diff --git a/.github/workflows/check-api.yml b/.github/workflows/check-api.yml
index a5361e6fd..5487bb8a4 100644
--- a/.github/workflows/check-api.yml
+++ b/.github/workflows/check-api.yml
@@ -2,81 +2,39 @@ name: Check access to API
 
 on:
   workflow_dispatch:
-    inputs:
-      environment:
-        type: choice
-        description: Select the API environment
-        options: [all, prod, qa]
   schedule:
     - cron: "0 12 * * *"
 
 jobs:
   check-api:
     runs-on: ubuntu-latest
-    env:
-      SHOULD_RUN: |
-        ${{ github.event_name == 'schedule'
-        || github.event.inputs.environment == 'all'
-        || github.event.inputs.environment == matrix.name
-        }}
     strategy:
       fail-fast: false
       matrix:
-        include:
-          - name: prod
-            cert: API_CHECK_PROD_CERT
-            key: API_CHECK_PROD_KEY
-            ca-cert: API_CHECK_PROD_CA_CERT
-            url: API_CHECK_PROD_URL
-            data: API_CHECK_PROD_DATA
-
-          - name: qa
-            cert: API_CHECK_QA_CERT
-            key: API_CHECK_QA_KEY
-            ca-cert: API_CHECK_QA_CA_CERT
-            url: API_CHECK_QA_URL
-            data: API_CHECK_QA_DATA
-
-    name: Check API endpoint (${{ matrix.name }})
+        participant: [mst, sacrt, sbmtd]
+        env: [qa, prod]
     steps:
-      - name: Echo workflow run information
-        run: |
-          echo "Triggering event name: ${{ github.event_name }}, \
-          APIs to check: ${{ github.event.inputs.environment }}"
+      - uses: actions/checkout@v4
+        with:
+          repository: "cal-itp/littlepay"
 
-      - name: Decode cert files
-        if: contains(env.SHOULD_RUN, 'true')
+      - name: Install the littlepay library
         run: |
-          mkdir $RUNNER_TEMP/${{ matrix.name }}
-          temp_dir=$RUNNER_TEMP/${{ matrix.name }}
-
-          cat > $temp_dir/cert.pem <<- EOM
-          ${{ secrets[matrix.cert] }}
-          EOM
-
-          cat > $temp_dir/key.pem <<- EOM
-          ${{ secrets[matrix.key] }}
-          EOM
+          python3 -m pip install --upgrade pip
+          pip install -e .
 
-          cat > $temp_dir/cacert.ca <<- EOM
-          ${{ secrets[matrix.ca-cert] }}
+      - name: Create config file and set config
+        run: |
+          cat > config.yaml <<- EOM
+          ${{ secrets.API_CHECK_CONFIG }}
           EOM
+          littlepay config config.yaml
 
-      - name: Call API endpoint
-        if: contains(env.SHOULD_RUN, 'true')
+      - name: Run littlepay to get access token
         run: |
-          temp_dir=$RUNNER_TEMP/${{ matrix.name }}
-          curl -i --url ${{ secrets[matrix.url] }} \
-          --header 'Accept: application/json' \
-          --header 'Content-type: application/json' \
-          --data '${{ secrets[matrix.data] }}' \
-          --cert $temp_dir/cert.pem \
-          --key $temp_dir/key.pem \
-          --cacert $temp_dir/cacert.ca > $temp_dir/payload.txt
-
-          test $(head -n 1 $temp_dir/payload.txt | grep -o 201)
+          littlepay switch env ${{ matrix.env }}
+          littlepay switch participant ${{ matrix.participant }}
 
-      # https://www.ravsam.in/blog/send-slack-notification-when-github-actions-fails/#using-notify-slack-action
       - name: Report failure to Slack
         if: always()
         uses: ravsamhq/notify-slack-action@v2