Data PendingOSI-approved OSSEmailUncategorizedEvidence Watch

check-if-email-exists

Check if an email address exists without sending any email, written in Rust. Comes with a ⚙️ HTTP backend.

Data confidence90/100
Source coverage85/100
Publish confidence89/100
Evidence checkedOct 31, 2026
About this tool

What ToolVitals knows about check-if-email-exists

Check if an email address exists without sending any email, written in Rust. Comes with a ⚙️ HTTP backend.

This tool has an OSI-approved open-source license signal.

Useful public signals are available, but the evidence is not yet complete enough for a strong ToolVitals verdict.

Source-visible projectUncategorizedOSI-approved OSSEvidence Watch
Score coverage

Evidence Watch

ToolVitals has useful public signals for check-if-email-exists, but not enough evidence to publish a strong verdict score yet.

GitHub source90/100 data confidence
Project provenance

Fork network

Popular active forks

Highest GitHub star count first
Repository

GitHub Activity

RS
reacherhq/check-if-email-exists
Stars10,358
Forks763
Contributors3Active in 90d · as of Oct 31, 2026
Open Issues60
Primary Language
Rust
Last Commit
Today
Commits 30d
21
Commits 90d
21
Releases 90d
5
Default Branch
master
License
MIT
Repository Status
Active repository
Evidence

Signal Quality

Data Confidence90/100Strong
Source Coverage85/100Strong
Publish Confidence89/100Strong

ConfidenceHigh-confidence score from multiple public signals.

How ToolVitals scores work
Openness

License Evidence

Class
OSI-approved OSS
License
MIT

This tool has an OSI-approved open-source license signal.

Sources

Tracked Sources

Profile

Classification

Category
Email
Use Case
Uncategorized
Openness
OSI-approved OSS
License
MIT
Tool Mode
Source-visible project
Score Model
Public Signal Watch
Score Visibility
Evidence Watch
Status
Data Pending
Maintainers

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Machine-readable profile

Use the clean Markdown or structured JSON representation from the same published ToolVitals evidence snapshot.

ToolVitals agent access guide
Tags
open-sourceemailemail-validationemail-validation-apiemail-verificationemail-verification-apiemail-verifierhacktoberfestapi-firstdeliverabilityapi