# AgentMail Create Inbox

> AgentMail Create Inbox is a paid API for AI agents from AgentMail via Orthogonal at mpp.orthogonal.com, paid per call via MPP, $2/call, status unknown (last checked 2026-09-19).

Creates a new programmatic email inbox for an AI agent, billed at $2/month with auto-deletion after 30 days of inactivity

## Facts

- Endpoint: POST https://mpp.orthogonal.com/agentmail/v0/inboxes
- Price: $2/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-09-19
- Activations on Zero: 0
- Provider: AgentMail via Orthogonal
- Docs: https://api.agentmail.to
- Website: https://api.agentmail.to
- Tags: email, inboxes, messaging, agents, ai, social
- Canonical page: https://www.zero.xyz/c/agentmail-via-orthogonal-agentmail-create-inbox-3e09f293
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ci6Q3F1IxJUBRgw8ApvHk

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

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agentmail-via-orthogonal-agentmail-create-inbox-3e09f293 -d '<json body>'
```

Example prompt: Set up a new AgentMail inbox for my agent so it can send and receive emails — I want a fresh inbox provisioned now.

## When to prefer this

Use this endpoint when an AI agent needs its own dedicated email address to send, receive, or manage email threads programmatically. Prefer AgentMail when building agent-native email workflows where inboxes need to be created on demand and managed via API, especially in multi-agent or automation contexts. Not suitable for human-managed email or when a persistent long-lived inbox is needed without guaranteed API activity.

## Known failure modes

- Payment failure or insufficient USDC balance — inbox not created, payment error returned
- Invalid or missing configuration parameters — 400 Bad Request
- Authentication failure — 401 Unauthorized
- Service unavailable — 503 or 500 error
- Duplicate inbox creation attempt if unique constraints are violated — 409 Conflict

## 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 a newly created inbox object including a unique inbox ID, assigned email address, and metadata such as creation timestamp. The inbox is immediately active and usable for sending and receiving emails via the AgentMail API. A recurring $2/month charge applies; the inbox is auto-deleted after 30 days of API inactivity.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentmail-via-orthogonal-agentmail-create-inbox-3e09f293/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.orthogonal.com](https://www.zero.xyz/host/mpp.orthogonal.com/llms.txt)