Free start
$0
Free
100 free credits on signup.
Both start at $8 for 1,000 verifications. Bouncer's credits never expire, it does not charge for duplicates or unknown results, it publishes its rate limits and has an official MCP server; 100 free credits to start. NeverBounce's pay-as-you-go credits expire after 12 months; it adds a $49 a month Growth plan with CRM auto-sync, SDKs in seven languages and 10 free credits at signup.
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Bouncer
NeverBounce
16 points side by side. Open a value for the full detail.
| What | Bouncer | NeverBounce |
|---|---|---|
| EU-based email verification APIAn EU-based email verification API with real-time, async batch and synchronous batch modes, domain checks and a toxicity score. | Email verification API from ZoomInfoAn email verification API from ZoomInfo with single checks, async bulk jobs, job callbacks and a JavaScript form widget. | |
| 100 free credits on signup100 free credits on signup. Sandbox test addresses are free. | 10 free credits on signup10 free credits on signup with a business email, plus a free list analysis that estimates the bounce rate. | |
| $8 for 1,000 credits, one-off$8 for 1,000 credits ($0.008 each), one-off. Minimum purchase 1,000 credits. USD, read 25 Oct 2026. | $8 for 1,000 credits, one-off$8 for 1,000 credits ($0.008 each), one-off. USD, read 25 Oct 2026. | |
| $0.002 each at 1,000,00010,000 for $60, 100,000 for $400, 1,000,000 for $2,000 ($0.002 each). | $0.002 each at 2,000,00010,000 for $50, 100,000 for $400, 1,000,000 for $2,500, 2,000,000 for $4,000 ($0.002 each). | |
| Never expireCredits never expire. | Expire after 12 monthsPay-as-you-go credits expire 12 months after purchase. | |
| Duplicates and unknown resultsDuplicate addresses in a list and 'unknown' results. A stalled batch can be finished to get credits back for unverified emails. | Duplicates and bad-syntax addressesDuplicates and bad-syntax addresses. Only billable rows are charged in bulk jobs. | |
| Monthly auto-refill subscriptionA monthly subscription with auto-refill at volume prices, plus a separate Deliverability Kit from $25 a month. | Growth $49/mo for 10,000 emailsGrowth: $49 a month for up to 10,000 emails, with credit limits reset monthly, CRM auto-sync and only new unique emails billed. Enterprise is custom, typically 250,000+ emails a month. | |
| x-api-key header or HTTP BasicKey in the x-api-key header, or HTTP Basic with the key as password. Up to 5 keys, generated in one click. | key parameter in query or bodyKey as a 'key' parameter in the query string or POST body. Created through a Custom Integration app in the dashboard. | |
| Real-time 1,000/min, publishedPublished: real-time verify 1,000 a minute, batch creation 60 a minute, synchronous batch 100 requests a minute of up to 10,000 emails each. Batch throughput 100,000 to 200,000 emails an hour by default. | No request rate publishedNo request rate published. Bulk: 10 concurrent jobs and 50 job runs a day; no more than 10 jobs per 100,000 items an hour, or the account can be locked. | |
| Async batches, 100,000 to 500,000 maxAsync batches (the API docs say up to 100,000 emails a batch, the API product page says up to 500,000), a synchronous batch mode, and toxicity list jobs. Batches run one after another per account. | Async jobs, under 1 million per jobAsync jobs: create, parse, start, then fetch results. Lists under 1 million go in one job. Single checks are for point of entry only, not for cleaning an existing list. | |
| Optional completion callback URLBatch create takes an optional callback URL for completion. | Callback URL with status changesJobs take a callback URL and headers; NeverBounce posts status changes. A single check can also act as an inbound webhook for CRMs. | |
YesOfficial remote server at https://api.usebouncer.com/mcp with OAuth 2.1. 9 tools for single, batch, domain and toxicity checks and credits. The connector is free; checks use your credits. | NoNone found in its docs, pricing or integrations pages. | |
