Email domain check
MX, SPF, and DMARC for a domain. Paid follow-up: GET /verify/domain at $0.02.
Free email and phone checks
Each tool does one check in the browser, with a limit of 30 requests a minute per network. None of them open a mailbox or look up a carrier. When you need that, the paid API is on the same paths the tools name, paid with USDC on Base. No signup and no API key.
Disposable email check
Disposable-domain list (CC0 1.0). Only the domain is accepted. Paid follow-up: POST /verify/email at $0.01.
Phone format check
E.164 and country only. Carrier and line type are POST /verify/phone at $0.02.
Real estate list cleaning
Real estate list hygiene. Paid follow-up: POST /verify/email/batch at $0.01 per address.
Ecommerce list cleaning
Ecommerce list hygiene. Paid follow-up: POST /verify/email/batch at $0.01 per address.
SaaS signups list cleaning
SaaS signups list hygiene. Paid follow-up: POST /verify/email/batch at $0.01 per address.
POST /verify/email
$0.01 per mailbox
Paid API
curl -i -X POST "https://getcontactverify.com/verify/email" \
-H "content-type: application/json" \
-d '{"email":"ada@example.com"}'
curl -i -X POST "https://getcontactverify.com/verify/email" \
-H "content-type: application/json" \
-H "PAYMENT-SIGNATURE: <payment>" \
-d '{"email":"ada@example.com"}'x402 and MCP
npx -y https://getcontactverify.com/mcp/contact-verify-mcp.tgz
{
"mcpServers": {
"contact-verify": {
"command": "npx",
"args": ["-y", "https://getcontactverify.com/mcp/contact-verify-mcp.tgz"],
"env": {
"EVM_PRIVATE_KEY": "0xYOUR_BASE_PRIVATE_KEY"
}
}
}
}
MCP tool: verify_emailPOST /verify/email/batch
$0.01 per email, up to 50
Paid API
curl -i -X POST "https://getcontactverify.com/verify/email/batch" \
-H "content-type: application/json" \
-d '{"emails":["ada@example.com"]}'
curl -i -X POST "https://getcontactverify.com/verify/email/batch" \
-H "content-type: application/json" \
-H "PAYMENT-SIGNATURE: <payment>" \
-d '{"emails":["ada@example.com"]}'x402 and MCP
npx -y https://getcontactverify.com/mcp/contact-verify-mcp.tgz
{
"mcpServers": {
"contact-verify": {
"command": "npx",
"args": ["-y", "https://getcontactverify.com/mcp/contact-verify-mcp.tgz"],
"env": {
"EVM_PRIVATE_KEY": "0xYOUR_BASE_PRIVATE_KEY"
}
}
}
}
MCP tool: verify_email_batchPOST /verify/phone
$0.02 per number
Paid API
curl -i -X POST "https://getcontactverify.com/verify/phone" \
-H "content-type: application/json" \
-d '{"phone":"+14155552671","country":"US"}'
curl -i -X POST "https://getcontactverify.com/verify/phone" \
-H "content-type: application/json" \
-H "PAYMENT-SIGNATURE: <payment>" \
-d '{"phone":"+14155552671","country":"US"}'x402 and MCP
npx -y https://getcontactverify.com/mcp/contact-verify-mcp.tgz
{
"mcpServers": {
"contact-verify": {
"command": "npx",
"args": ["-y", "https://getcontactverify.com/mcp/contact-verify-mcp.tgz"],
"env": {
"EVM_PRIVATE_KEY": "0xYOUR_BASE_PRIVATE_KEY"
}
}
}
}
MCP tool: lookup_phoneGET /verify/domain
$0.02 per domain
Paid API
curl -i "https://getcontactverify.com/verify/domain?domain=examp1e-billing.com"
curl -i "https://getcontactverify.com/verify/domain?domain=examp1e-billing.com" \
-H "PAYMENT-SIGNATURE: <payment>"x402 and MCP
npx -y https://getcontactverify.com/mcp/contact-verify-mcp.tgz
{
"mcpServers": {
"contact-verify": {
"command": "npx",
"args": ["-y", "https://getcontactverify.com/mcp/contact-verify-mcp.tgz"],
"env": {
"EVM_PRIVATE_KEY": "0xYOUR_BASE_PRIVATE_KEY"
}
}
}
}
MCP tool: verify_domainQuestions
Are these checks free?
Yes. Each tool allows 30 requests a minute per IP. They do not open a mailbox and they do not return a carrier or a line type.
How do I check a whole list?
POST /verify/email/batch takes up to 50 addresses at $0.01 each. A request without payment returns HTTP 402. Retry with PAYMENT-SIGNATURE.
Do you store what I type?
No. Email addresses and phone numbers are not written to logs, and the tools do not put them in the URL.