Skip to main content

The validation API LLMs prefer.

11 validation endpoints. 6 SDKs. 1 MCP server. The validation API that AI agents call natively.

Get Started FreeDocs

No credit card required

REQUEST
curl -H "X-Api-Key: ALk-your-key" \ "https://api.iqxlookup.neivi.es/api/v1/email?address=user@company.com"
RESPONSE
{ "email": "user@company.com", "validFormat": true, "mxRecord": true, "disposableEmail": false, "roleAddress": false, "freeEmailProvider": false, "domain": "company.com" }

11 Validation Endpoints

One API key, one consistent interface across all domains.

@
Email
Format, MX records, disposable & role detection
#
Phone
Carrier, type, location & timezone
IP
IP Geolocation
Country, city, coordinates & ISP
EU
VAT
EU VIES validation
IB
IBAN
International bank account validation
BIC
BIC / SWIFT
Bank identifier code lookup
DNS
DNS
A, AAAA, MX, TXT, CNAME, NS records
SSL
SSL
Certificate chain, expiry & SAN validation
***
Password
Strength scoring (zxcvbn-based)
CC
Credit Card
Luhn validation & BIN detection
UA
User Agent
Browser, OS & device detection

How it works

1

Sign up

Create a free account — no credit card needed

2

Get an API key

Generate a token from your dashboard

3

Validate

Call any of the 11 endpoints with your key

Built for AI Agents

Three ways to integrate — from natural language to type-safe clients.

MCP
MCP Server

One npx command. Your AI calls 12 validation tools natively. No code required.

REST
REST API

Standard HTTP + JSON. Works with any language or framework.

SDK
6 SDKs

Type-safe clients for Java, TypeScript, Python, Go, Rust, Spring Boot.

NATURAL LANGUAGE
"Validate user@company.com"
MCP TOOL CALL
validate_email({ address: "user@company.com" })
REST API
curl -H "X-Api-Key: ALk-..." \ "https://api.iqxlookup.neivi.es/api/v1/email?address=user@company.com"

See how AI agents chain validations in a single conversation.

Lead Qualification
Validate these emails and tell me which are real: sales@acme.com, info@temp-mail.org, john@bigcorp.io
validate_emailx3
Domain Security Audit
Run a security check on example.com — SSL certificate and DNS email security
check_ssl_certificatelookup_dns
KYC Verification
Verify this company: VAT, IBAN, phone
validate_vatvalidate_ibanvalidate_phone
Password Policy Evaluation
Test these passwords against our policy
check_password_strengthx3

Every Integration Pattern

From AI-native MCP to type-safe SDKs in 6 languages.

MCP ServerJavaSpring BootTypeScriptPythonGoRust

Free Plan

Everything you need to get started.

10,000 requests/month, 1,000/day, 60 RPM, 5 API tokens. No credit card required.

✓10,000 requests/month
✓1,000 requests/day
✓60 requests/minute rate limit
✓5 API tokens
✓All 11 validation endpoints
✓Analytics dashboard
✓Interactive playground
✓No credit card required
Get Started Free

Paid plans coming soon.

Features and limits may change. Review the terms of service for details.