# PayWeave Mail – Send Email from Disposable Inbox

> PayWeave Mail – Send Email from Disposable Inbox is a paid API for AI agents from mail.payweave.services, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Sends an outbound email from a disposable agent-owned inbox identified by slug, with support for to/cc/bcc, HTML/text body, and custom headers.

## Facts

- Endpoint: POST https://mail.payweave.services/inboxes/%7Bslug%7D/send
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/payweave-mail-send-email-from-disposable-inbox-b32f4c9d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_y2yWMC1LdRyVbE2qjKck7

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-send-email-from-disposable-inbox-b32f4c9d -d '<json body>'
```

Example prompt: Send an email from my disposable PayWeave inbox 'agent-notify-42' to hello@example.com with subject 'Your order is ready' and a plain-text body saying 'Hi there, your order has been processed and will ship tomorrow.'

## When to prefer this

Choose this endpoint when an AI agent needs to send outbound email from a disposable, agent-owned inbox without managing a full email service provider. Ideal for pay-per-use agent workflows where each email call costs $0.002 USDC and no monthly subscription is needed. Best when the agent has already created a PayWeave Mail inbox (identified by slug) and wants to send HTML or plain-text email with optional CC/BCC/reply-to fields.

## Known failure modes

- Invalid or unknown inbox slug returns 404
- Missing required 'to' or 'subject' fields returns 400 validation error
- Recipient previously unsubscribed — they appear in 'skipped' array and the message is not delivered to them
- Payment failure or insufficient USDC balance returns 402
- Malformed email address for 'to' field causes rejection
- Rate limit exceeded on the inbox returns 429

## How this service works

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

## Output

Returns a message_id confirming the send, an accepted_at ISO timestamp, and a skipped array listing any recipients who were dropped because they previously unsubscribed from this inbox.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "to",
  "subject"
 ],
 "properties": {
  "cc": {
   "type": "array"
  },
  "to": {
   "type": "string"
  },
  "bcc": {
   "type": "array"
  },
  "html": {
   "type": "string"
  },
  "text": {
   "type": "string"
  },
  "headers": {
   "type": "object"
  },
  "subject": {
   "type": "string"
  },
  "reply_to": {
   "type": "string"
  },
  "from_name": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "message_id",
  "accepted_at"
 ],
 "properties": {
  "skipped": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "description": "Recipients dropped because they previously unsubscribed from this inbox."
  },
  "message_id": {
   "type": "string"
  },
  "accepted_at": {
   "type": "string"
  }
 },
 "additionalProperties": false
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/payweave-mail-send-email-from-disposable-inbox-b32f4c9d/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)