MailValid
Accurate email verification service from $0.0008/email.
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Description
Accurate email verification service from $0.0008/email. Email verification by CSV, API or MCP. 100 free credits, no card, credits never expire.
About MailValid
What is MailValid?
MailValid verifies email addresses through a web app, bulk files, REST API, and MCP tools, with non-expiring verification credits.
What MailValid does
It checks address syntax, domain and MX records, and mailbox responses without sending an email. Results include status, reason, provider, confidence, and flags for disposable, role-based, free-provider, and catch-all addresses. Lists can be processed in the background and exported.
Who MailValid is for
It is for marketers, agencies, recruiters, outbound teams, CRM operators, SaaS signup workflows, and developers automating email checks.
How MailValid works
Users paste a single address, or create an account and upload a CSV or TXT file for bulk verification. The service detects the email column, checks the list, and exports CSV or JSON. Developers use an API key for endpoints or connect an MCP client to the same engine and balance.
Key features
- Single-address checks work in the browser.
- CSV and TXT upload supports bulk list cleaning.
- Bulk jobs accept up to 10,000 addresses.
- Syntax, domain, MX, and SMTP checks are included.
- Results flag disposable, role-based, and catch-all addresses.
- Provider and confidence fields accompany status reasons.
- Async jobs support polling or webhook notification.
- REST and MCP share the credit system.
Pricing
As listed on mailvalid.io, checked 14 October 2026. Prices can change; see the site for current terms.
- One-time pack: $19 for 5,000 credits.
- MailValid Plus: from $29 per month for 10,000 credits.
- Displayed Plus tier: $129 per month for 100,000 credits.
Facts from mailvalid.io, checked 14 October 2026
- Named MCP clients include Claude Desktop, Claude Code, and Cursor.
- API examples include cURL, Python, JavaScript, and PHP.
Written from MailValid's own website (Homepage, Pricing, Features, Docs). The maker can claim this listing to edit it.
Categories
Frequently asked questions
Can a single address be checked without an account?
The homepage offers free single verification without an account.
What does signup provide?
New accounts receive 100 free credits without a card.
Which results spend credits?
The docs charge one credit for valid, invalid, catch-all, and do-not-mail results; unknown results use zero.
Are cached results free?
The docs say definitive cached results are billed as normal verification results.
Do unused credits expire?
Credits roll over indefinitely and remain in the account after a subscription is canceled.
Are webhooks signed?
Bulk-completion webhooks include a signature checked against the raw body using the account webhook secret.