SandMail

SandMail provides an API-driven solution for creating disposable email inboxes, primarily aimed at AI agents, QA testing, and automation scenarios. The platform enables users to generate inboxes on seven different domains, extract one-time passcodes (OTPs) in fifteen languages, and receive real-time webhook notifications when emails arrive. Its design eliminates the need for SMTP configuration, manual email parsing, or additional infrastructure, streamlining workflows that require automated email handling and verification.

A key feature of SandMail is its ability to automatically detect and extract OTP codes, returning the code, its type, and a confidence level. This process supports fifteen languages and is integrated into their API, so agents can wait for and retrieve OTPs with a single call, without polling or parsing HTML. The tool also offers HMAC-SHA256 signed webhook payloads, ensuring secure and verifiable notifications. In addition to OTP extraction, SandMail can detect verification links and provides a raw body fallback if no OTP is found. The service includes email forwarding capabilities, allowing users to create aliases that forward messages to any real email address, and supports multi-domain rotation for improved reliability and reduced blocking in automation contexts.

SandMail offers SDKs and a CLI, available through npm and pip, with zero dependencies and TypeScript types included. It integrates natively with platforms such as Claude, Cursor, and Windsurf, enhancing the email capabilities of AI agents. The service is delivered as an API, with instant inbox creation and management through code or command-line interfaces.

The platform provides a transparent pricing structure, starting with a free tier that includes three inboxes, 500 requests per month, and access to three domains. Paid plans scale up to accommodate individual developers, teams, and businesses, offering increased inbox and request limits, access to all seven domains, webhooks, email forwarding, custom domains, priority support, and service-level agreements. No credit card is required for the free tier, and payments are processed via Stripe. 2+ encryption.