Who should use ErrLookup?

ErrLookup is an open-source project built for developers and AI coding agents.

Yes — ErrLookup is free to use.

What platforms does ErrLookup run on?

ErrLookup runs on the web, the command line, and API. It can also be self-hosted.

Is ErrLookup still maintained?

Unverified. ErrLookup 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 ErrLookup?

Similar projects tracked by PulseGate include EfficiencyNext Data Connector, CKB, and GITVERSE.

ErrLookup is developed by Standard Beagle.

How long has ErrLookup been around?

ErrLookup first shipped in 2026.

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ErrLookup

Name: ErrLookup
Author: Standard Beagle

standardbeagle.comInfrastructure

ErrLookup maintains a structured dataset of user-facing errors from popular open-source libraries including exact messages, root causes, ordered fixes, and defensive coding patterns. It provides this knowledge through a local-first MCP server for AI agents and a searchable web interface. The dataset is generated through AI-assisted analysis of library source code pinned to specific commits.

FreeWebSelf-hostedCLIAPI

Visit standardbeagle.com

Overview

5 features

In the Developer Tools space, ErrLookup takes a focused approach. Helping developers and AI coding agents quickly understand and resolve error messages from open-source libraries. ErrLookup is an open-source project aimed at developers and AI coding agents. ErrLookup costs nothing to use. It ships for the web, the command line, and API, and it can be self-hosted.

It is developed by Standard Beagle, and it first shipped in 2026. Among its 5 catalogued features are error explanations, fix recommendations, and library analysis. It exposes integrations via an MCP server.

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

Error explanations
Fix recommendations
Library analysis
MCP server
Offline dataset

Built with & integrations

Framework

Astro

Hosting

Cloudflare

Connectors

MCP

Runs on

BrowserSelf-hostedCLIAPI-only

Detected from

Astro: /_astro/ in the HTML
Cloudflare: cf-ray header

Trust & compliance

Verified signals

HTTPSFree tierGitHub

Indexing history

What PulseGate has recorded for this listing

Indexed1 Aug · 17:05 UTC
Show HN: An MCP server that knows what that error message means verified against its public source
Source: PulseGate · Open

Frequently asked questions about ErrLookup

What is ErrLookup?: Helping developers and AI coding agents quickly understand and resolve error messages from open-source libraries. It is catalogued under Developer Tools on PulseGate.
Who should use ErrLookup?: ErrLookup is an open-source project built for developers and AI coding agents.
Is ErrLookup free?: Yes — ErrLookup is free to use.
What platforms does ErrLookup run on?: ErrLookup runs on the web, the command line, and API. It can also be self-hosted.
Is ErrLookup still maintained?: Unverified. ErrLookup 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 ErrLookup?: Similar projects tracked by PulseGate include EfficiencyNext Data Connector, CKB, and GITVERSE.EfficiencyNext Data Connector CKB GITVERSE
Who makes ErrLookup?: ErrLookup is developed by Standard Beagle.
How long has ErrLookup been around?: ErrLookup first shipped in 2026.

At a glance

Platforms: Web
Languages: English
Open source: Yes (GitHub)
First seen: 1 Aug 2026
Built for: Developers and AI coding agents
Model: Open source
Solves: Helping developers and AI coding agents quickly understand and resolve error messages from open-source libraries.

Registered as

GitHub: standardbeagle/err-lookup

Developer

Standard Beagle

GitHub

Open source

View on GitHub

Live coverage

Identity confidence: Medium · 72.8
Indexed: 1 Aug 2026
Lifecycle: Alive
First seen: Aug 2026
Last seen: 1 Aug 2026

Identity audit (13)

Slug: show-hn-an-mcp-server-that-knows-what-that-error-me-standardbeagle-com
Lifecycle state recorded: 1 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 1 Aug 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
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: 4 Aug 2026
Canonical URL: https://errors.standardbeagle.com/

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