# agmail Inbox 1-Hour Renewal (MPP)

> agmail Inbox 1-Hour Renewal (MPP) is a paid API for AI agents from agmail.shveik.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-10).

Renews an existing agmail receive-only email inbox for an additional 1-hour window, paying via MPP (Micropayment Protocol) with stablecoins.

## Facts

- Endpoint: POST https://agmail.shveik.dev/v1/mpp/inbox-1h-renew?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agmail-inbox-1-hour-renewal-mpp-e558c0ca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WODsE_Vrh9qoluh-3_KYV

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-inbox-1-hour-renewal-mpp-e558c0ca -d '<json body>'
```

Example prompt: Renew the agmail inbox ib_0123456789ab for another hour — use the MPP payment endpoint and my secret to authorize it.

## When to prefer this

Use this endpoint when you have an existing agmail inbox that needs its 1-hour lease extended and you are paying via MPP (Micropayment Protocol) rather than x402. Choose this over the x402 sibling endpoint when your agent's payment stack is MPP-native. Prefer over creating a new inbox when you want to preserve the same inbox_id and email address continuity.

## Known failure modes

- Invalid inbox_id format (must match ^ib_[0-9a-f]{12}$) returns a 400 error
- Wrong or missing secret results in authentication failure
- Payment settlement failure or insufficient stablecoin balance prevents renewal
- Inbox already expired before renewal queued — extension may not apply
- Network timeout before payment confirmation — status stays queued indefinitely

## 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 with the inbox_id, the plan ('1h'), a status of 'queued' confirming the renewal payment is in flight, and a 'next' message explaining that the extension will be applied once the payment settles (approximately one minute).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "secret": {
   "type": "string"
  },
  "inbox_id": {
   "type": "string",
   "pattern": "^ib_[0-9a-f]{12}$"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "next": "The extension is applied once the payment has settled (a minute or so); GET /v1/…",
  "plan": "1h",
  "status": "queued",
  "inbox_id": "ib_0123456789ab"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agmail-inbox-1-hour-renewal-mpp-e558c0ca/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)