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Introduction

Just recently Canvas added support for the Dynamic Registration of the LTI Advantage . This is a 1 step process for the registration of LTI Tools. It enables Praxis AI to offer a simplified onboarding process for our LTI solution. The process is described in this document. It allows:
  • Administrators to register Pria as an LTI tool in just 1 click and
  • Faculty Staff to create a digital twin for every placement of Pria in their course
This process needs to be done just once for your Canvas instance.

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Prerequisites

Before you begin, ensure you have:
  • Canvas admin access with Developer Keys permissions
  • Permission to register external LTI tools at your institution
  • A Praxis AI Digital Twin instance created at pria.praxislxp.com
  • Third-party cookies enabled in your browser (required for LTI launches)
Estimated setup time: 10-15 minutes using Dynamic Registration, 20-30 minutes for Manual Registration.

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Developer Keys

1

Navigate to Developer Keys Section

Log into your canvas instance, then go to the Admin -> Developer Keys section
2

Add LTI Registration

Under the Developer Key menu, select LTI Registration
3

Enter Registration URL

https://prialti.praxislxp.com/register
4

Click Continue

Click the Continue button to proceed with the registration.
5

Placement Selection (Optional)

Update the name of the placement to “Pria, Praxis AI”. This is the name that teachers will see when placing Pria in their course.The placements offered by the dynamic registration process as follows:
  • Page Menu
  • Account Navigation
  • Course Navigation
  • Link Selection
6

Register & Enable

In the Register App modal, click Enable and Close
7

Complete

Your new Pria LTI instance has been created
Copy the Client ID to your clipboard. The example here is: 243790000000000223

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Manual Registration

As of July 2024, Canvas doesn’t offer to add or placements or edit the custom properties after the LTI component is installed through Dynamic registration.
As of July 2024, Canvas doesn’t offer to add or placements or edit the custom properties after the LTI component is installed through Dynamic registration. Therefore, the manual process is possible if you want to use a specific instance of Pria (public institution id) or better control the placements, such as to take advantage of the new ‘top_navigation’ placement, that places Pria in a drawer, similar to the wiki_page,
1

Navigate to Developer Keys Section

Log into your canvas instance, then go to the Admin -> Developer Keys section
2

Add LTI Key

Under the Developer Key menu, select LTI Key
3

Configure Key Settings

  • In Key Name, enter 
    Pria LTI
  • In Owner Email, enter the admin email
  • In Redirect URLs, add the following URLs: 
    https://prialti.praxislxp.com
https://prialti.praxislxp.com/resources
https://prialti.praxislxp.com/launch
  • In the Method dropdown, select Paste Json. Copy the JSON below and paste into the LTI 1.3 Configuration field. 
{
  "title": "Pria LTI",
  "scopes": [
    "https://purl.imsglobal.org/spec/lti-ags/scope/lineitem",
    "https://purl.imsglobal.org/spec/lti-ags/scope/lineitem.readonly",
    "https://purl.imsglobal.org/spec/lti-ags/scope/result.readonly",
    "https://purl.imsglobal.org/spec/lti-ags/scope/score",
    "https://purl.imsglobal.org/spec/lti-nrps/scope/contextmembership.readonly",
    "https://canvas.instructure.com/lti/public_jwk/scope/update",
    "https://canvas.instructure.com/lti/account_lookup/scope/show",
    "https://canvas.instructure.com/lti-ags/progress/scope/show"
  ],
  "extensions": [
    {
      "domain": "praxislxp.com",
      "platform": "canvas.instructure.com",
      "settings": {
        "text": "Pria LTI",
        "icon_url": "https://pria.praxislxp.com/logo192.png",
        "platform": "canvas.instructure.com",
        "placements": [
          {
            "text": "Pria LTI",
            "icon_url": "https://pria.praxislxp.com/logo192.png",
            "placement": "account_navigation",
            "message_type": "LtiResourceLinkRequest",
            "target_link_uri": "https://prialti.praxislxp.com"
          },
          {
            "text": "Manual Pria LTI",
            "icon_url": "https://pria.praxislxp.com/logo192.png",
            "placement": "link_selection",
            "message_type": "LtiDeepLinkingRequest",
            "target_link_uri": "https://prialti.praxislxp.com"
          },
          {
            "text": "Manual Pria LTI",
            "icon_url": "https://pria.praxislxp.com/logo192.png",
            "placement": "wiki_page_menu",
            "message_type": "LtiResourceLinkRequest",
            "target_link_uri": "https://prialti.praxislxp.com"
          },
          {
            "text": "Manual Pria LTI",
            "icon_url": "https://pria.praxislxp.com/logo192.png",
            "placement": "top_navigation",
            "message_type": "LtiResourceLinkRequest",
            "target_link_uri": "https://prialti.praxislxp.com/launch"
          }
        ]
      },
      "privacy_level": "public"
    }
  ],
  "description": "Praxis AI, Pria LTI",
  "custom_fields": {
    "priainstitutionid": "f831501f-b645-481a-9cbb-331509aa....",
    "userid": "$Canvas.user.id",
    "courseid": "$Canvas.course.id",
    "coursename": "$Canvas.course.name",
    "partnerid": "$Canvas.account.id",
    "partnername": "$Canvas.account.name"
  },
  "public_jwk_url": "https://prialti.praxislxp.com/keys",
  "target_link_uri": "https://prialti.praxislxp.com",
  "oidc_initiation_url": "https://prialti.praxislxp.com/login"
}
4
After pasting the JSON, and when you toggle back to Manual Entry, you will see that the placements include the new top_navigation
Update your priainstitutionid custom property to a valid instance id or leave AS IS to use the Digital Twin
A complete guide to the manual setup is available on a Google Doc at https://docs.google.com/document/d/1-HSJTOIjg9C5LFIVeO0bw_Ntnc0rOyKe9I-5djf8L3M/edit?usp=sharing

