Store & connections

Store & connexions (Store & connections) gathers the tools your agents can use in the open project. Open the page from Outils UEFN › Connexions (UEFN tools › Connections).

A connection gives an agent real actions, whereas a Skill only gives it instructions.

The categories

Category	Content
Tout (All)	The whole store
Connexions (Connections)	UEFN officiel (Official UEFN), Blender, Meshy, Tripo and your MCP servers
Skills	The packs whose identifier starts with `uefn-`. The others are on the Skills page
Moteurs IA (AI engines)	The gateways to your AI accounts
Installés (Installed)	What is already installed

Higgsfield does not appear under Connexions: look for it under Tout.

By default, a new project contains UEFN officiel and Blender enabled, and Meshy disabled. Tripo and Higgsfield are installed on request. A connection belongs to a single project.

On a card, Activé · connexion à tester (Enabled · connection to test) means that the connection is active, not that it works.

Enable a connection

On the card, click Installer (Install) if needed, otherwise Voir la fiche (View details).
In the Configuration tab, follow what is asked: an API key with Enregistrer la clé (Save the key), signing in to your account, or steps in the other software. See UEFN, Blender, Meshy, Tripo, Higgsfield.
Tick Activer cette connexion (Enable this connection), then click Enregistrer (Save).
Click Tester et découvrir (Test and discover). The Outils (Tools) tab shows the tools actually available.
Check Accès des agents (Agent access), below.

The Outils tab also lets you call a tool yourself with Préparer l’appel (Prepare the call). Without confirmation enabled, the call goes out immediately.

Désinstaller (Uninstall) removes the connection from the project’s agents. The third-party software stays installed.

As long as an agent is working on the project, these settings are refused: Arrêtez les agents de ce projet avant de le modifier. (Stop the agents in this project before changing it.)

Agent access

A connection that works is not open to all profiles for that reason alone. The Accès des agents section appears under the Aperçu (Overview) and Outils tabs of the connection’s page.

Open Choisir les agents autorisés (Choose the authorised agents).
Tick the profiles concerned. Each receives all the tools of the connection.
Send a new message: access is reloaded, there is no need to recreate the conversation.

The profile’s read-only restrictions and the confirmations still apply.

The specialists receive the connections for their trade when the project is created, and the choice of 3D tool adjusts Blender and Meshy. Tripo, Higgsfield and your servers are not assigned to any profile: it is up to you to do so. A direct conversation, without a profile, has all the enabled connections.

Custom MCP servers

Click MCP personnalisé (Custom MCP).
Give a Nom (Name) and keep MCP générique (Generic MCP) in Type de connexion (Connection type).
Choose the Transport:
- Streamable HTTP: fill in URL MCP (MCP URL), in HTTPS, or in HTTP for a server on your PC. No key in the address. If the server asks you to sign in to an account, the button appears once the page is saved.
- Processus local / stdio (Local process / stdio): fill in Exécutable local (Local executable), the full path of uvx.exe or node.exe, then Arguments de lancement (Launch arguments), one per line. Command prompts and .bat or .cmd files are refused.
Tick Activer cette connexion, click Enregistrer, then Tester et découvrir.
Authorise the profiles in Accès des agents.

Secrets go neither in the address nor in Réglages du serveur (Server settings): use their reference.

All the tools of a custom server count as modifications, so they are refused in Ask and Plan. To allow a read, declare it in Outils reconnus en lecture seule (Tools recognised as read-only), under Permissions et identité (Permissions and identity), after checking it.