Who should use Baldur?

Baldur is an open-source project built for python developers.

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

What platforms does Baldur run on?

Baldur runs on the command line. It can also be self-hosted.

Is Baldur still active?

Unverified. Baldur 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.

Baldur is developed by baldurhq.

Is Baldur open source?

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

Back to the index

Baldur

Name: Baldur
Author: baldurhq

github.comInfrastructure

Baldur is an open-source Python reliability layer that combines circuit breaking, retries, and fallback behavior behind a single decorator. Its framework-agnostic core includes adapters for Django, FastAPI, Flask, and Celery, helping developers make service calls more resilient.

Open SourceCLISelf-hosted

Visit github.com

Overview

9 features

Baldur sits in PulseGate's Frameworks & SDKs category. It focuses on preventing transient failures and dependency outages from cascading through Python applications. Baldur is an open-source project aimed at python developers. The project is open source (Open Source). It runs on the command line, and it can be self-hosted.

baldurhq builds and maintains Baldur. Among its 9 catalogued features are circuit breaker, retry handling, and fallbacks.

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

Circuit breaker
Retry handling
Fallbacks
Single decorator
Framework adapters
Django support
FastAPI support
Flask support
Celery support

Built with & integrations

Runs on

CLISelf-hosted

Trust & compliance

License

Open Source

Verified signals

HTTPSOpen SourceFree tier

Indexing history

What PulseGate has recorded for this listing

Indexed27 Aug · 13:22 UTC
Show HN: Baldur – Reliability layer for Python (one decorator) verified against its public source
Source: PulseGate · Open

Frequently asked questions about Baldur

What is Baldur?: Baldur focuses on preventing transient failures and dependency outages from cascading through Python applications. It is catalogued under Frameworks & SDKs on PulseGate.
Who should use Baldur?: Baldur is an open-source project built for python developers.
Is Baldur free?: Yes — Baldur is open source under the Open Source license and free to use.
What platforms does Baldur run on?: Baldur runs on the command line. It can also be self-hosted.
Is Baldur still active?: Unverified. Baldur 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.
Who makes Baldur?: Baldur is developed by baldurhq.
Is Baldur open source?: Yes — Baldur is open source under the Open Source license.

At a glance

Pricing: Open Source
Platforms: Api · Cli
Languages: English
License: Open Source
First seen: 27 Aug 2026
Built for: Python developers
Model: Open source
Solves: Preventing transient failures and dependency outages from cascading through Python applications.

Developer

baldurhq

Index record

Identity confidence: High · 96.8
Indexed: 27 Aug 2026
Lifecycle: Alive
First seen: Aug 2026
Last seen: 27 Aug 2026

Identity audit (13)

Slug: show-hn-baldur-reliability-layer-for-python-one-decorator-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/baldurhq/baldur

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