--- title: "MillionVerifier vs ZeroBounce: Email Verification API" description: "MillionVerifier vs ZeroBounce: cost per verification, catch-all billing, free credits, rate limits, bulk API, MCP and compliance. Verified 25 Oct 2026." canonical: https://www.onegtmlab.dev/tool-directory/compare/millionverifier-vs-zerobounce --- # MillionVerifier vs ZeroBounce: Email Verification API [](/) [ Book a call ](/book) Comparison # MillionVerifier vs ZeroBounce: which email verifier fits? MillionVerifier sells credit packs that never expire, from $39 for 10,000 ($0.0039 each) to $8,499 for 50 million, and currently does not bill catch-all or unknown results under a goodwill programme it can withdraw. ZeroBounce costs more per check, from $39 for 2,000 pay as you go or $99 a month for 10,000, but adds AI catch-all scoring, published rate limits, an MCP server and SOC 2 Type 2. Verified 25 Oct 2026 ![](/_astro/millionverifier.CykZd8HV_gOr70.webp)Pick MillionVerifier if - Price per email decides it: $0.0039 at 10,000 and $0.00044 at 1 million - You verify in bursts and want credits that never expire ![](/_astro/zerobounce.DMK7iQt0_Z8DREe.webp)Pick ZeroBounce if - You want to score catch-alls rather than drop them, with AI scoring at 1 extra credit - You need published rate limits, for example 80,000 validations per 10 seconds [![](/_astro/millionverifier.CykZd8HV_1YvpQl.webp)](/tool-directory/verification/millionverifier) MillionVerifier Verification vs [![](/_astro/zerobounce.DMK7iQt0_1qcwoD.webp)](/tool-directory/verification/zerobounce) ZeroBounce Verification, Enrichment [MillionVerifier review →](/tool-directory/verification/millionverifier)[ZeroBounce review →](/tool-directory/verification/zerobounce) 01 ## At a glance ![](/_astro/millionverifier.CykZd8HV_UbjAk.webp)MillionVerifier From **$39**for 10,000 credits, one-off Free plan **Yes**100 free credits at signup per the site Cost per unit **$0.00149 a credit**at 100,000 MCP server **No**No ![](/_astro/zerobounce.DMK7iQt0_Z4rXLd.webp)ZeroBounce From **$39**for 2,000 credits, one-off Free plan **Yes**Freemium, 100 validation credits/mo Cost per unit **$0.00649 a credit**at 100,000 MCP server **Official** 02 ## Where they differ 16 points side by side. Open a value for the full detail. What ![](/_astro/millionverifier.CykZd8HV_ZGoM.webp)[MillionVerifier](/tool-directory/verification/millionverifier) ![](/_astro/zerobounce.DMK7iQt0_Z1tjwkx.webp)[ZeroBounce](/tool-directory/verification/zerobounce) ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierLow-cost email verifierA low-cost email verifier: a real-time GET API and a CSV bulk API. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounceEmail validation API with AI scoringAn email validation API (real-time, batch and bulk file) with AI scoring for catch-alls, an email finder, activity data and deliverability tools such as warmup and inbox placement. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifier$39 for 10,000 credits, one-off$39 for 10,000 credits, a one-off pack. Verified 2026-10-25. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounce$39 for 2,000 credits, one-off$39 for 2,000 credits, a one-off pay-as-you-go pack, or ZeroBounce ONE at $99 a month for 10,000 credits a month ($79 a month billed annually). Verified 2026-10-25. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierPrepaid packs, credits never expirePrepaid packs only. Credits never expire. Promotions add free credits for large or auto top-up purchases. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBouncePacks or ZeroBounce ONE subscriptionPay-as-you-go packs or a ZeroBounce ONE monthly subscription. On ONE, unused credits roll over while you stay subscribed; outside it, expiry rules may apply. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifier$0.00149 a credit at 100,0001 credit per result. $0.0039 a credit at 10,000, $0.00149 at 100,000, $0.00044 at 1 million and $0.00016 at 50 million. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounce$0.00649 a credit at 100,0001 credit per validation. Pay as you go: $0.0195 at 2,000, $0.00649 at 100,000, $0.003199 at 1 million. ZeroBounce ONE is lower at every tier, for example 1 million a month for $2,499 billed monthly. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierGood and bad billed; refunds discretionaryThe site says only good and bad results are billed. Its terms make that a discretionary goodwill programme that can be withdrawn: on bulk files the credit is taken and then returned as a promotional credit. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounceUnknown and duplicates free; catch-alls billedUnknown results and duplicates are free. Catch-alls are billed like other results, and AI scoring (1 extra credit) rates them. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifier100 free credits at signup per the site100 free credits at signup per the homepage, no card; a new account on 25 Oct 2026 received 500. Billing details must be saved before you can verify or open the API key page. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounceFreemium, 100 validation credits/moFreemium: 100 validation credits a month for signups on a business domain. The onboarding survey asks for a phone number. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierKey in the query stringKey in the query string (api on the single API, key on the bulk API). Unlimited keys, each with an on/off switch and an IP allow or deny list. