Email & notification APIs
Bytecheck
Affordable bulk email verification with live mailbox checks on your own probe fleet
- 0community votes
- 1DR by Ahrefs no change since last check
Ahrefs Domain Rating listed 11 Nov 2026, relisted 9 Nov 2026.
API-first email validation platform offering affordable bulk email verification, single checks, and email finding at cost-first pricing.
What it is
Bytecheck: the homepage
Bytecheck is an email validation platform built and operated by Bytemine. It provides bulk email verification, single address checks, and an email finder tool through a simple interface and REST API. The service uses its own probe fleet to run live mailbox checks directly against destination mail servers, rather than reselling third-party verdicts. Credits do not expire and are charged per check (1 credit per email validation, 5 credits per email found). The platform is in open beta with daily usage limits that grow automatically during beta.
Listed capabilities
- Single email checks with typo detection and disposable provider identification
- Bulk email verification with CSV upload and duplicate removal
- Email finder using name, domain, and candidate patterns
- REST API with structured JSON results
- Multiple workspaces per account with separate credit balances
- Multiple named API keys per workspace
- Detailed validation flags including syntax, MX, SMTP, catch-all, and disposable checks
- Non-expiring credits with no monthly spending cap
- Free public email checker tool
Pricing
Pricing model: Freemium
Starter: 5,000 credits for $9 USD; Basic: 10,000 credits for $14 USD; Growth: 50,000 credits for $34 USD; Pro: 100,000 credits for $62 USD; Scale: 500,000 credits for $135 USD; Enterprise: 1,000,000 credits for $225 USD. Free accounts receive 100 signup credits and eligible unpaid first workspaces c
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Bytecheck metrics
| Metric | Value |
|---|---|
| Domain Rating | 1 no change since last check |
| Trust Flow | 4 no change since last check |
| Citation Flow | 15 no change since last check |
| Referring domains | 1 no change since last check |
| External backlinks | 2 no change since last check |
Ahrefs Domain Rating listed 11 Nov 2026, relisted 9 Nov 2026. Listed under topic: Computers/Systems (4). Majestic listed 9 Nov 2026, relisted 9 Nov 2026. Link data listed by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Bytecheck domain listing data
Show the listing data
| Domain age | 14 days |
|---|---|
| Registered | |
| Expires | |
| Registrar | Name.com, Inc. |
| DNSSEC | Not signed |
Bytecheck launch receipt entry
| Measure | At launch, then latest |
|---|---|
| Domain Rating (Ahrefs) | 1 to 1 no change since launch 9 Nov 2026, then 11 Nov 2026 |
| Trust Flow (Majestic) | 4 first measured 9 Nov 2026 |
| Referring domains (Majestic) | 1 first measured 9 Nov 2026 |
Day 2 since launch. Next receipt: day 30, 9 Dec 2026. We show what changed, not what caused it: many things affect these numbers. Nothing here is estimated.
Before you launch
The playbook on SaaS Directory List lists what to prepare, what to post on launch day and where else to list your product.
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Quick answers
How cheap is email verification on Bytecheck?
Bytecheck charges 5,000 credits for $9, 100,000 for $62, and 1 million for $225. Prices are compared first-party only at the same volume; no universal cheapest claim is made.
Can I try Bytecheck before paying?
Yes, Bytecheck is in open beta. New accounts receive 100 free signup credits, and eligible unpaid first workspaces can claim an additional 100 credits each calendar month. The public checker is also free.
What does a credit cost and what does it buy?
One email check costs 1 credit. Five credits are needed to find an email. Credits never expire, and bulk uploads remove duplicates before charging.
How large can a bulk email upload be?
Bulk upload limits depend on your plan: Free allows 1,000 rows, Growth allows 50,000, and Enterprise allows 1,000,000 rows per job. You can upload a CSV or paste a list.
Does Bytecheck offer an API?
Yes. You can create a workspace API key, send JSON requests, and receive structured results. Email, bulk jobs, and account endpoints are documented in the API reference.
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