check-if-email-exists vs zeroclaw

check-if-email-exists and zeroclaw share 7 technologies: lapin, Tokio, tokio-executor-trait, tokio-reactor-trait, log, tracing, and tracing-subscriber. Both are written in Rust.

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What they share and what sets them apart

reacherhq

check-if-email-exists

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

Rust10.5kRead on November 13, 2026, at commit d548bb4What is check-if-email-exists built with?

Only in check-if-email-exists

In common

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
check-if-email-exists8,417 lines written64 code files
zeroclaw1,544,804 lines written1,152 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
check-if-email-exists1.1% of its commits signed by AIWith Claude Code and GitHub Copilot
zeroclaw14.1% of its commits signed by AIWith Claude Code, GitHub Copilot, Cursor, Codex, Devin, and CodeRabbit
ActivityFrom GitHub and its history, on the day SeeRepo read it.
check-if-email-existsLast push November 9, 20261,423 commits10,478 stars
zeroclawLast push November 6, 20265,441 commits33,152 stars
TestsThe files that test the code, and the share of code files a test imports.
check-if-email-exists1 test file
zeroclaw226 test files10.7% of its code files have a test that imports them

Frequently asked questions

Which is bigger, check-if-email-exists or zeroclaw?
zeroclaw, with 1,544,804 lines written; check-if-email-exists has 8,417.

The proof: zeroclaw-labs/zeroclaw's code at commit 92098cc

Which has more GitHub stars, check-if-email-exists or zeroclaw?
zeroclaw, with 33,152 stars; check-if-email-exists has 10,478.

The proof: zeroclaw-labs/zeroclaw on GitHub

Which has more tests, check-if-email-exists or zeroclaw?
zeroclaw, with 226 test files; check-if-email-exists has 1.

The proof: zeroclaw-labs/zeroclaw's code at commit 92098cc

Which was updated more recently, check-if-email-exists or zeroclaw?
check-if-email-exists: its last push was on November 9, 2026, and zeroclaw's on November 6, 2026.

The proof: reacherhq/check-if-email-exists's commits on GitHub

Which has more commits signed by AI, check-if-email-exists or zeroclaw?
zeroclaw: an AI signed 14.1% of its commits, with Claude Code, GitHub Copilot, Cursor, Codex, Devin, and CodeRabbit; in check-if-email-exists, 1.1%.

The proof: the commits each tool signed in zeroclaw-labs/zeroclaw

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