Verification for AI agents. Captchas, SMS codes and emails, solved.

One MCP server and REST API that gets your agents through signups, logins and checkouts without a human. One key, one balance.

Get your API key Read the docs

Pay only for what clears. No subscription.

Create an account on example.com and confirm itRunningCompleted

Phone number
Captcha
SMS code
Email link

example.com/welcome

Example

Create your account

Email[email protected]

Phone number+31Renting a number…+31 6 1234 4821

Verification code482913

Create account

Example

Check your inbox

We sent a link to [email protected]

EConfirm your account[email protected]WaitingOpened

Welcome to Example

Your account is confirmed.

An agent with the clearance.rest MCP server

✻ signup-agent

cwd: ~/projects/signups

mcp: clearance-rest connected

> Create an account on example.com and confirm it

⏺The form needs a phone number. Renting a temporary one.
⏺clearance-rest - rent_number (MCP)(type: "temporary", country: "NL")
⎿Rented +31 6 1234 4821, refunded if no SMS arrives
⏺There is a Turnstile captcha on the form. Solving it.
⏺clearance-rest - resolve_captcha (MCP)(type: "turnstile", website_url: "example.com/signup")
⎿Solved in 6.2s, token returned
⏺Form submitted. Waiting for the SMS code.
⏺clearance-rest - wait_for_sms (MCP)(number: "+31612344821")
⎿Received, code 482913
⏺Code accepted. Waiting for the confirmation email.
⏺clearance-rest - wait_for_email (MCP)(email_account: "[email protected]", email_sender: "[email protected]")
⎿Received, confirmation link extracted

⏺Done. The account is created and the email is confirmed. Four checkpoints cleared.

? for shortcuts


										1import { createClient } from "@clearance-rest/sdk";2 3const client = createClient({4  apiKey: process.env.CLEARANCE_REST_API_KEY5});6 
									
										7const rental = await client.numbers.rent({8  type: "temporary", country: "NL", service: "ot",9});10await page.fill("#phone", rental.item.phone_number);// → "+31 6 1234 4821", refunded if no SMS arrives
									
										11 
									
										12const captcha = await client.captchas.resolve({13  type: "turnstile",14  website_url: "https://example.com/signup",15  website_key: "0x4AAAAAAA…",16});17await page.fill("[name=cf-turnstile-response]", captcha.solution.token);// → status: "solved" in 6.2s
									
										18 
									
										19const sms = await client.numbers.waitForSms({20  number: rental.item.phone_number, codeRegex: "(\\d{6})",21});22await page.fill("#code", sms.code);23await page.click("text=Create account");// → sms.code = "482913"
									
										24 
									
										25const email = await client.emails.wait({26  emailAccount: "[email protected]",27  codeRegex: "(https://example\\.com/confirm/\\S+)",28});29await page.goto(email.code);// → link opened, account confirmed

Works with

Claude
Cursor
MCP clients
Node.js
PHP
cURL

All majorcaptcha types, from reCAPTCHA to Turnstile

Worldwidecountries with phone numbers for SMS codes

Per solveper 1,000 solved captchas, failures are free

1 keyfor the MCP server, the REST API and both SDKs

One API for every checkpoint. Everything a signup, login or checkout asks an automated client to prove, behind the same key, balance and error format.

Solve any captcha. Tokens for reCAPTCHA, hCaptcha, Turnstile and more. Failed and timed-out solves are free.

How solving works

Receive SMS codes. Temporary numbers by country, monthly lines or your own SIM. No SMS, no charge.

Number types

Confirm emails. Connect Gmail, Outlook or your own domains. Your agent gets the code or link back.

Connecting mailboxes

Stay in control. Choose the tools each agent may use, cap its spend and get signed webhooks for every event.

Webhook events

Live in three steps.

No accounts with other providers and no proxies to manage. Setup takes a few minutes.

1
Create an account
Sign up and top up your balance from $10. There is no subscription and unused balance is refundable.
Get your API key
2
Connect your agent
Add the MCP server to Claude, Cursor or any other MCP client, or call the REST API with your key.
claude mcp add --transport http clearance-rest https://mcp.clearance.rest/mcp
3
Let it run
Your agent calls the tools when it meets a checkpoint. Every call and charge shows up in the console.
Read the MCP guide

Built for developers, too.

Typed SDKs for Node.js and PHP, plain REST for everything else, and an OpenAPI description you can generate from.

# Command-line agents
claude mcp add --transport http clearance-rest https://mcp.clearance.rest/mcp

# Claude: Settings → Connectors → Add custom connector
# Cursor: { "mcpServers": { "clearance-rest": { "url": "https://mcp.clearance.rest/mcp" } } }

import { createClient } from "@clearance-rest/sdk";

const client = createClient({
  apiKey: process.env.CLEARANCE_REST_API_KEY
});

const rental = await client.numbers.rent({ type: "temporary", country: "NL", service: "tg" });
const sms = await client.numbers.waitForSms({ number: rental.item.phone_number });

console.log(sms.code);

use ClearanceRest\Client;

$client = new Client([
    'api_key' => getenv('CLEARANCE_REST_API_KEY'),
]);

$result = $client->captchas->resolve('turnstile', [
    'website_url' => 'https://example.com/signup',
    'website_key' => '0x4AAA…',
]);

echo $result['solution']['token'];

curl "https://api.clearance.rest/emails/wait?email_account=agent%40inbox.dev&email_sender=noreply%40example.com" \
  -H "X-API-Key: cr_live_…" \
  -H "X-Service-Timeout: 60000"

MCP serverStreamable HTTP with OAuth sign-in or a bearer token. Connect
SDKsNode.js and PHP, with the same method names as the API. Install
REST APIOne key in X-API-Key, one error format. Reference

Pay only for what clears.

One prepaid USD balance for every service. No subscription, no seats, and unused balance is refundable.

CaptchasSee pricingper 1,000 solves

Failed and timed-out solves are free.

Phone numbersSee pricingper number

Temporary numbers without an SMS are refunded.

Email deliverySee pricingper 1,000 emails

Connecting mailboxes is free.

Your own SIMSee pricingper month

Plus a small fee per SMS.

MCP server and REST API
Node.js and PHP SDKs
Signed webhooks
Spend caps per agent
Teams with roles

Start with $10 Every captcha type and country

Questions, answered.

Something else? Email [email protected].

Do I need accounts with other providers?

No. One clearance.rest account and balance covers captchas, phone numbers and inboxes.

What does it cost to start?

Top up from $10. There is no subscription; you pay per solved captcha, rented number or delivered email.

What if a captcha fails or no SMS arrives?

Failed and timed-out captchas cost nothing. A temporary number that gets no SMS is refunded to your balance when it expires.

How does an agent connect?

Add https://mcp.clearance.rest/mcp as a remote MCP server and sign in, or paste a token from the console.

Which clients and languages work?

Any MCP client, including Claude and Cursor. For code, use the Node.js or PHP SDK or plain REST from any language.

Can I limit what an agent spends?

Yes. Set daily and monthly caps per project and per MCP connection, and allow only the tools it needs.

What happens to unused balance?

The account owner can ask for a refund of unused balance from the console. Balance already spent is not refunded.

Ship agents that finish the job.

Create an account, top up and connect your first agent in a few minutes.