvujKrXcKJSdrtrQ2djIf","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.25","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Creates a new email inbox on a StableEmail subdomain for receiving and managing email","exampleAgentPrompt":"Create a new inbox called 'support' on my StableEmail subdomain so I can start receiving emails there.","exampleUseCases":null,"resultDescription":"Returns confirmation of the newly created inbox, including the inbox identifier and the full email address provisioned on the subdomain, ready to receive messages.","failureModes":["Subdomain not owned or not verified — returns authorization or ownership error","Inbox name already exists on the subdomain — returns conflict error","Insufficient USDC balance to cover $0.25 creation fee — returns payment failure","Invalid inbox name format (special characters, too long) — returns validation error","DNS or SES verification not yet complete for subdomain — returns status error"],"whenToPreferThis":"Use this endpoint when you need to programmatically provision a new receiving email inbox on a pre-purchased StableEmail subdomain. Prefer this over the subdomain purchase endpoint (Buy) when the subdomain already exists and you just need a new mailbox. Ideal for applications that need to dynamically create per-user or per-purpose email addresses at scale.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":1,"lastUsedAt":"2026-07-20T22:01:24.422Z","lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:33:26.877Z","isFirstParty":false,"canonicalSlug":"stableemail-create-0718fbda"}