clearance.rest

Wait for the SMS, the email, or the captcha result.

clearance.rest holds your request open until it arrives, then answers with the code. No polling loop and no webhook to host for any wait. Use the REST API, an SDK, or let an AI agent call it through MCP. You pay per use from a USD balance.

Make your first request Connect an AI agent API reference

GET /numbers/sms/wait

number=+14155550100

code_regex=\d{6}

X-Service-Timeout: 120000

200 OK

The request is open. Nothing to return yet.

{
  "success": true,
  "code": "482913",
  "from": "+15559998888",
  "to": "+14155550100",
  "body": "Your code is 482913",
  "message_id": "0190...",
  "received_at": "2026-10-25T10:00:03.120Z"
}

One request, one result

Service	Request	Waits for	Returns
Numbers	`GET /numbers/sms/wait`	An SMS on a temporary, monthly or device number	The message, and the code extracted from it
Emails	`GET /emails/wait`	An email to a mailbox you connected	The email, and the code extracted from it
Captchas	`POST /captchas/resolve`	The captcha being solved	The solution, with the same shape for every type

Where to go next

Quickstart: Create an account, add balance and receive your first SMS.
Authentication: Send your project’s API key in the X-API-Key header.
Billing: What costs money, spend limits and refunds.
MCP: Let Claude, Cursor or any MCP client rent numbers and solve captchas within a budget.
Node.js and PHP SDKs: The same calls, with typed errors and deadlines built in.
Webhooks: Be told when a number expires, a mailbox connects or the balance runs low.