Official Catalog

The official catalog is the set of agents and fleets MUR publishes and maintains. Unlike a .muragent a friend shares with you, an official item is signed by MUR and arrives with a license bound to your account — it verifies on your machine and nowhere else.

mur auth login                             # required to install; browsing is not
mur official list                          # what MUR publishes
mur official install agents/researcher     # download, verify, install

list is a public, unauthenticated read — you can see what exists before signing up. install needs a login, and pro-tier items need an active MUR Pro subscription.

What "official" buys you

An installed official agent has been through the same trust chain as any imported agent, plus two things a shared file cannot have:

• Publisher identity. The bundle is signed with MUR's official publisher key, whose fingerprint is pinned into the mur client itself. A bundle claiming to be official but signed by anything else is refused — the check is in the client, not the server.
• An account-bound license. The download carries a signed OfficialLicense naming your account and the exact item and version. The install path re-checks it, so passing the .muragent file to someone else does not give them a working agent: their machine has no matching license and the install is refused with a pointer back here.

Both checks fail closed. A missing or mismatched license refuses the install rather than degrading to an unofficial one.

Licenses live in ~/.mur/licenses/. Expiry gates downloads, never content you already installed — an expired subscription stops you fetching new items, it does not disable the agents you have.

From the Hub

MUR Hub's + New Agent wizard offers the catalog as one of three sources an agent can come from:

• Role template — describe the job, MUR writes the skills and system prompt
• Official catalog — this page
• Import a file — a .muragent someone shared

Whichever route you take, giving the agent a pet appearance is the last step, so an agent installed from the catalog can live on your desktop like any other.

Free and pro items

Each catalog entry declares a tier. Free items install with any logged-in account; pro items require an active subscription, checked at download time. mur official list shows the tier next to each item, so you know before you try.

Troubleshooting

not logged in — run 'mur auth login' first — list works without a login, install does not.

'<id>' requires an active MUR Pro subscription — the item is pro-tier. Manage your subscription at app.mur.run.

server returned an invalid license — refusing install — the license did not verify against the pinned official key, or names a different account or item. Nothing was installed. This is the anti-sharing gate doing its job; if you downloaded through mur official install and see it, report it.

catalog request failed: HTTP 503 — the catalog service is reachable but has nothing to serve. The error carries the server's own explanation; nothing on your side to fix.