# PayWeave Mail – Extend Inbox TTL

> PayWeave Mail – Extend Inbox TTL is a paid API for AI agents from mail.payweave.services, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Renews the expiration date of an existing disposable email inbox by resetting its TTL

## Facts

- Endpoint: POST https://mail.payweave.services/inboxes/%7Bslug%7D/extend
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/payweave-mail-extend-inbox-ttl-a8a163f7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gvp7bXJpHT0ZpGQpbRTm0

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 payweave-mail-extend-inbox-ttl-a8a163f7 -d '<json body>'
```

Example prompt: My PayWeave Mail inbox 'agent-xyz42' is about to expire — can you extend it so it stays active for another TTL cycle?

## When to prefer this

Use this endpoint when an agent holds a previously created PayWeave Mail disposable inbox that is approaching or near its expiry and needs to be kept alive without creating a brand new inbox. Prefer this over inbox creation when the slug and any received emails in that inbox must be preserved. Ideal for long-running agent workflows that need persistent but ephemeral email addresses.

## Known failure modes

- Inbox slug not found — 404 with unknown inbox error
- Inbox already permanently expired and cannot be renewed — 410 or 422
- Payment of $0.01 USDC via x402 fails or is rejected — 402 Payment Required
- Invalid or missing slug in URL path — 400 Bad Request
- Rate limiting or account suspension — 429 or 403

## How this service works

Disposable email inboxes for agents — create, receive, read, and send. Pay per call.

## Output

Returns the inbox slug, the number of TTL days added, and the new ISO 8601 expiry timestamp after the renewal is applied.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "anyOf": [
      {
       "not": {}
      },
      {
       "type": "object",
       "properties": {},
       "additionalProperties": false
      }
     ]
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "const": "POST"
    },
    "bodyType": {
     "type": "string",
     "const": "json"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "example"
   ],
   "properties": {
    "example": {
     "type": "object",
     "required": [
      "slug",
      "ttl_days",
      "expires_at"
     ],
     "properties": {
      "slug": {
       "type": "string"
      },
      "ttl_days": {
       "type": "integer"
      },
      "expires_at": {
       "type": "string",
       "description": "New expiry after renewal (now + ttl_days)."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/payweave-mail-extend-inbox-ttl-a8a163f7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mail.payweave.services](https://www.zero.xyz/host/mail.payweave.services/llms.txt)