Fleet Agent Site Manager: First Look at the Self-Hosted WPMgr Remote Site Connector

The Scenario Where You'd Actually Reach For This

Picture a small agency managing 40 client WordPress sites spread across three different hosts — a couple on Kinsta, a handful on SiteGround, the rest on a mix of cheap VPS boxes resold by a hosting reseller. You don't control the infrastructure layer, you just need one screen that tells you which of those 40 sites has a pending core update, which ones haven't backed up in 72 hours, and which plugin just got flagged with a CVE. You also don't want your client data — credentials, backup archives, site telemetry — sitting on someone else's SaaS servers if you can avoid it.

That's the specific itch Fleet Agent Site Manager scratches. You install the plugin on each of those 40 sites, point it at a WPMgr dashboard (either one you spin up yourself on a VPS, or a hosted instance if you don't want to run your own), and each site registers itself as an agent that phones home over a cryptographically signed channel. No shared database, no giving the dashboard your wp-admin password — the plugin and dashboard authenticate each other using Ed25519 signatures, so the trust model is closer to how SSH keys work than how most "remote management" plugins handle auth (typically an API key sitting in wp_options).

If that's not your situation — if you run one or two sites, or you're fine with your management data living on a vendor's cloud and you just want a dashboard today without touching a terminal — this plugin is probably not your fastest path. It's aimed squarely at people managing a fleet who either want infrastructure control or need to self-host for compliance/data-residency reasons.

What It Actually Is

Fleet Agent Site Manager is the agent half of a two-part system. The plugin itself is free, MIT-licensed, and available directly from the WordPress.org plugin repository. It does not manage anything on its own — it's a connector. Once installed, it establishes a signed, authenticated link between your WordPress install and a WPMgr dashboard, which is where the actual fleet-wide views live: backup status, update queues, caching controls, security scan results, and performance metrics aggregated across every connected site.

The dashboard side comes in two flavors:

• Self-hosted WPMgr: an open-source dashboard you deploy yourself (your own server, your own Docker container, your own backups-of-backups policy). This is the option that matches the "I don't want my data on someone else's SaaS" use case above.
• Hosted WPMgr dashboard service: a managed version of the same dashboard, for people who want the multi-site control plane without running infrastructure themselves.

Either way, the plugin's job is narrow and well-scoped: register the site, verify the dashboard's signature, accept signed commands (run backup, apply update, flush cache), and report status back. That narrowness is actually the most notable thing about it — it's not trying to be a one-plugin-does-everything tool, it's the secure transport layer for a separate control plane.

Pricing

This is the area where Fleet Agent Site Manager is currently hardest to pin down, and worth being upfront about: no public pricing has been published for the hosted WPMgr dashboard service as of this writing. What we know for certain:

• The plugin itself is free — MIT license, listed on WordPress.org, no cost to install on any number of sites.
• Self-hosting WPMgr costs whatever your own server/VPS costs — there's no license fee mentioned for the open-source dashboard software itself.
• The hosted dashboard service exists as an option but pricing tiers, per-site costs, or free-tier limits are not listed on the plugin page or in available documentation.

If budget certainty matters to you right now, that's a real gap compared to the established players below, all of whom publish pricing you can budget against today.

How It Compares

	Fleet Agent Site Manager (+ WPMgr)	ManageWP	InfiniteWP	Kinsta Management Hosting
Price	Plugin free (MIT); dashboard self-hosted (your server cost) or hosted (pricing not published)	Free tier for basics; paid add-ons (Backups, SEO, Client Reports) typically $1–$15/site/month	Free self-hosted admin panel; paid add-ons for backups/client reports, roughly $60–$150/year per add-on	Bundled into Kinsta hosting plans starting at $35/month (Hobby tier covers 1 site; multi-site fleets need Business/Enterprise tiers)
Auth model	Ed25519 signature-based agent/dashboard handshake	API key + OAuth-style account linking to ManageWP's cloud	API key stored per connected site, self-hosted admin panel	Tied to Kinsta account/API, infrastructure-level access since Kinsta hosts the sites
Data residency	Your choice: fully self-hosted dashboard, or hosted option	Centralized on ManageWP's (GoDaddy-owned) servers	Centralized on your own self-hosted InfiniteWP panel server	Centralized on Kinsta's infrastructure, since they're also your host
Best for	Agencies/devs who want infra control and don't want site credentials sitting in a third-party SaaS	Agencies wanting a fast, polished, no-infra dashboard with client reporting built in	Agencies who want self-hosted control but a more mature, longer-established feature set	Teams already hosting every site on Kinsta who want management folded into hosting itself
Works across hosts	Yes, any host, since it's just a WordPress plugin	Yes, any host	Yes, any host	No — only works for sites hosted on Kinsta
Maturity	Brand new, first release on WordPress.org	Mature, used by tens of thousands of agencies since 2011	Mature, self-hosted staple since 2012	Mature as a hosting feature, newer as a "fleet dashboard" concept

The Honest Verdict

If you're currently paying per-site fees to ManageWP or wrangling InfiniteWP's aging interface, Fleet Agent Site Manager is worth a sandbox test today — install the plugin on one staging site, stand up a self-hosted WPMgr instance on a cheap VPS, and see if the signed-handshake model feels solid before you migrate a real fleet onto it. It's not yet a drop-in replacement: there's no mature client-reporting layer, no marketplace of add-ons, and critically, no published pricing for the hosted option if you don't want to self-host the dashboard yourself. Treat this as an infrastructure-conscious, early-stage alternative rather than a finished product you migrate 40 client sites to this afternoon.