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Registering the App

1

View App Configuration

  • Navigate to the Admin -> Settings -> Apps
  • Click the View App Configuration to add the component to your instance.
2

View App Configuration

In the App List screen, click on + App to add an application
In the Add App modal, select By Client ID Paste the Client ID of Pria you copied in the clipboard in the step above, ex: 243790000000000223 Canvas will find the LTI Application corresponding to the client ID you entered. In the Add App modal, click Install Note: If you re-install Pria, you will see this dialog. You can click Yes to install the new instance. This instance is different from the previous one since this new instance supports the new onboarding Digital Twin workflow. Your Pria LTI application is now installed in your instance. It takes several minutes for Canvas to make this application available as a placement. Create your new Digital Twin This process is for Teachers, and expects that Pria has been registered as an LTI Application by your Administrator through the steps above. Placing Pria in your Course To start, go to your Dashboard then select your course. In your course, click on the + button inside a module to Add Pria as an activity In the Add Item to Module modal dialog, select External Tool Select Pria LTI from the list of LTI Tools In the Link Resource modal, select PRIA, Praxis AI, then click the Submit button Back in the Add Item module, click the Add Item button Pria has been added to your module. Click on Pria to launch. Pria will open up unless it has been defined to launch in a separate window.

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Create your Digital Twin

When Pria is launched for the first time by an administrator or teacher, click on the + Digital Twin button to create new and personalized instance or Pria In the New Digital Twin dialog, enter a name for your twin, ex: Bob, a picture URL that is accessible on the internet (without CORS issues), and a picture to use for large backgrounds An A.I. prompt that personalizes your character (more information is available in the Faculty Guide ) Click Let’s GO to finish the creation of your new instance. You are now in your digital twin instance: Congratulations, you just created your very first digital twin. Anytime you or your students will click on Pria, they will access this instance directly. When you place Pria LTI in another course, or create a different instance, the onboarding wizard will offer to reuse one of your instances or create a new one for this placement. Selecting an existing instance will associate this placement to the instance. This can not be changed later. To change it, remove the Pria activity, and create a new one.

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More Personalization Options

More information on Admin functions is available in the Faculty Guide to your Digital Twin at https://learning.praxislxp.com/praxis/faculty-guide-to-your-digital-twin/#GPT_and_Personalization Click on the GPT and Personalization Tab. This page is where you can update any personalizations for your digital twin. Don’t forget to click the Update button to save your changes.

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Student Access

Students will automatically join your digital twin once you have placed Pria in your course, launched and completed the creation wizard the first time. If your student attempt to access Pria, but your instance has not been created, they will receive this message When the browser is running in Incognito mode, or Cookies are been blocked,due to recent updates in browsers and how they handle third party cookies, it may prevent LTI from launching properly. As a result you can receive an error similar to the one below:
You may need to allow third party cookies and retry.

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Troubleshooting

IssueSolution
”Invalid redirect” during launchVerify all Redirect URLs are registered exactly as shown in the configuration. Check for trailing slashes or typos.
LTI tool not appearing in courseEnsure the Developer Key is enabled (toggle “ON” in Developer Keys). Verify the External Tool was added at the correct account/course level.
”Unregistered” or “Unknown Client” errorsConfirm the Client ID from Canvas matches what’s configured in Pria. Re-check the registration URL.
Third-party cookie errorsCanvas LTI requires cookies. Users must allow third-party cookies or add exceptions for prialti.praxislxp.com. Try disabling Incognito/Private mode.
Students can’t access but teachers canCheck the External Tool visibility settings. Ensure the tool is published and not restricted to specific roles.
Deep linking not creating contentVerify the link_selection placement is enabled. Check that the course allows external tool content in modules.
Custom parameters not passingFor manual registration, ensure custom fields are set in the Developer Key JSON, not just the External Tool config.
As of July 2024, Canvas doesn’t allow editing placements or custom properties after Dynamic Registration. If you need changes, delete and re-register the tool, or use Manual Registration instead.
Test LTI launches in a non-Incognito browser window first. If it works there but fails in Incognito, the issue is cookie-related.

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What’s Next?

Enable Canvas Tools

Configure your Digital Twin to interact with Canvas APIs for course-aware responses.

Configure Your Digital Twin

Customize AI behavior, system prompts, and available tools.