Check if an email address is real before you hit send. Verifies syntax, DNS, MX records, SMTP mailbox existence, and cross-references multiple providers. All in real time, no signup required.

• Syntax & DNS — validates format, MX records, A-record fallback
• SMTP mailbox probe — RCPT TO with STARTTLS and greylisting retry
• Provider verification — direct account checks for Google, Apple, Microsoft
• Cross-referencing — Gravatar, GitHub, PGP keyservers, HIBP breaches
• Domain intelligence — website liveness, parked detection, domain age, DNSBL blacklists
• Pattern analysis — entropy scoring, business pattern matching, bulk anomaly detection
• Typo detection — suggests corrections for common domain misspellings

Docle is a Vestauth tool. Agents can authenticate with cryptographic signatures and get higher rate limits.

# create an agent identity
vestauth agent init

# verify an email
vestauth agent curl -X POST https://docle.co/api/verify \
  -H "Content-Type: application/json" \
  -d '{"emails":["test@example.com"]}'

# check your usage
vestauth agent curl https://docle.co/api/agent/usage -X GET

Authenticated agents get 60 requests/min and 5,000 emails/day (vs 10/min and 500/day for anonymous).

All configurable via environment variables (e.g. NUXT_RATE_LIMIT_DAILY_EMAIL_CAP=1000).

npm install -g openboot
boot setup

boot dev # or boot up

Set NUXT_HIBP_API_KEY to enable Have I Been Pwned breach checks ($3.50/month from haveibeenpwned.com).

FSL-1.1-MIT