Verify email addresses
$0.0025/requestEmail Verification
Check one email address for deliverability and DNS or SMTP risks.
Email validation API for AI agents
Scrollport gives AI agents 6 tools to verify email addresses, from Kitt AI, MillionVerifier, LeadMagic, Tomba, Hunter and 1 more, through one connection. Prices run from $0.0025/request to $0.0273/request, paid per use from one prepaid wallet with no subscription, provider accounts or API keys. Agents use them over MCP, the CLI or the HTTP API.
Updated
Validate email addresses with Scrollport
Use verified tools with pay-per-use pricing. Provider access is included. Tools that work in your own apps ask you to connect that account.
Connect your first agent to receive $1 trial credit.
Compare Email validation API tools
The lowest listed price is Email Verification from Kitt AI at $0.0025/request. Compare what each tool returns before choosing.
| Tool | Provider | What it returns | Price |
|---|---|---|---|
| Email Verification | Kitt AI | Check one email address for deliverability and DNS or SMTP risks. | $0.0025/request |
| Verify an email address is deliverable | MillionVerifier | Verify an email address in real time | $0.0025/request |
| Verify an email address is deliverable | LeadMagic | Check an email is real and deliverable, and whether its domain is catch-all | $0.0088/request |
| Verify an email address is deliverable | Tomba | Deliverability status, score, MX/SMTP checks, catch-all, disposable, gibberish and role-address flags for one address | $0.0125/request |
| Email Verifier | Hunter | Verify an email address and return deliverability, confidence and risk signals. | $0.0168/request |
| Email Validation | ZeroBounce | Validate an email address and return deliverability, status and risk information. | $0.0273/request |
6 available tools
Verify email addresses
$0.0025/requestVerify an email address is deliverable
Verify an email address in real time
Verify email addresses
$0.0088/requestVerify an email address is deliverable
Check an email is real and deliverable, and whether its domain is catch-all
Verify email addresses
$0.0125/requestVerify an email address is deliverable
Deliverability status, score, MX/SMTP checks, catch-all, disposable, gibberish and role-address flags for one address
Verify email addresses
$0.0168/requestEmail Verifier
Verify an email address and return deliverability, confidence and risk signals.
Verify email addresses
$0.0273/requestEmail Validation
Validate an email address and return deliverability, status and risk information.
ZeroBounceQuestions about Email validation API
How much do email validation API tools cost?
Prices run from $0.0025/request to $0.0273/request. You pay per use from one prepaid wallet with no subscription. Your agent sees the exact price before each run, and connecting your first agent adds $1 of trial credit.
What is the best email validation API for an AI agent?
It depends on what you need back and how much you will run it. Email Verification (Kitt AI, $0.0025/request): Check one email address for deliverability and DNS or SMTP risks. Verify an email address is deliverable (MillionVerifier, $0.0025/request): Verify an email address in real time. Verify an email address is deliverable (LeadMagic, $0.0088/request): Check an email is real and deliverable, and whether its domain is catch-all. Your agent can inspect the closest match and see its exact price before it runs.
Learn more about email validation
Ask your agent to interpret validation evidence in the context of the action you plan to take. A useful result separates deliverable, risky, unknown and policy-sensitive cases instead of forcing every address into yes or no.
What does an email validation API actually check?
Validation can assess syntax, domain and mail-server signals, mailbox availability and risk indicators such as disposable or catch-all domains. The exact evidence varies, so ask your agent to explain what the returned status supports and what remains uncertain.
Do not turn unknown into invalid
Catch-all, protected or temporarily unreachable domains may not support a definitive mailbox result. Keep these separate from clearly invalid addresses and decide whether the planned use justifies further review.
Validate close to the time of use
Mailbox and domain states change. For material outreach or account workflows, ask the agent to verify the final deduplicated list shortly before use and preserve the validation time.
Example prompt
This example asks for an interpretable result rather than a binary label.
Example prompt to give your agent
Use Scrollport to validate [EMAIL ADDRESS]. Explain the deliverability status, catch-all or disposable signals, and any uncertainty in plain language. Tell me what the result supports for [INTENDED USE], but do not send a message or treat an unknown result as invalid. Show me the price before the paid run.