Datacircle

InboxPolicy pricing: email verification API, POST /v1/batches/verify

InboxPolicy's sitellms.txtEmail validation API: 190+ verification providers comparedInboxPolicy: email verification API alternatives

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17% complete: 1 of the 6 key fields we checkSee the 6 fields
$10.00per 1,000 emailsIn our email verification API benchmark, the best plan from InboxPolicy scores 53.2 out of 100. InboxPolicy ranks 65th of 197 providers.Half of the 3,886 plans we rank by price cost $1.998 per 1,000 emails or less. This plan costs less per 1,000 emails than 9% of the 3,886 plans.treg's top-up from $10 is the cheapest paid plan per 1,000 emails: $0.00 on average. treg asks one provider after another until one answers. You pay $68.365 per 1,000 emails when no provider answers.Disify's $9 monthly plan (/email) covers any number of emails. Disify's $9 monthly plan costs less up front than treg's top-up from $10.pingutil, MailTester Ninja and Giggal are the best email verification API providers in the Datacircle benchmark.
Type a number to see the cheapest InboxPolicy plan for that many emails. The table below then sorts the other plans by what each costs.
Plan: Pay-per-call (x402) one of InboxPolicy's 7 plans
Call: POST /v1/batches/verify one of InboxPolicy's 3 calls
API: Email verification API InboxPolicy's only API

About this item

  • Freshness. We don't know how fresh this plan's data is.
  • 1 of the 6 key fields we check. Deliverability.
  • Nothing to buy first. You pay per call for 1 credit, enough for 1 result.
  • One call. You send emails to POST /v1/batches/verify. You can also send strictness and webhook_url. The call returns a job. You fetch the answer once the job is done. Or the provider sends the answer to your webhook.
  • Anyone can get it. Keep data: no limit. Use data: with conditions.

InboxPolicy: email verification API alternatives

InboxPolicy alternatives: every email verification API provider ranked

We list other providers' plans closest to this plan in price per 1,000 emails.

This planInboxPolicy, pay as you go, Pay-per-call (x402), POST /v1/batches/verifyTuski, pay as you goCatch-all Verifier, $25 pack, 2,500 Credits, POST /api/v1/verify/singleClearout, $1,000 pack, 500,000 credits, POST /email_verify/instant, Instant Verify, fullSyncGTM, $50 pack
$ per 1,000 emails$10.00$10.00$10.00$10.00$10.00
Completeness17%50%33%50%33%
Billingpay as you gopay as you gopay firstpay firstpay first
Payper callper call$25$1,000$50
Enough for1 resultas many as you pay for2,500 calls100,000 calls5,000 calls
Freshnessunknownunknownliveliveunknown
Who can get itanyoneanyoneanyonenot new usersanyone aged 16 or over, for lawful business use

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-05.

  1. api.inboxpolicy.com/openapi.json
  2. inboxpolicy.com
  3. inboxpolicy.com/docs
  4. inboxpolicy.com/free-plan
  5. inboxpolicy.com/guides/bulk-email-verification-api
  6. inboxpolicy.com/llms.txt
  7. inboxpolicy.com/pricing
  8. inboxpolicy.com/privacy
  9. inboxpolicy.com/terms

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

  • Address, not in the answer
  • Deliverability
  • Confidence, not in the answer
  • Name, not in the answer
  • Place, not in the answer
  • Company, not in the answer
Price
$ per 1,000 emails$10.00
Perresult
Billingpay as you go
Aggregators
Aggregatorsnone
Charges
Also pays fornothing else
Not found
$ per 1,000$10.00
Catch-all
$ per 1,000$10.00
In their words
Their pitchOne API call answers the question your agent is actually asking: send, review, or avoid — with confidence, evidence, and honest unknowns.
Data
What it checksformat, mail servers, mailbox
Keep datano limit
Use dataVerify addresses you have a lawful basis to process. You are the data controller for lists you submit, we process them solely to produce your results. Prohibited: using the service to enable unsolicited bulk email in violation of applicable law (CAN-SPAM, GDPR, PECR, etc.), verifying harvested or scraped lists for spam, probing our infrastructure, or reselling raw results.
Plan
Payper call
You get1 credit
Enough for1 result
Rate limit
Batch5,000
Speed
Answerby polling or webhook
The call
You sendemails. Optional: strictness, webhook_url
MethodPOST
Path/v1/batches/verify
About the plan
PlanPay-per-call (x402)
Who can get itanyone
The 8 fields the plan's answer can hold

batch ID, status, total items, processed items, valid count, invalid count, unknown count, error count

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