# StableEmail Inbox Messages List

> StableEmail Inbox Messages List is a paid API for AI agents from stableemail.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Lists all messages in a StableEmail subdomain inbox

## Facts

- Endpoint: POST https://stableemail.dev/api/subdomain/inbox/messages
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stableemail-0d030fff
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4nij-of9cJwbn-Plh2OkL

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 stableemail-0d030fff -d '<json body>'
```

Example prompt: Show me all the messages in my StableEmail inbox for the subdomain 'myapp' on stableemail.dev.

## When to prefer this

Use this endpoint when you need to programmatically read or poll emails received at a stableemail.dev subdomain inbox, especially in agentic workflows that require processing inbound email. Prefer over generic IMAP/email APIs when using StableEmail's subdomain-based disposable inbox system with x402 micropayment access.

## Known failure modes

- Invalid or unrecognized subdomain returns an error
- Expired inbox (past 30-day period) may return empty or error
- Authentication/payment failure via x402 protocol
- Subdomain not yet verified returns error
- Network timeout or service unavailability

## How this service works

List inbox messages

## Output

Returns a list of inbox messages for the specified subdomain, including message metadata such as sender, subject, date, and message content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "default": 20,
   "maximum": 100,
   "minimum": 1
  },
  "cursor": {
   "type": "string",
   "minLength": 1
  },
  "localPart": {
   "type": "string",
   "pattern": "^[a-z0-9][a-z0-9._+-]{0,62}[a-z0-9]$",
   "maxLength": 64,
   "minLength": 1
  },
  "subdomain": {
   "type": "string",
   "allOf": [
    {
     "pattern": "^[a-z0-9][a-z0-9-]{1,28}[a-z0-9]$"
    },
    {
     "pattern": "^(?!.*--)"
    }
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stableemail-0d030fff/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stableemail.dev](https://www.zero.xyz/host/stableemail.dev/llms.txt)