# StableEmail Read Message

> StableEmail Read Message is a paid API for AI agents from stableemail.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Retrieves the full content of a single email message from a StableEmail subdomain inbox

## Facts

- Endpoint: POST https://stableemail.dev/api/subdomain/inbox/messages/read
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stableemail-4ec33f4b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AmkUvt4nBmiFQzzV3wKp4

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-4ec33f4b -d '<json body>'
```

Example prompt: Fetch the full content of message ID abc123 from my 'myteam' subdomain inbox on StableEmail.

## When to prefer this

Use this endpoint when you need to retrieve the full body and metadata of a specific known email message from a StableEmail subdomain inbox. Prefer this over the Messages (list) endpoint when you already have the message ID and need its content rather than a summary list.

## Known failure modes

- Message ID not found or already deleted — 404 error
- Invalid or unauthorized subdomain — 403 error
- Insufficient USDC balance to pay the $0.001 per-call fee — payment failure
- Malformed request body missing required message ID or subdomain — 400 error
- Inbox does not exist or has expired — 404 or 410 error

## How this service works

Read a single message

## Output

Returns the full content of a single email message from the specified subdomain inbox, including fields such as sender address, subject line, message body, and timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "messageId": {
   "type": "string",
   "minLength": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stableemail-4ec33f4b/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)