curlybracket.co.jp

What It Is

curlybracket is a Japanese provider of developer tools and web development services. Its main products are built around Movable Type CMS plugins, while it also offers the PHP shopping cart SKELETON CART and custom development for Movable Type plugins and Perl/PHP/JavaScript web applications. Overall, it is not a general-purpose development platform, but rather a practical toolset for a specific CMS ecosystem.

Core Features and Ecosystem

Security-related products stand out the most. AdminIPLimiter lets users restrict admin-panel access by IP without modifying web server configuration. It supports allowlists/denylists, multiple ways to specify IP addresses, redirects or error pages after denied access, and rule testing before deployment. This makes it suitable for operational environments without server-level privileges. TwoFactorAuthentication adds two-factor authentication to Movable Type 8/9, supporting authenticator apps, email verification codes, trusted devices, re-authentication after a set number of days or when the IP changes, mandatory rollout for all users, recovery codes, administrator resets, and more—covering many real-world operations scenarios. Other plugins include enhanced image uploads and dynamic previews. SKELETON CART is PHP-based and can integrate with CMSs, mail-order software, and credit card payments.

Support Scope and Documentation

The site explicitly lists compatibility for some versions: AdminIPLimiter supports MT 7.0/6.3; TwoFactorAuthentication supports Movable Type software, cloud, and AMI editions 8/9, but does not support MTOS, PowerCMS, or MTCMS, and also does not support MTA LDAP authentication. The pages provide links to documentation, notes, licensing information, and trial downloads, but the crawled content did not include the full documentation text, so it is difficult to assess documentation depth.

Pricing and Value for Money

The full version of AdminIPLimiter costs 11,000 JPY including tax, while the full version of TwoFactorAuthentication costs 22,000 JPY including tax. Both offer a 30-day trial for 0 JPY with no feature limitations. The full versions have no time limit, and each Movable Type instance requires one license. For organizations that still use Movable Type, the combination of a one-time license and trial-based validation keeps adoption risk relatively low; however, the value is limited for non-MT users.

Pros, Cons, and Best Fit

The strengths are clear product boundaries and a close fit with CMS operations pain points, especially for teams such as educational institutions, government agencies, and corporate websites that need to harden MT admin security. The downsides are the narrow ecosystem fit, limited disclosure around open-source status, payment methods, service SLA, and support channels, and the fact that the pages are mainly in Japanese, which creates a language barrier for Chinese teams.

China Access and Alternatives

The crawled text did not include information on network availability or payment methods, so china_access can only be marked as unknown. Chinese users running Movable Type may consider these plugins. For more general-purpose needs, alternatives include IP restrictions via a web server or WAF, general SSO/MFA solutions, or plugins from the official Movable Type and Six Apart ecosystem.