Email verification for AI agents and outbound workflows

Find deliverable emails for your agency or GTM team, including on catch-all domains.

No card required

Up to 95% lower prices than ZeroBounce, BounceBan, Hunter and MillionVerifier, at comparable quality

An email passes through verification into one of four independent results: valid, invalid, unknown or catch-all. Additional catch-all checks can resolve an address as valid or invalid; unresolved addresses remain catch-all. Illustrative examples. Select an outcome to replay its route.

Inside the check

Find deliverable emails in catch-all domains

Catch-all domains can contain both deliverable and undeliverable addresses. We check individual recipients, including behind secure email gateways (SEGs), without sending an email. See the benchmarks →

Catch-all and SEG verification

Additional address checks distinguish deliverable and undeliverable recipients on catch-all domains and behind secure email gateways.

Live SMTP checks

Check syntax, DNS, MX and recipient responses without sending an email.

Better bulk recovery

Upload up to one million CSV rows and select the email column. Preserve your original columns, row order and duplicates in the verified export.

One API for your agent

Connect from any agent tool that can make server-side HTTP requests. Saved CSV results include a verdict, readable message and check time.

CATCH-ALL VERIFICATION

person@example.org

01Syntax + domain PASS

02Catch-all domain DETECTED

03Additional checks COMPLETE

04Address deliverability VERIFIED

RESULTVALID

A deliverable address on a catch-all domain, verified without sending an email.

For agents & developers

One prompt to get started.

Connect your agent, or build directly with the API.

Copy the starter prompt

Paste it into Codex or Claude Code

Choose how to provide your API key, then share email addresses or a CSV

Available

CodexClaude Code

Coming soon

ChatGPTClaude

OR USE THE API DIRECTLYHTTP / JSON

curl 'https://api.agentsverify.dev/v1/verifications/single' \
  -H "X-API-Key: $AGENTS_VERIFY_API_KEY" \
  -H "Idempotency-Key: $REQUEST_ID" \
  -H 'Content-Type: application/json' \
  --data '{"email":"person@example.com"}'

201 CREATED → SAVED RESULT

Read the HTTP guide

From the field

In our clients’ words.

IN THEIR OWN WORDS · 01 / 03

Your pricing is so good.

GTM engineer · PRICE

Simple pricing

Buy the credits you need.

One-time purchases. No subscriptions. Paid credits never expire.

500 FREE CREDITS

100,000 CREDITS $44.70

$0.0004470 per charged result at this quantity.

0 CREDITS FOR UNKNOWN

No charge for an inconclusive result.

Explore pricing

FAQ

A few useful answers.

Can you verify catch-all email addresses?

Yes. We resolve most catch-all addresses into valid or invalid results using additional address-level checks. Only addresses that remain unresolved after verification receive the catch_all result.

Can you verify emails protected by secure email gateways?

Yes. Secure email gateways (SEGs) can mask whether a specific mailbox exists. We use additional recipient checks to determine deliverability behind these gateways, without sending an email.

How can I compare verification results?

Our email verification benchmarks compare five providers on the same reference list using valid, invalid, catch-all and unknown categories, alongside one-time pricing. Explore the result counts, prices and methodology, then use your free credits to evaluate the service with your own list.

What does each result cost?

Valid, invalid and catch-all results use one credit per unique email address. Unknown results and invalid email formats are free. Duplicates within the same submission share one check. The price per credit changes with quantity; see your exact total.

Does a check send an email?

No. We combine mail-server checks and additional address-level evidence without sending a verification email, including for catch-all and SEG-protected addresses.

Can I use it from an AI agent?

Yes. Copy the starter prompt into Codex or Claude Code. Your agent will ask how you’d like to provide your API key and invite you to paste email addresses or upload a CSV, then help you verify them and understand the results.

Can I choose the exact number of credits?

Yes. Choose any whole-number quantity from 5,000 to 1 million and see the exact price before checkout. There are no fixed packages, subscriptions or automatic top-ups. Paid credits never expire.

Is there a free way to try it?

Put your list to the test.

Get 500 free credits

Email verification for AI agents and outbound workflowsEmail verificationfor AI agentsfor outbound workflows