Now accepting early access

Know if that email
is still good
before you send.

An API built for agents and outreach tools. Find emails from any domain, verify they're current, and get a confidence score — without burning your sender reputation on stale data.

No spam. Early access includes launch credits and founding-user perks.

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80%+
// verified accuracy
<200ms
// avg response time
5 checks
// verification layers
REST API
// agent-ready

// the problem

Existing tools find emails.
They don't tell you if they're still valid.

People change jobs constantly

The average tenure is under 3 years. A database scraped 6 months ago is already losing accuracy fast. Your agent sends to a dead inbox, gets a hard bounce, and your domain reputation takes the hit.

Catch-all domains are invisible traps

Thousands of companies accept all mail regardless of whether the mailbox exists. SMTP says "delivered." Your email lands nowhere. Standard verification tools mark these as valid. They're not.

Static databases go stale overnight

Most tools pull from a database crawled weeks or months ago. Real-time verification at the moment of request is the only way to know if an address works today — not when it was last indexed.

Agents need structured confidence, not guesses

A boolean "valid/invalid" is useless for an AI agent making decisions. You need a score, a status, and the signal breakdown — so your agent can apply its own threshold and explain its choices.

// how it works

Five checks. One confidence score.

01 — free

Syntax + format

Regex and RFC-5322 validation. Instant. No external calls. Bad formats never proceed further — zero cost exit.

02 — 0.1 credits

DNS / MX lookup

Confirm the domain exists and has mail exchange records configured. Dead domains exit here.

03 — 0.5 credits

SMTP handshake

Knock on the mail server door without sending anything. If it hard-rejects the address, we stop here.

04 — 1 credit

Catch-all detection

Probe the server with a known-fake address. If it accepts everything, we flag this domain and adjust the score accordingly.

05 — 2 credits

Recency signals

Cross-reference public signals for job changes and role updates. This is the layer nobody else provides — and it's where accuracy compounds.

status: valid
status: risky
status: catch-all
status: invalid
status: stale
confidence: 0–100

// built for agents

One request.
Everything your agent needs.

Clean REST API with structured JSON responses. Every verification returns a confidence score, a status label, and the full signal breakdown — so your agent can make its own call on what threshold to use.

REST API Bulk endpoint Webhooks 
# verify an email
curl -X POST https://api.verifio.dev/v1/verify   -H "Authorization: Bearer vrf_..."   -d '{"email": "john@acme.com"}'
email "john@acme.com"
status "valid"
confidence 87
credits_used 1.6
job_change_risk "low"
last_seen_active "2025-11"

Stop guessing.
Start knowing.

Join the waitlist for early access, launch credits, and founding-user perks.