# agmail 24-Hour Receive-Only Email Inbox (MPP)

> agmail 24-Hour Receive-Only Email Inbox (MPP) is a paid API for AI agents from agmail.shveik.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-10).

Creates a temporary 24-hour receive-only email inbox for an AI agent, paid via MPP (stablecoins), returning the inbox address, secret, and expiry details.

## Facts

- Endpoint: POST https://agmail.shveik.dev/v1/mpp/inbox-24h?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agmail-24-hour-receive-only-email-inbox-mpp-da0a35ca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_T1HAzQXPhDD7PCFYAtTi4

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 agmail-24-hour-receive-only-email-inbox-mpp-da0a35ca -d '<json body>'
```

Example prompt: Create a temporary 24-hour email inbox called 'taskrunner42' so my agent can receive replies for the next day.

## When to prefer this

Choose this endpoint when an AI agent needs a temporary receive-only email address that lasts a full 24 hours (as opposed to a shorter 1-hour plan) and when paying via MPP with stablecoins. Prefer this over the 1-hour variant for longer-running tasks or workflows that may span multiple hours. Ideal for agents that need to receive a verification email, capture callbacks, or listen for replies over the course of a working day.

## Known failure modes

- Invalid name format — name must match ^[a-zA-Z0-9]([a-zA-Z0-9._-]{1,30})[a-zA-Z0-9]$ or the request is rejected
- Payment failure — if the MPP stablecoin payment of $0.1 USDC cannot be processed, the inbox is not created
- Name already taken — if the requested name is already in use, a conflict error may be returned
- Expired inbox — attempting to use an inbox after its 24-hour window results in rejection
- Message cap exceeded — inbox stops accepting messages once the 50-message limit is hit

## How this service works

Receive-only email inboxes for AI agents, by the hour. Pay in stablecoins with x402 or MPP; one call returns the code or the link.

## Output

Returns a JSON object containing: the plan type ('1h' or similar), a secret token for inbox access (e.g. 'agm_…'), the assigned email address (e.g. 'acme42@agmail…'), a message cap (e.g. 50 messages), a unique inbox ID (e.g. 'ib_…'), and an ISO 8601 expiry timestamp indicating when the inbox will be deactivated.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "name": {
   "type": "string",
   "pattern": "^[a-zA-Z0-9]([a-zA-Z0-9._-]{1,30})[a-zA-Z0-9]$",
   "maxLength": 32,
   "minLength": 3
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "plan": "1h",
  "secret": "agm_01234567…",
  "address": "acme42@agmai…",
  "msg_cap": 50,
  "inbox_id": "ib_012345678…",
  "expires_at": "2026-10-06T1…"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agmail-24-hour-receive-only-email-inbox-mpp-da0a35ca/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agmail.shveik.dev](https://www.zero.xyz/host/agmail.shveik.dev/llms.txt)