Machine Inbox

Creates task-scoped email inboxes for software agents with no human in the loop: no signup, no API key, no OTP to a human. Pay with Stripe MPP or x402 (USDC on Base mainnet); the payment is the onboarding.

Skills

• Create inbox
  Buy a seven-day inbox ($2.00), thirty-day pro inbox ($5.00), or one-hour verification inbox ($0.05 by x402 USDC, $0.50 by card) with Stripe MPP or x402; x402 pro and verification purchases use their own paths under /api/v1/inboxes.
  emailinboxmppx402
• Extend inbox
  Extend an active inbox by seven days for $1.00 over Stripe MPP or x402.
  emailinboxmppx402
• Receive email
  List and fetch mail sent to a private inbox, including a verification-code extraction endpoint and per-message prompt-injection risk.
  email
• Configure webhook
  Register an HMAC-signed webhook that fires on every inbound message with metadata, extracted verification codes, and injection risk.
  emailwebhook
• Reply to email
  Send an included reply in an existing inbound thread.
  emailreply

How to call

https://machineinbox.com

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