# emailverifier.dev

> emailverifier.dev checks email addresses for developer signup flows, bulk CSV lists, and AI agent workflows through REST and MCP.

## Product facts and limits

- Checks: email syntax, mail-routing DNS, disposable/free-provider classification, role-address signals, and SMTP acceptance/catch-all evidence when available.
- Results: deliverable, risky, undeliverable, or unknown, with allow, review, or block actions and explanatory signals.
- Timeouts, policy blocks, and inconclusive SMTP evidence stay unknown. Verification does not prove inbox ownership or guarantee delivery.
- Signup: create an account and project, then copy its API key. Keep API keys on the server; never embed them in browser code.
- Starter credits: 1,000 non-expiring credits once per account, applied to its first project.
- Paid credits: 20,000 non-expiring credits per one-time $10 USD pack. No subscription is required.
- Each authenticated email verification or domain check costs one project credit, regardless of result. GET /api/v1/usage costs no credits.
- The no-key public demo is limited to 10 checks per hour. Dashboard bulk verification accepts CSV or TXT files with up to 5,000 unique addresses per job.

## Primary Docs

- [Pricing](https://emailverifier.dev/pricing): Starter credits, paid packs, and optional auto top-up.
- [Integration guides](https://emailverifier.dev/guides): Existing tutorials grouped by framework, verification results, automation, and mail routing.
- [Bulk email verifier](https://emailverifier.dev/bulk-email-verifier): Upload a CSV or TXT list in your project dashboard.
- [API docs](https://emailverifier.dev/docs/api): Redoc reference for the email verification API.
- [Email verifier MCP server](https://emailverifier.dev/docs/mcp): Claude Code, Cursor, and Codex setup; OAuth and API-key authentication; verify_email and check_domain results, pricing, and troubleshooting.
- [OpenAPI JSON](https://emailverifier.dev/api/openapi.json): Machine-readable API contract.
- [Domain report directory](https://emailverifier.dev/domains): Public index of email domain risk reports.
- [Free email tools](https://emailverifier.dev/tools): MX, SPF, DMARC, and disposable-provider lookup tools.
- [Alternatives](https://emailverifier.dev/alternatives): Factual comparisons with other email verification products.
- [Domain report JSON](https://emailverifier.dev/api/v1/domains/mailinator.com): Machine-readable risk report for one domain.

## Verification evidence

- [What is email verification?](https://emailverifier.dev/blog/what-is-email-verification): How the checks work and what they can establish.
- [Handle API results](https://emailverifier.dev/blog/email-verification-api-results): Production handling for allow, review, and block decisions.
- [Catch-all email domains](https://emailverifier.dev/blog/catch-all-email-domains): Why recipient acceptance can remain ambiguous.
- [About](https://emailverifier.dev/about): Product background and verification approach.
- [Contact](https://emailverifier.dev/contact): Support and business contact.

## Domain Report Hubs

- [Disposable email domains](https://emailverifier.dev/domains/disposable-email-domains): Temporary mailbox and throwaway provider reports.
- [Free and personal email providers](https://emailverifier.dev/domains/free-email-providers): Free and paid mailbox, ISP email, and privacy relay reports.

## Example Reports

- [mailinator.com report](https://emailverifier.dev/domains/mailinator.com): Disposable email provider example.
- [gmail.com report](https://emailverifier.dev/domains/gmail.com): Free mailbox provider example.