| Status, reason, score, toxicity scoreStatus (deliverable, risky, undeliverable, unknown) with a reason, accept-all, disposable, free, role, provider, a score and a toxicity score. | Result, flags, suggested correctionResult (valid, invalid, disposable, catchall, unknown), flags, a suggested correction and optional address info. A hybrid mode blends live checks with historical data. | |
| Make, HubSpot, lemlist, Woodpecker, PipedriveMake, HubSpot, lemlist, Woodpecker, QuickMail, Pipedrive, Klaviyo, Mailchimp and others. Its integration guidelines offer a Java client library on GitHub; no other SDKs are listed. | Zapier, n8n, Make, HubSpot, official SDKsZapier, n8n, Make, HubSpot, Salesforce, Mailchimp, Clay and more. Official SDKs for Node.js, Python, PHP, Java,.NET, Ruby and Go. | |
| GDPR DPA, Polish companyPublishes a GDPR data processing agreement. Operated by a Polish company under Polish law. | No compliance statement foundNo compliance statement on the pages read; NeverBounce is part of ZoomInfo. | |
| Occasional buyers, MCP, high-volume batchesTeams that buy credits occasionally and want them to last, AI-agent workflows through MCP, and high-volume batches with published limits. | Monthly plan with CRM syncTeams that want a monthly plan with CRM sync, a free pre-check of a list's bounce rate, or an official SDK in their language. |
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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).
$0
Free
100 free credits on signup.
Usage-based
One-off pack: $8 ($0.008 a credit).
Credits never expire.
Usage-based
One-off pack: $60 ($0.006 a credit).
Usage-based
One-off pack: $400 ($0.004 a credit).
Other packs: 5,000 $35, 50,000 $250, 250,000 $750, 500,000 $1,250.
Usage-based
One-off pack: $2,000 ($0.002 a credit).
Above 1,000,000: contact sales.
Monthly verification credits at volume prices with auto-refill; prices shown after choosing a volume.
$0
Free
10 free credits with a business email, and a free list analysis.
Usage-based
One-off pack: $8 ($0.008 a credit).
Credits expire 12 months after purchase.
Usage-based
One-off pack: $50 ($0.005 a credit).
Usage-based
One-off pack: $400 ($0.004 a credit).
Other packs: 5,000 $40, 25,000 $125, 50,000 $250, 250,000 $750, 500,000 $1,500.
Usage-based
One-off pack: $2,500 ($0.0025 a credit).
2,000,000 credits: $4,000 ($0.002 a credit).
$49/mo
billed monthly
$49 a month for up to 10,000 emails a month, credit limits reset monthly, CRM auto-sync, only new unique emails billed.
Custom quote
Custom price, typically 250,000+ emails a month.
If neither fits: Our verify-emails guide covers more verifiers and the other ways to clean a list, including verifying while you find emails.
How to verify email addresses before you sendChoosing between Bouncer and NeverBounce, 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.
At 1,000 credits both cost $8. At 10,000, NeverBounce is $50 and Bouncer $60. At 1,000,000, Bouncer is $2,000 and NeverBounce $2,500. Bouncer's credits never expire; NeverBounce's pay-as-you-go credits expire after 12 months.
Bouncer says it never charges for duplicates in a list or for 'unknown' results. NeverBounce says duplicates and bad-syntax addresses are free; its pages do not say unknowns are free.
On NeverBounce, no: looping single checks over an existing list is against its usage guidelines and can lock the account; use bulk jobs. Bouncer recommends batches for lists, because real-time checks on slow mail servers return more unknown results.
Bouncer has an official remote MCP server at https://api.usebouncer.com/mcp with OAuth sign-in and 9 tools. No NeverBounce MCP server appears in its docs, pricing or integrations pages.
Bouncer gives 100 free credits on signup and free sandbox addresses for testing. NeverBounce gives 10 free credits with a business email, plus a free list analysis.
Read from usebouncer.com/pricing, neverbounce.com/pricing and each tool's API docs. Verified 25 Oct 2026.