Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
Cirrus is a single-user AT Protocol Personal Data Server (PDS) designed to run a personal Bluesky/AT Protocol data service on Cloudflare Workers. It uses Durable Objects to store the repository and R2 for blobs/media, allowing it to host one account’s Bluesky identity, posts, follows, and media. The page emphasizes that there is no need to maintain servers, containers, or database backups, making it suitable for users who want to keep their personal social identity on infrastructure they control.
In terms of functionality, Cirrus is not a general-purpose development platform, but a lightweight PDS implementation built for the AT Protocol. It supports creating a new PDS, deployment via a quick-start scaffold, and migration from bsky.social to Cirrus, including DID rotation. For authentication, the documentation covers static tokens, sessions, app passwords, OAuth, and passkeys. It also provides pds CLI commands, parameters, and examples. Technically, it relies heavily on Cloudflare Workers, Durable Objects, and R2; the main text does not disclose a specific programming language, framework, or SDK.
Cirrus itself does not list commercial pricing. The page says it can usually fit within Cloudflare’s free tier, but users still need a Cloudflare account, R2, and a domain name. In practice, costs depend on Cloudflare resource usage, R2 storage and traffic, and domain fees. Deployment is self-hosted and requires some familiarity with domains, Cloudflare, and command-line operations.
Its strengths are a lightweight architecture, low operational burden, strong data control for a single Bluesky account, and documentation covering deployment, migration, architecture, authentication, CLI usage, and the roadmap. The downsides are also clear: the project is still in experimental beta, breaking changes may occur, and edge cases are not yet fully covered. It is only suitable for a single user, not for running a multi-user PDS, and it is deeply tied to the Cloudflare ecosystem.
Cirrus is best suited to developers familiar with Cloudflare and power users of decentralized social networks who want to self-host their personal AT Protocol identity. It is not ideal for completely non-technical users or teams that need a stable commercial SLA. The main text does not describe access from China; given its reliance on Cloudflare, the Bluesky/AT Protocol ecosystem, and domain configuration, real-world network availability should be tested independently. Payment options are not mentioned. Alternatives include continuing to use bsky.social, deploying the official AT Protocol PDS, or choosing another hosted PDS provider.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on cirrus.earth official site.
cirrus.earth is an Unknown Dev Tools provider. TG4G tracks its product information, an overall rating of 7.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach cirrus.earth directly.