Head to head

BillionVerify vs ZeroBounce

Same facts, side by side: starting price, free tier, MCP, API and what each one is actually built for.

BillionVerify

$20 Free tier

SMTP email verification with a free monthly allotment, hosted MCP, and REST API. Paid credits start at $20 for 20,000 one-time.

Where BillionVerify fits

Teams cleaning lists before cold email
Apps that need a real-time verification API
Buyers who want a hosted MCP for ChatGPT or Claude
High-volume jobs that can buy annual credit packs

ZeroBounce

$39/2,000 credits Free tier

Email validation and scoring. Free 100 credits; ZeroBounce ONE starts at $99/mo for 10,000 validations.

Where ZeroBounce fits

Recruiting and sales teams cleaning lists before send
Ops that want validation as an API
Desks that need scoring, not only deliverable/undeliverable
Buyers who want a no-commitment free 100 credits

At a glance

Detail	BillionVerify	ZeroBounce
Starting price	$20	$39/2,000 credits
Free tier	✓Yes	✓Yes
MCP server	✓Yes	✓Yes
Public API	✓Yes	✓Yes
Listed under	Verification	Verification
Capterra	Not enough reviews	4.8 from 591 reviews

Where they pull apart

BillionVerify

Stands out: Hosted MCP at mcp.billionverify.com plus bulk and real-time API on every paid path.

Watch out: New monthly subscriptions prepay three months at checkout. Unused metered credits do not roll like a cash balance. Catch-all still needs human judgment.

Not the right fit for

Buyers who refuse a three-month monthly prepay
Anyone needing phone or LinkedIn enrichment

ZeroBounce

Stands out: Validation plus quality scoring on one meter, with a real free 100-credit allowance and a public $99/month subscription.

Watch out: Pay-as-you-go starts at $39 for 2,000 validations if you do not want a subscription. Heavy lists will burn the 10,000-credit ONE cap.

Not the right fit for

Teams that needed a finder, not a verifier
High-volume senders who will outgrow 10k/month immediately

Pros and cons

BillionVerify

600 free credits a month, plus daily login bonus
Hosted MCP endpoint and REST API
One-time packs from $20 for 20k credits

Monthly plans prepay the first three months
No phone or company-enrichment product
Unused metered credits do not roll over

ZeroBounce

Public $99/mo ONE plan for 10k validations
100 free credits, no trial needed
API plus MCP

ONE's 10k cap is easy to blow on a big agency list
Does not find emails, only validates them
Pay-as-you-go $39 pack is easy to miss if you only look at $99

What each one costs

BillionVerify

$20

Free plan with 600 credits a month plus 20 bonus credits per login day. One-time packs start at $20 for 20,000 credits; yearly plans start at $8/mo ($96 billed yearly). New monthly subscriptions prepay the first three months. Confirm current terms on the vendor site.

Checked 18 Sep 2026

ZeroBounce

$39/2,000 credits

Business domain sign-ups get 100 free validations a month. Pay as you go starts at $39 for 2,000 email validations, the minimum purchase. The ZeroBounce ONE subscription is $99 per month, and unused credits roll over. Confirm current terms on the vendor site.

Checked 20 Sep 2026

Common questions

Is BillionVerify cheaper than ZeroBounce?

BillionVerify starts lower, at $20 against $39/2,000 credits for ZeroBounce. That is the entry plan on each side, so the real number depends on seats and the tier you land on.

Can you try BillionVerify or ZeroBounce for free?

BillionVerify and ZeroBounce carry a free tier on our listing.

Does BillionVerify or ZeroBounce have an MCP server?

BillionVerify and ZeroBounce ship a first party MCP server, so an AI assistant can work the product directly.

Not the pair you wanted?

All BillionVerify alternatives All ZeroBounce alternatives Every Verification tool

Editorial listings, never paid rankings. Prices checked 18 Sep 2026. Confirm current terms on the vendor site. Spot an error?