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AgentMail Inbox Creation via x402.orthogonal.com
x402
AgentMail Inbox Creation via x402.orthogonal.com is a paid API for AI agents from x402.orthogonal.com, paid per call via x402, $2/call, status unknown (last checked 2026-09-15).
Creates a new email inbox for an AI agent, returning a unique inbox_id email address (e.g., myagent@agentmail.to) for subsequent email operations.
Price / call$2
Success—
StatusUnknown
How this service works
Create a new email inbox. Inboxes cost $2/month. Inboxes with no API activity for 30+ days are automatically deleted. Any request using the inbox resets the inactivity timer. Returns an inbox_id in email format (e.g., myagent@agentmail.to) used for all subsequent operations. If username is omitted, a random one is generated.
Output
Returns an inbox_id in email format (e.g., myagent@agentmail.to) that serves as the identifier for all subsequent inbox operations such as reading, sending, or deleting emails. The inbox is active immediately and auto-deletes after 30 days of inactivity.
Example use cases
Support inbox for an agent fleet
“Set up a new email inbox called 'helpdesk' with the display name 'Help Desk Agent' so my customer support agent can receive and respond to user emails.”
Ephemeral inbox for a one-off task
“Create a randomly named agentmail.to inbox for my agent to use during this research task — I don't need a specific username, just generate one.”
Branded inbox for a named assistant
“Provision an email inbox with username 'aria' and display name 'Aria from Acme' on agentmail.to so my sales assistant agent can send outreach emails with a professional identity.”
Technical details
Endpoint
POSThttps://x402.orthogonal.com/agentmail/v0/inboxesWhen to prefer
Use this endpoint when an AI agent needs a real, addressable email inbox to send or receive messages as part of an automated workflow. It is especially suited for agents that need persistent email identities, customer-facing communication inboxes, or ephemeral addresses for task-scoped interactions. Prefer this over generic email APIs when you need agent-native inbox lifecycle management with automatic cleanup.
Side effects
- Invalid or unverified custom domain — only verified custom domains are accepted; defaults to agentmail.to if omitted
- Username collision — if a requested username already exists, the request may fail or return an error
- Payment failure — the $2 USDC charge via x402 may fail if the wallet lacks sufficient funds
- Malformed input — invalid characters in username or display_name may cause a 400 error
- Inactivity deletion — inbox is silently deleted if no API activity occurs for 30+ days
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | Email domain. Must be a verified custom domain. Defaults to agentmail.to. |
| username | string | Local part of the email address (e.g., myagent becomes myagent@agentmail.to). Randomly generated if omitted. |
| client_id | string | Your own identifier to associate with this inbox. |
| display_name | string | Human-readable name shown in the From header (e.g., My Agent <myagent@agentmail.to>). |
Tags
x402
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