Steep focuses on catching type errors in Ruby code before runtime. It is catalogued under Code review & quality on PulseGate.

Who should use Steep?

Steep is an open-source project built for ruby developers.

Does Steep have a free plan?

Yes — Steep is open source under the Open Source license and free to use.

What platforms does Steep run on?

Steep runs on the web and the command line. It can also be self-hosted.

Is Steep still active?

Unverified. Steep has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Steep?

Similar projects tracked by PulseGate include coherence-check, apipatch, and todoage.

Steep is developed by Soutaro Matsumoto.

Is Steep open source?

Yes — Steep is open source under the Open Source license.

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Steep

Name: Steep
Author: Soutaro Matsumoto

github.comInfrastructure

Steep is an open-source static type checker for Ruby. It analyzes Ruby code against RBS signatures to identify type errors during development and can be integrated into developer workflows.

Open SourceWebCLISelf-hosted

Visit github.com

Overview

6 features

Steep is a Code review & quality project. It focuses on catching type errors in Ruby code before runtime. It is built as an open-source project for ruby developers. The project is open source (Open Source). It ships for the web and the command line, and it can be self-hosted.

Behind Steep is Soutaro Matsumoto. Among its 6 catalogued features are static type checking, ruby analysis, and RBS support.

Summary written by a language model from the project’s public pages.

Static type checking
Ruby analysis
RBS support
Type error reporting
Command-line interface
Editor integration

Built with & integrations

Runs on

BrowserCLISelf-hosted

Trust & compliance

License

Open Source

Verified signals

HTTPSOpen SourceFree tier

Indexing history

What PulseGate has recorded for this listing

Indexed27 Aug · 09:04 UTC
steep verified against its public source
Source: PulseGate · Open

Frequently asked questions about Steep

What is Steep?: Steep focuses on catching type errors in Ruby code before runtime. It is catalogued under Code review & quality on PulseGate.
Who should use Steep?: Steep is an open-source project built for ruby developers.
Does Steep have a free plan?: Yes — Steep is open source under the Open Source license and free to use.
What platforms does Steep run on?: Steep runs on the web and the command line. It can also be self-hosted.
Is Steep still active?: Unverified. Steep has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Steep?: Similar projects tracked by PulseGate include coherence-check, apipatch, and todoage.coherence-check apipatch todoage
Who develops Steep?: Steep is developed by Soutaro Matsumoto.
Is Steep open source?: Yes — Steep is open source under the Open Source license.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
First seen: 27 Aug 2026
Built for: Ruby developers
Model: Open source
Solves: Catching type errors in Ruby code before runtime.

Developer

Soutaro Matsumoto

Index record

Identity confidence: Medium · 68
Indexed: 27 Aug 2026
Lifecycle: Alive
First seen: Aug 2026
Last seen: 27 Aug 2026

Identity audit (13)

Slug: steep-github-com
Lifecycle state recorded: 27 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 27 Aug 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 27 Aug 2026
Canonical URL: https://github.com/soutaro/steep

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