SimpleVerifier vs Abstract API (2026)
Abstract API costs $19 a month for 5,000 verifications, or $204 for a year. SimpleVerifier is $9 a month for 2,500 emails a month and $39 a month on Pro, which is never cut off (100,000 a month at full speed). Pick Abstract API if you already use Abstract's other APIs, such as IP geolocation or phone validation, and want one key and one bill; pick SimpleVerifier if you verify large lists or re-check them often.
Abstract API prices read from abstractapi.com, checked . No accuracy benchmark was run.
Is SimpleVerifier a good alternative to Abstract API?
For large or repeated lists, often yes: SimpleVerifier is a flat monthly plan, while Abstract API meters usage. Every address gets a real SMTP mailbox check. Monthly plans: $9 for 2,500 emails, or Pro at $39 with 100,000 a month at full speed, never cut off. Abstract API's prices on this page were read October 12, 2026.
- What it is
- Email verification with a real SMTP mailbox check: each address comes back valid, risky or invalid with a reason. Includes an email finder on Pro and up.
- Price per check
- Starter $9/mo for 2,500 ($3.60 per 1,000); Pro $39/mo, 100,000 a month at full speed ($0.39 per 1,000 when used), then slower, never cut off. Business $99/mo with 300,000 at full speed; Agency $249/mo with 750,000 at full speed.
- One-time packs
- 10,000 for $15 ($1.50 per 1,000); 25,000 for $29 ($1.16 per 1,000); 50,000 for $49 ($0.98 per 1,000); 100,000 for $79 ($0.79 per 1,000); 250,000 for $169 ($0.68 per 1,000). Credits never expire, run at standard speed, CSV verification only (no API or finder).
- Free checks
- First 100 email checks free with a Google sign-in, no card, once per account. Single checks on the free email checker need no account.
- Billing
- Monthly subscription, cancel anytime (yearly billing optional). One-time packs are listed above. Starter allowances reset monthly and do not roll over.
- Speed today
- Capacity is shared by every customer: plan on about 13,000 mailbox checks a day in the standard lane (more when the queue is quiet). Bad syntax, dead domains and disposable addresses return at once; a list of 100,000 takes days, not hours, and each job shows its estimated finish time.
- Catch-all handling
- Catch-all (accept-all) addresses stay risky, never valid, and are graded higher, medium or lower likelihood with the reasons. Anything a mail server does not confirm is risky.
- API and MCP
- REST API on Pro, Business and Agency (Pro includes 10,000 calls a month, then $1.50 per 1,000). Remote MCP server with 6 tools for Claude, ChatGPT, Cursor and VS Code. No API on Starter.
- Integrations
- Connects to Instantly, Smartlead, HubSpot and Mailchimp by API key: verifies a campaign or list and tags each contact with its result. CSV in and out for any other tool.
- Phone
- Free phone format checks (country, type range). Live carrier and line-type lookups come with Pro + Phone at $49.99/mo (5,000 a month). It never says a number is in service.
- Privacy and GDPR
- Data processing agreement countersigned on request (/dpa). Results files deleted 7 days after a list is submitted; confirmed results cached by address for 14 days. Lists are not used for marketing, sold or shared. Verification runs on a US server. No GDPR certification is claimed.
- What it does not do
- No sending, warmup or inbox placement tests. No published accuracy benchmark against other verifiers. Catch-all domains, Yahoo and AOL cannot be confirmed, and Outlook.com and Hotmail mailboxes are not probed while Microsoft refuses checks from our server's network: all of these come back risky, never valid.
SimpleVerifier facts from our pricing page and product. Last updated .
| Abstract API | SimpleVerifier | |
|---|---|---|
| Published price | $19/mo | $9/mo, Pro $39/mo |
| How usage is metered | Monthly request allowance | Monthly plans; Pro is never cut off (100,000 a month at full speed, then a slower lane) |
| Free to start | See their pricing page | First 100 checks, one time, Google sign-in, no card |
| Re-checking a list | the plan is a request quota, so a bulk clean and your live sign-up checks compete for the same allowance. | Confirmed results are cached 14 days |
| One pass over 1,000 | $19.00One month of the 5,000/mo plan | $9.00one month of Starter, 2,500 emails a month |
| One pass over 10,000 | $38.002 months of a 5,000/mo allowance | $15.00a one-time pack of 10,000 email checks that never expires |
| One pass over 50,000 | $99.00One month of the 50,000/mo plan | $39.00one month of Pro |
| One pass over 100,000 | $198.002 months of a 50,000/mo allowance | $39.00one month of Pro |
| One pass over 1,000,000 | $1393.007 months of a 150,000/mo allowance | $39.00one month of Pro: the first 100,000 checks a month at full speed, then slower, never cut off |
Each cost is for one pass, on the cheapest published route. Where a vendor sells both packs and a subscription, the cheaper is shown; a figure of “Not published” means the plan for that size was not on the page we read. See the cost calculator for your own pattern.
Cost at a steady monthly volume
The same volume every month, on each side’s cheapest route that covers it within the month.
| Per month | Abstract API | SimpleVerifier |
|---|---|---|
| 10,000 | $39.00$39/mo plan with 15,000 a month | $39.00Pro plan, never cut off: the first 100,000 emails a month run at full speed |
| 50,000 | $99.00$99/mo plan with 50,000 a month | $39.00Pro plan, never cut off: the first 100,000 emails a month run at full speed |
| 100,000 | $199.00$199/mo plan with 150,000 a month | $39.00Pro plan, never cut off: the first 100,000 emails a month run at full speed |
| 1,000,000 | Not publishedNo published plan covers this volume | $249.00Agency plan, never cut off: the first 750,000 emails a month run at full speed, the rest in a slower lane |
Common questions
- Is SimpleVerifier cheaper than Abstract API?
- It depends on volume and how often you re-check. Abstract API costs $19 a month for 5,000 verifications, or $204 for a year (read from abstractapi.com on October 12, 2026). SimpleVerifier is $9 a month for 2,500 emails a month, and Pro is $39 a month with 100,000 a month at full speed. The cost table on this page prices the same list sizes on both.
- When should I choose Abstract API instead of SimpleVerifier?
- Choose Abstract API if you already use Abstract's other APIs, such as IP geolocation or phone validation, and want one key and one bill.
- When should I choose SimpleVerifier instead of Abstract API?
- Choose SimpleVerifier if you verify large lists or re-check lists often and prefer one flat monthly price.
- Is one more accurate than the other?
- We have not benchmarked Abstract API against SimpleVerifier, so this page compares published prices and features only and makes no accuracy claim. Run the same sample, including addresses you know are dead, through both and compare. Anything SimpleVerifier cannot confirm is returned as risky, never valid.
- Can I test SimpleVerifier before paying?
- Yes. Sign in with Google and the first 100 email checks are free, no card.
Test both on your own list
The first 100 checks are free with a Google sign-in, no card. Plans then start at $9 a month. Cancel anytime.