billionverify.com valid

BillionVerify

BillionVerify checks whether email addresses can receive mail, one at a time, as a whole list or through a REST API, without sending an email. It also finds work email addresses and offers free email DNS and deliverability tools.

For agents: BillionVerify: checks email deliverability one at a time, in bulk or via REST API without sending mail; also finds work emails and offers free DNS tools.

email verificationbulk email checkersmtp validationemail verification apiemail deliverability

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T18:28:06.551Z. Cached copy · Source on billionverify.com

# BillionVerify

> BillionVerify checks whether email addresses can receive mail, one at a time, as a whole list or through a REST API, without sending an email. It also finds work email addresses and offers free email DNS and deliverability tools.

- **Type**: Web application (SaaS) and REST API
- **Category**: Email verification, email list cleaning, email finder and email deliverability tools
- **Languages**: English and 15 more: Simplified Chinese, Traditional Chinese, Spanish, Japanese, French, German, Italian, Polish, Hindi, Malay, Portuguese, Indonesian, Russian, Korean, Dutch
- **Free plan**: 20 credits every day you log in, up to 600 credits a month; no credit card required
- **Credit packs (one-time)**: Starter $20 (20,000 credits); Popular $45 (50,000 credits); Professional $80 (100,000 credits); Business $150 (200,000 credits); Enterprise $200 (500,000 credits); Ultimate $350 (1,000,000 credits)
- **Subscriptions**: Starter $16/month (20,000 credits) or $96/year (240,000 credits); Popular $36/month (50,000 credits) or $216/year (600,000 credits); Professional $64/month (100,000 credits) or $384/year (1,200,000 credits); Business $120/month (200,000 credits) or $720/year (2,400,000 credits); Enterprise $160/month (500,000 credits) or $960/year (6,000,000 credits); Ultimate $280/month (1,000,000 credits) or $1,680/year (12,000,000 credits)
- **Cost per check**: 1 credit per email with a definite result; `unknown`, `disposable` and badly formatted addresses are free, and so is a repeat check of the same address within 24 hours
- **Credits**: never expire
- **API**: REST at https://api.billionverify.com/v1, plus a hosted MCP server at https://mcp.billionverify.com/mcp
- **Last updated**: 2026-10-21

Every page has a Markdown version: add .md to the page URL (the home page is /index.md), or request the page URL with an `Accept: text/markdown` header.

Other languages use a prefix with the same path (for example /zh-hans/pricing); each page lists its language versions in hreflang. Language home pages: [zh-hans](https://billionverify.com/zh-hans/index.md), [zh-hant](https://billionverify.com/zh-hant/index.md), [es](https://billionverify.com/es/index.md), [ja](https://billionverify.com/ja/index.md), [fr](https://billionverify.com/fr/index.md), [de](https://billionverify.com/de/index.md), [it](https://billionverify.com/it/index.md), [pl](https://billionverify.com/pl/index.md), [hi](https://billionverify.com/hi/index.md), [ms](https://billionverify.com/ms/index.md), [pt](https://billionverify.com/pt/index.md), [id](https://billionverify.com/id/index.md), [ru](https://billionverify.com/ru/index.md), [ko](https://billionverify.com/ko/index.md), [nl](https://billionverify.com/nl/index.md).

- [Email Verification Tool & Bulk Email Checker | BillionVerify](https://billionverify.com/index.md): The email verification tool built for scale. Real-time SMTP checks, bulk list cleaning, and API with 99.9% accuracy. 20 free credits a day, up to 600 a month.
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Other listed sites in AI and machine learning. See the whole category →

Machine-readable: GET /v1/resolve?q=billionverify.com · GET /v1/domain/billionverify.com · this page as Accept: application/json or text/markdown · MCP lookup_domain

Automatically discovered from public files. Inclusion does not imply endorsement or publisher participation.

Claim my listing on Agent Web Map for billionverify.com:
1. POST https://agentwebmap.com/v1/sites/billionverify.com/claims and keep claim_id and claim_secret private.
2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://billionverify.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/billionverify.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/billionverify.com).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

Corrections or removal requests: contact the directory.