# Services from machineinbox.com on Zero

> machineinbox.com serves 5 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/machineinbox.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/machineinbox.com/health.json

## Services

- [Machine Inbox Pro — Pay-per-use Email Inbox for Agents](https://www.zero.xyz/c/machine-inbox-pro-pay-per-use-email-inbox-for-agents-f9430710/llms.txt): $5/call via x402. Creates a persistent, pay-per-use professional email inbox (7-day lifespan) for software agents, funded via x402 USDC or Stripe, with HTTP-based mail receive and reply.
- [Machine Inbox Verification Inbox](https://www.zero.xyz/c/machine-inbox-verification-inbox-6500af72/llms.txt): $0.05/call via x402. Creates a disposable one-hour email inbox for receiving a single signup verification code (up to 10 messages, no reply capability)
- [Machine Inbox — Create 7-Day Private Email Inbox](https://www.zero.xyz/c/machine-inbox-create-7-day-private-email-inbox-835a2e30/llms.txt): $2/call via x402. Creates a private, temporary email inbox that expires after seven days, returning a unique email address and access token for agent use
- [Machine Inbox — Extend Inbox](https://www.zero.xyz/c/machine-inbox-extend-inbox-883116a1/llms.txt): $1/call via x402. Extends an existing Machine Inbox email inbox by 7 days for $1 USDC via x402.
- [Machine Inbox — Extend Inbox by Seven Days](https://www.zero.xyz/c/machine-inbox-extend-inbox-by-seven-days-d32739c0/llms.txt): $1/call via x402. Extends the expiration of an existing Machine Inbox email inbox by seven additional days

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)