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x402mailbox Mailbox Reader
x402
x402mailbox Mailbox Reader is a paid API for AI agents from x402mailbox.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-11-05).
Retrieves messages from a pay-per-access x402 mailbox endpoint hosted on Vercel
Price / call$0.01
Success—
StatusUnknown
How this service works
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Output
Returns the current contents of the x402-protected mailbox, likely a list of messages or message payloads accessible after the $0.01 USDC micropayment is authorized and processed.
Example use cases
Agent polling for new messages
“Poll my x402mailbox inbox and let me know if any new messages have arrived — go ahead and pay the 1-cent USDC fee to read them.”
Micropayment-gated inbox check
“Check the x402mailbox on Vercel and retrieve whatever messages are in there, it uses x402 so you'll need to pay $0.01 USDC to access it.”
Automated inbox monitoring
“Every hour, fetch the contents of my x402 mailbox and summarize any new messages you find — pay the micropayment each time you read it.”
Technical details
Endpoint
GEThttps://x402mailbox.vercel.app/mailbox?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to read messages from an x402-protocol-gated mailbox specifically hosted at x402mailbox.vercel.app, particularly in workflows where micropayment-per-access messaging is required or where the x402 payment rail is already integrated.
Side effects
- Payment not authorized — x402 payment handshake fails, returning 402 Payment Required
- Insufficient USDC balance — payment cannot be completed
- Mailbox empty — successful response but no messages returned
- Network/Vercel downtime — service temporarily unavailable
- Invalid or expired payment token — authentication rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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