MCP Server Tool Validates Norwegian Company Numbers Against Official Business Registry

·1 views

A developer tool called registry-mcp allows users to validate and enrich Norwegian organisasjonsnummer (org.nr) entries by checking them against Brønnøysundregistrene's Enhetsregisteret, Norway's official business registry. The tool first runs a local MOD11 checksum validation on each number before making any network calls, catching formatting errors and transposed digits without consuming API lookups. Valid numbers are then looked up to retrieve details such as legal form, VAT registration status, active/inactive status, and city. The tool distinguishes between three failure types: structurally invalid numbers, well-formed numbers that do not exist in the registry, and real entities that are simply not VAT-registered. It is available as an MCP server via HTTP or locally through stdio, and its source code is published on GitHub.

Read the full story at DEV Community

This is an AI-generated summary. ShortSingh links to the original source for the complete article.

Discussion (0)

Reddit Ranks for 166M Google Keywords, Offering a Content Strategy Roadmap

Reddit ranks for approximately 166 million keywords on Google, with over 65 million appearing on the first page, according to a Semrush snapshot from August 2026. More than 10 million of those keywords hold the top position, highlighting the platform's vast organic search presence. Analysts suggest businesses should treat Reddit's search footprint as a map of real user demand, revealing the language and questions people use before they identify a specific product or solution. Rather than replicating Reddit content, companies are advised to identify recurring questions and gaps in their niche and publish original, well-structured answers that go beyond what community threads typically offer. Reddit's influence also extends to AI Overviews, where it is cited in more than 15 million results tied to roughly 35 million of its ranking keywords.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

How Tuning a SIEM From Scratch Exposes the Gaps in Default Security Rules

A cybersecurity practitioner documented their first hands-on project configuring and tuning a SIEM setup using Wazuh and Sysmon in a lab environment. The project focused on a three-node Active Directory setup to test how well default detection rules catch real adversary techniques such as credential dumping and log clearing. Out-of-the-box security tools were found to generate excessive alert noise while missing low-severity but high-risk indicators that blend into normal activity. The author had to write custom detection rules and modify existing policies to surface meaningful, actionable alerts from the log clutter. Key technical hurdles included silent agent disconnections caused by virtual machine idle suspensions, which required manual TCP connection checks and service restarts to resolve.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

Developer Tests GPT-6 on Live Blog, Finds Useful Gains With Some Caveats

A developer recently used GPT-6 to run two rounds of iterative improvements on their live knowledge-network blog, See the Forest. The project visualises interconnected notes as a star map where nodes represent topics or articles linked by relationship strength. GPT-6's changes included fitting more search results on the first screen, adding an expandable mobile table of contents, and sharpening the visual appearance of stars and connections. Not all experiments were deemed worth keeping, and some automated checks did not pass, highlighting the tool's limitations. The author also used the write-up to introduce See the Forest, a personal project designed to help users understand knowledge as an interconnected network rather than isolated articles.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

OpenBSD 7.9 Released as Project's 60th Version, Upgrade Guide Published

The OpenBSD Project released version 7.9 on May 19, 2026, marking the operating system's 60th release. The upgrade from 7.8 to 7.9 is primarily handled via the sysupgrade command, which downloads and applies new system sets automatically before rebooting. Users are advised to ensure at least 1.1 GB of free space under /usr and to review configuration and syntax changes before proceeding. Notable changes in this release include a major PostgreSQL update, bringing it to version 18.1, which may require advance data backups. After the upgrade, administrators may need to manually run sysmerge in certain cases to reconcile configuration file differences.

0 comments Read more at DEV Community