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounceapi\_key in query or form bodyapi\_key in the query string or form body. A master key plus up to 5 keys in the app, with an optional IP whitelist. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierNot publishedNone published, and no rate-limit headers are returned. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounce80,000 per 10 seconds, single validatePublished per endpoint: 80,000 single validations per 10 seconds (100,000 on ONE), batch calls of 100 emails at 30 a minute. Too many bad requests or unknowns trigger temporary blocks. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierCSV bulk API, no webhooksBulk API: upload a CSV, poll file info, download the filtered report. No webhooks. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounceBulk file API with return\_url callbackBulk file API for validation, AI scoring and the finder, with a return\_url callback when a file finishes. Batch validation takes 100 emails per call. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierNoNone documented. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounceYesOfficial local server from npm (@zerobounce/mcp), run with your API key. Tools cover single and batch validation, bulk files, AI scoring, the finder and credits. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierResult, quality, free and role flagsResult (ok, catch\_all, unknown, disposable, invalid, error), quality, and free, role and did-you-mean flags. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounceStatus, sub-status, domain age, SMTP providerStatus and sub-status (valid, invalid, catch-all, unknown, spamtrap, abuse, do\_not\_mail), plus domain age, SMTP provider, MX data and, where available, name, gender and location. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierNo regional endpoints; New ZealandNo regional endpoints are documented. Operated from New Zealand. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounceEU default; api-us and api-eu hostsThe default host processes in the EU; api-us and api-eu hosts keep processing in one region. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierHubSpot, Mailchimp, ActiveCampaign, Zoho CRMEmail and CRM tools such as HubSpot, Mailchimp, ActiveCampaign, Zoho CRM, Reply and Brevo. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounceClay, Zapier, n8n, Make, HubSpot, SalesforceClay, Zapier, n8n, Make, HubSpot, Salesforce, Apollo, Outreach, Mailchimp and Klaviyo, plus API wrappers in 13 languages. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierGDPR and DPA; SOC 2 badge, no reportStates GDPR compliance and publishes a DPA. The footer shows a SOC 2 controls badge, but no SOC 2 report is published. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounceSOC 2 Type 2, ISO 27001, PCI-DSS, HIPAASOC 2 Type 2, ISO 27001, PCI-DSS, HIPAA, GDPR and CCPA, per its security page. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierMoney back over 4% hard bounceMoney back on files uploaded in the web app if more than 4% of OK results hard bounce; API checks are excluded. Files are deleted after 30 days. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounceFiles deleted after 30 daysUploaded files are deleted after 30 days. ![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifierLarge lists at lowest cost per emailCleaning large lists at the lowest cost per email, with credits that never expire. ![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBouncePublished limits, catch-all scoring, certificationsVerifying before every send with published limits, catch-all scoring, regional processing and formal certifications. 03 ## Pricing, plan by plan US dollars as each vendor's page showed them on 25 Oct 2026. One panel per tool; switch each between monthly and annual billing (an annual price is the monthly rate when you pay for the year up front). ![](/_astro/millionverifier.CykZd8HV_1yxc4E.webp) ### MillionVerifier 13 plans · [API review](/tool-directory/verification/millionverifier) ### 10,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $39 ($0.0039 a credit). API includedPlan details Credits never expire. ### 25,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $59 ($0.00236 a credit). API included ### 50,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $89 ($0.00178 a credit). API included ### 100,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $149 ($0.00149 a credit). API included Show all 13 plansShow fewer plans ### 500,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $299 ($0.00059 a credit). API included ### 1,000,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $449 ($0.00044 a credit). API included ### 2,000,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $799. API included ### 3,000,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $1,099. API included ### 4,000,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $1,399. API included ### 5,000,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $1,599 ($0.00031 a credit). API included ### 10,000,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $2,599 ($0.00025 a credit). API included ### 25,000,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $4,999 ($0.00019 a credit). API included ### 50,000,000 credits [Price not verified](https://www.millionverifier.com/) One-off pack, $8,499 ($0.00016 