AI Email Service

Free receive-only email addresses for AI agents at aiemailservice.com.

Base URL

https://aiemailservice.com

Quick Start

1. Get an API Key

POST /v1/api-key/create
Content-Type: application/json

{}

Returns { "api_key": "ak_..." } — save this, it's your only authentication.

2. Create a Mailbox

POST /v1/mailbox/create
x-api-key: ak_your_key
Content-Type: application/json

{}

Returns { "mailbox_id": "mbx_...", "email": "[email protected]", "status": "active" }.

Pass { "username": "preferred-name" } to request a specific name (random assigned if omitted).

3. Use the Email

Sign up for any service using the email address. Then read incoming mail via API.

4. Read Messages

GET /v1/mailbox/{mailbox_id}/messages
x-api-key: ak_your_key

5. Wait for a Specific Email (Long-Poll)

GET /v1/mailbox/{mailbox_id}/wait?timeout=30&[email protected]
x-api-key: ak_your_key

Hangs until a matching message arrives or timeout. Use this instead of polling.

6. Extract Verification Codes

GET /v1/mailbox/{mailbox_id}/codes
x-api-key: ak_your_key

Auto-extracts OTP codes, verification codes, and confirmation links.

Authentication

All requests require x-api-key: ak_your_key header (except POST /v1/api-key/create).

Alternative: Authorization: Bearer ak_your_key

All Endpoints

Example: Complete Signup Flow

// 1. Get API key
const { api_key } = await fetch('https://aiemailservice.com/v1/api-key/create', {
  method: 'POST', headers: { 'Content-Type': 'application/json' }, body: '{}'
}).then(r => r.json());

// 2. Create mailbox
const { mailbox_id, email } = await fetch('https://aiemailservice.com/v1/mailbox/create', {
  method: 'POST',
  headers: { 'x-api-key': api_key, 'Content-Type': 'application/json' },
  body: '{}'
}).then(r => r.json());

// 3. Sign up for a service using `email`
// ... (browser automation, API call, etc.)

// 4. Wait for verification email
const { message } = await fetch(
  `https://aiemailservice.com/v1/mailbox/${mailbox_id}/wait?timeout=30&[email protected]`,
  { headers: { 'x-api-key': api_key } }
).then(r => r.json());

// 5. Get extracted code
const codes = await fetch(
  `https://aiemailservice.com/v1/mailbox/${mailbox_id}/codes`,
  { headers: { 'x-api-key': api_key } }
).then(r => r.json());

console.log('Verification code:', codes[0]?.codes[0]);

Example: cURL

# Create API key
KEY=$(curl -s -X POST https://aiemailservice.com/v1/api-key/create -H 'Content-Type: application/json' -d '{}' | jq -r '.api_key')

# Create mailbox
curl -s -X POST https://aiemailservice.com/v1/mailbox/create 
  -H "x-api-key: $KEY" -H 'Content-Type: application/json' -d '{}'

# Read messages
curl -s https://aiemailservice.com/v1/mailbox/mbx_xxx/messages -H "x-api-key: $KEY"

# Wait for email from specific sender
curl -s "https://aiemailservice.com/v1/mailbox/mbx_xxx/wait?timeout=30&[email protected]" 
  -H "x-api-key: $KEY"

# Get verification codes
curl -s https://aiemailservice.com/v1/mailbox/mbx_xxx/codes -H "x-api-key: $KEY"

Pricing

• Free: Up to 5 mailboxes per API key. All features included (messages, wait, codes).
• Custom Username: £99/year to reserve a specific username (e.g., [email protected]). Random usernames are free.

Important Rules

1. Receive-only — no sending capability exists. Do not attempt to send.
2. Up to 5 free mailboxes per API key. Create additional API keys if needed.
3. Rate limit: 60 requests/minute.
4. Message retention: 30 days.
5. Max 100 inbound emails per mailbox per day.
6. Use /wait for long-polling instead of repeatedly hitting /messages.
7. The /codes endpoint handles OTP extraction — prefer it over parsing emails manually.