BillionVerify
Verification with MCP.
From $20 Free tier MCP server API
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Bottom line
SMTP email verification with a free monthly allotment, hosted MCP, and REST API. Paid credits start at $20 for 20,000 one-time.
Stands out for: Hosted MCP at mcp.billionverify.com plus bulk and real-time API on every paid path.
Watch out for: New monthly subscriptions prepay three months at checkout. Unused metered credits do not roll like a cash balance. Catch-all still needs human judgment.
Overview
BillionVerify is an email verification service for single lookups and bulk list cleaning. It runs SMTP-level checks plus disposable, role, spam-trap, and catch-all detection. The Free plan includes 600 credits a month and 20 more on each login, with no card. Paid paths are one-time credit packs, monthly plans, and yearly plans. A hosted MCP server sits at mcp.billionverify.com.
Teams pick it when they want cheap credits and an API without an enterprise contract. One-time packs start at $20 for 20,000 credits ($0.001 each). The smallest yearly plan is $8/mo ($96 billed yearly) for 20,000 credits a month. Monthly and yearly plans scale to 1 million credits. White-label is sales-quoted.
Who it's for
Best for
- 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
Not ideal for
- Buyers who refuse a three-month monthly prepay
- Anyone needing phone or LinkedIn enrichment
Key features
MCP. Agent connector so an LLM client can query product data.
Bulk. Batch pulls when one-at-a-time lookup is too slow.
Screenshots
Images: BillionVerify's AppSumo listing. Select an image to see it full size.
MCP server
https://mcp.billionverify.com/mcp
First-party MCP at mcp.billionverify.com. Official vendor-hosted server. Connect Claude or ChatGPT with your own login.
Setup steps and live status MCP Directory Check your stack in the MCP readiness checker
Pricing
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. Vendors change prices without notice.
Is BillionVerify expensive?
BillionVerify starts at $20. We list 32 verification tools in total. 12 have a free tier, and those with a public price typically start around $35 a month.
- 1 quote-based
- 12 free tier
- 31 public price
Worked out automatically from every verification listing, so it updates as the directory changes.
Pros and cons
Pros
- 600 free credits a month, plus daily login bonus
- Hosted MCP endpoint and REST API
- One-time packs from $20 for 20k credits
Cons
- Monthly plans prepay the first three months
- No phone or company-enrichment product
- Unused metered credits do not roll over
What's new at BillionVerify
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How BillionVerify compares
See all BillionVerify alternatives, with what each one does differently and a head to head for every pairing.
| Tool | Free tier | From | MCP | API | Compare |
|---|---|---|---|---|---|
| | ✓ | $20 | ✓ | ✓ | |
| | ✓ | $39/2,000 credits | ✓ | ✓ | Compare |
| | – | $8/1,000 credits | – | ✓ | Compare |
| | – | $39/10k credits | – | ✓ | Compare |
| | ✓ | $5/500 verifications | – | ✓ | Compare |
$39/2,000 credits Free tier MCP API
Better-known verifier if you want inbox placement tools on top of SMTP checks.
$8/1,000 credits API
List cleaning inside Mailchimp-style stacks if you already buy from that family.
$39/10k credits API
Pay-per-credit cleaning if you want another cheap bulk SMTP checker.
$5/500 verifications Free tier API
API-first verification with a quality score if you need that extra signal.
Your next step
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