a credit). API includedPlan details Larger volumes by request. ![](/_astro/zerobounce.DMK7iQt0_Zg4Sc.webp) ### ZeroBounce 17 plans · [API review](/tool-directory/verification/zerobounce) ### Freemium $0 Free 100 validation credits a month for business-domain signups, plus small allowances of finder, inbox and blacklist tools. API included ### ZeroBounce ONE 10,000 $99/mo billed monthly $79/mo billed annually 10,000 validation and scoring credits a month, rollover while subscribed. API included ### ZeroBounce ONE 25,000 $199/mo billed monthly $159/mo billed annually 25,000 credits a month. API included ### ZeroBounce ONE 50,000 $379/mo billed monthly $303/mo billed annually 50,000 credits a month. API included Show all 17 plansShow fewer plans ### ZeroBounce ONE 100,000 $449/mo billed monthly $359/mo billed annually 100,000 credits a month. API included ### ZeroBounce ONE 250,000 $999/mo billed monthly $799/mo billed annually 250,000 credits a month. API included ### ZeroBounce ONE 500,000 $1,699/mo billed monthly $1,359/mo billed annually 500,000 credits a month. API included ### ZeroBounce ONE 1,000,000 $2,499/mo billed monthly $1,999/mo billed annually 1,000,000 credits a month. API includedPlan details Above this, contact sales. ### Pay-As-You-Go 2,000 Usage-based One-off, $39 ($0.0195 a credit). API included ### Pay-As-You-Go 5,000 Usage-based One-off, $69 ($0.0138 a credit). API included ### Pay-As-You-Go 10,000 Usage-based One-off, $129 ($0.0129 a credit). API included ### Pay-As-You-Go 25,000 Usage-based One-off, $274 ($0.01096 a credit). API included ### Pay-As-You-Go 50,000 Usage-based One-off, $499 ($0.00998 a credit). API included ### Pay-As-You-Go 100,000 Usage-based One-off, $649 ($0.00649 a credit). API included ### Pay-As-You-Go 250,000 Usage-based One-off, $1,299 ($0.005196 a credit). API included ### Pay-As-You-Go 500,000 Usage-based One-off, $2,199 ($0.004398 a credit). API included ### Pay-As-You-Go 1,000,000 Usage-based One-off, $3,199 ($0.003199 a credit). API included 04 ## Which one to pick ### ![](/_astro/millionverifier.CykZd8HV_Z2jBMdn.webp)Choose MillionVerifier if - Price per email decides it: $0.0039 at 10,000 and $0.00044 at 1 million. - You verify in bursts and want credits that never expire. - Your lists hold many catch-alls, and today those results are not billed. - You only need a simple GET call or a CSV upload. ### ![](/_astro/zerobounce.DMK7iQt0_Z2kV1su.webp)Choose ZeroBounce if - You want to score catch-alls rather than drop them, with AI scoring at 1 extra credit. - You need published rate limits, for example 80,000 validations per 10 seconds. - You need EU-only or US-only processing. - Procurement asks for SOC 2 Type 2 or ISO 27001. - You want an MCP server so an AI agent can validate addresses. **If neither fits:** A verifier only tells you whether a mailbox accepts mail, not whether it belongs to the person you want. Find and match the right person first, then verify. [How to verify email addresses before you send →](/tool-directory/how-to/verify-emails) ## Want us to build it for you? Choosing between MillionVerifier and ZeroBounce, or moving from one to the other? Tell us your setup. We will show you how we would run it, and what we would check first. [ Book a call ](/book)[ See case studies ](/case-studies) 05 ## Questions people ask Which is cheaper per email? MillionVerifier, at every listed volume. 10,000 credits cost $39 there ($0.0039 each), against $129 pay as you go at ZeroBounce ($0.0129) or $99 a month on ZeroBounce ONE. At 1 million, MillionVerifier is $449 one-off and ZeroBounce is $3,199 pay as you go. Verified 2026-10-25. Are catch-all emails charged? MillionVerifier currently does not bill catch-all or unknown results, but its terms call this a goodwill programme it can withdraw. ZeroBounce does not bill unknowns and duplicates; catch-alls cost 1 credit, and AI scoring can rate them for 1 more. Do credits expire? MillionVerifier credits never expire. ZeroBounce credits roll over while a ZeroBounce ONE subscription is active; outside it, expiry rules may apply depending on the account and purchase date. Can I try them for free? MillionVerifier's homepage promises 100 free credits at signup with no card (our new account received 500), once billing details are saved. ZeroBounce Freemium gives 100 validation credits a month to signups on a business domain. Does either have an MCP server? ZeroBounce publishes an official MCP server on npm (@zerobounce/mcp) that runs locally with your API key. MillionVerifier documents none. ## Related [![](/_astro/millionverifier.CykZd8HV_Z1yyzSe.webp)MillionVerifier API review](/tool-directory/verification/millionverifier)[![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)ZeroBounce API review](/tool-directory/verification/zerobounce)[![](/_astro/leadmagic.VYwz4sDG.svg)![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)LeadMagic vs ZeroBounce](/tool-directory/compare/leadmagic-vs-zerobounce)[![](/_astro/neverbounce.BMIMci8P_1Sa9px.webp)![](/_astro/zerobounce.DMK7iQt0_27Oa23.webp)NeverBounce vs ZeroBounce](/tool-directory/compare/neverbounce-vs-zerobounce) Read from [millionverifier.com](https://www.millionverifier.com/), [zerobounce.net/pricing](https://www.zerobounce.net/pricing) and each tool's API docs. Verified 25 Oct 2026. [](/) © 2026 ONEGTMLAB Private Limited. All rights reserved. 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