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Klemail 🇫🇷

Clean lists, emails that land

Data & Discovery
For AI agents
None readiness
About

What is Klemail 🇫🇷

Klemail takes uploaded email lists in CSV, Excel, or TXT format and runs them through a verification process that flags invalid addresses, catches disposable emails, and separates generic inboxes from real ones. It's built for solo marketers and small marketing or RevOps teams at early- or growth-stage companies who need to clean a list before a campaign without wiring up a complex stack. The standout capability is its automatic email correction — it doesn't just flag bad addresses, it attempts to fix them, which can recover contacts that would otherwise be lost. Uploaded data is deleted after processing, which matters for teams with basic data hygiene requirements. That said, Klemail has no native integrations with CRMs or email platforms, so moving cleaned data back into your workflow is a manual step every time.

Data & Discovery
Capabilities

Key features

Email verification

validates whether an address is deliverable

Our verdict

Vanderbuild take

Klemail is a focused, no-frills email verification tool that does one thing — cleans lists — and is a reasonable fit for Marketing and RevOps teams at small companies who need to cut bounce rates before a send. On the agentic readiness front, this is UI-only; there's no confirmed public API and no MCP server, so you can't drive it from an agent or plug it into an automated enrichment pipeline without scraping the interface. Free or near-free to start, with usage-based on-demand packs and monthly plans from €19.90 — low risk to test on a real list. The honest limitation is the integration gap: with no native connectors to HubSpot, Salesforce, or any sending platform, every clean-and-export cycle is a manual file shuffle, which adds friction at any meaningful send volume.

Mateusz Sekta
Founder, vanderbuild
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Our Resources

The wedge

Agentic stack profile

API
Not public

No public programmatic access.

No public API. Not usable from an agent without scraping.

Agentic readiness
None

Not usable from an agent without scraping.

No public API. UI-only. Not usable from an agent without scraping, which we don't recommend.

Stack role
Verifier

Where this tool slots into an agentic pipeline.

Plays the role of Verifier in an agentic pipeline. Use it to validate emails or phones before an agent sends or dials.

Compare

Klemail 🇫🇷 alternatives

Tools that solve a similar problem — compared at a glance.

Klemail 🇫🇷(this tool)
Pricing
Usage-based
Budget
$
Best for
Marketing, RevOps
Readiness
None
API
No
BounceBan
Pricing
Freemium
Budget
$
Best for
SDR / BDR, Marketing
Readiness
Capable
API
REST
Emailable
Pricing
Usage-based
Budget
$
Best for
RevOps, Marketing
Readiness
Capable
API
REST
Answers

Frequently asked questions

Does Klemail 🇫🇷 have a public API?

No — there's no publicly documented API as of today. Klemail 🇫🇷 is operated through its UI.

How much does Klemail 🇫🇷 cost?

Klemail 🇫🇷: pricing is usage-based, expect entry tier ($) spend. Full pricing page: https://klemail.io/en/tarifs/.

Who is Klemail 🇫🇷 best for?

Klemail 🇫🇷 is built for Marketing, RevOps. Fits Solo, SMB (1-50)-sized teams.