Datacircle

BillionVerify, POST /verify/single: email validation API pricing, 19 plans

67% complete: 4 of the 6 key fieldsSee which

$0.00per 1,000 emails
Plan: Free Plan one of BillionVerify's 19 plans
Call: POST /verify/single one of BillionVerify's 3 calls

About this item

  • Live. The call checks the email when you make it.
  • 4 of the 6 key fields. Address, Its check, Confidence, Company.
  • Nothing to pay. You get 20 credits a day, enough for 20 calls. Credits never expire.
  • One call. You send email to POST /verify/single. Optional: check_smtp, force_refresh, include_domain_reputation. The call returns whether the address takes mail.
  • Who can get it: with conditions. Keep data: no limit. Use data: with conditions.

Compare with similar plans

Other providers' plans with the closest prices per 1,000. Like this plan, each is live.

This planBillionVerify, free, Plan, POST /verify/singleBouncer, free, 100 free credits, POST /v1.1/email/verify/batchBounceCheck, free, Free, POST /verification/bulkBounceless, free, 100 credits once, POST /v1/requests, Create a batch (emails)Bouncify, free
$ per 1,000$0.00$0.00$0.00$0.00$0.00
Completeness67%67%50%50%50%
Billingfreefreefreefreefree
Pay$0$0$0$0$0
Enough for20 calls a day100 results, once50 results a month100 results, once100 calls, once
Freshnesslivelivelivelivelive
Who can get itanyone at least 18 years old and legally able to enter into a contract, for their internal business purposes onlyanyone 18 or over with a work email, a private one (Gmail, Hotmail) only after writing to Bouncer firstanyone, for their own internal business purposesbusiness customers outside the European Economic Area and the UK, with a public email addressanyone

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-20.

  1. api.billionverify.com/openapi.yaml
  2. billionverify.com/docs/api-reference.md
  3. billionverify.com/email-verification-api.md
  4. billionverify.com/help.md
  5. billionverify.com/help/disposable-emails-are-free.md
  6. billionverify.com/help/do-credits-expire.md
  7. billionverify.com/help/no-charge-for-recheck-within-24h.md
  8. billionverify.com/help/what-does-catch-all-mean.md
  9. billionverify.com/help/which-results-are-charged.md
  10. billionverify.com/llms-full.txt
  11. billionverify.com/llms.txt
  12. billionverify.com/pricing
  13. billionverify.com/pricing.md
  14. billionverify.com/terms

Product details

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

  • Address
  • Its check
  • Confidence
  • Name, not in the answer
  • Place, not in the answer
  • Company
Price
$ per 1,000$0.00
Billingfree
Aggregators
Aggregatorsnone
Charges
Repeat free24 hours
Percall
Also pays forfrom the same budget: Batch Email Verification · File Upload Verification
Not found
$ per 1,000$0.00
Catch-all
$ per 1,000$0.00
In their words
Their pitchReal-time email verification API over HTTP with full SMTP mailbox checks — the accurate verification API for deliverability, not format-only validation.
Data
Freshnesslive
Keep datano limit
Use dataYou may not use the Service to: Violate anti-spam, privacy, consumer protection, or data protection laws. Submit data you do not have the lawful right to process. Abuse promotional offers, bypass rate limits, probe our systems, or attempt unauthorized access. Reverse engineer, copy, resell, sublicense, or build a competing service using the Service except as expressly permitted by us in writing. [...] Subject to these Terms, we grant you a limited, revocable, non-exclusive, non-transferable right to use the Service for your internal business purposes.
Plan
Pay$0
You get20 credits a day
Enough for20 calls a day
Expiresnever
Rate limit
Per second100
Batch1
Speed
Answerin the call
The call
You sendemail. Optional: check_smtp, force_refresh, include_domain_reputation
MethodPOST
Path/verify/single
About the plan
PlanFree Plan
Who can get itanyone at least 18 years old and legally able to enter into a contract, for their internal business purposes only
The 29 fields the plan's answer can hold

email, status, score, deliverable, disposable, catch-all, role address, free email, domain, domain age, MX records, MX IP, MX ASN, MX AS organization, domain reputation, SMTP checked, SMTP result, catch-all evidence, reason, domain suggestion, alias of, risk reasons, SMTP response, response time, credits used, verification mode, retryable, SMTPUTF8, retry after seconds