We don't have a built-in scheduler to start and stop a long-running service on a daily schedule. You could achieve this by using the Railway Public API or the CLI from a separate cron-based service to programmatically redeploy/remove your target service on a schedule. If your workload can be restructured as a task that runs and exits, our native Cron Jobs feature lets you trigger a service on a crontab schedule.

I tried to do something similar, with github actions, I defined the variables with my railway account, but when trying to turn off the service giving the value of 0 to "numReplicas" or "replicas" it did not work, it gave me an error

{"errors":[{"message":"Error in numReplicas - Invalid input","locations":[{"line":1,"column":12}],"path":["serviceInstanceUpdate"],"extensions":{"code":"INTERNAL_SERVER_ERROR"},"traceId":"2793694241070701294"}],"data":null}

run: |

curl -X POST https://backboard.railway.app/graphql/v2 \

-H "Authorization: Bearer $RAILWAY_TOKEN" \

-H "Content-Type: application/json" \

--data "{\"query\":\"mutation { serviceInstanceUpdate(serviceId: \\\"$SERVICE_ID\\\", environmentId: \\\"$ENV_ID\\\", input: { replicas: 0 }) }\"}"

Setting replicas to 0 via serviceInstanceUpdate is not supported. Instead, use the deploymentStop mutation to stop a running deployment and deploymentRedeploy (or environmentTriggersDeploy) to start it again, as documented in our Manage Deployments API guide.

excellent, I was able to do it

- name: Stop active deployment
        env:
          RAILWAY_TOKEN: ${{ secrets.RAILWAY_TOKEN }}
          PROJECT_ID: ${{ secrets.RAILWAY_PROJECT_ID }}
          ENV_ID: ${{ secrets.RAILWAY_ENVIRONMENT_ID }}
          SERVICE_ID: ${{ secrets.RAILWAY_SERVICE_ID }}
        run: |
          RESPONSE=$(curl -s -X POST https://backboard.railway.app/graphql/v2 \
            -H "Authorization: Bearer $RAILWAY_TOKEN" \
            -H "Content-Type: application/json" \
            -d "{\"query\":\"query { deployments(input: { projectId: \\\"$PROJECT_ID\\\", environmentId: \\\"$ENV_ID\\\", serviceId: \\\"$SERVICE_ID\\\" }, first: 10) { edges { node { id status } } } }\"}")

          echo "Response: $RESPONSE"

          DEPLOYMENT_ID=$(echo "$RESPONSE" | jq -r '.data.deployments.edges[] | select(.node.status == "SUCCESS") | .node.id' | head -1)

          if [ -z "$DEPLOYMENT_ID" ] || [ "$DEPLOYMENT_ID" = "null" ]; then
            echo "No hay deployment activo."
            exit 0
          fi

          echo "Deteniendo deployment: $DEPLOYMENT_ID"

          curl -s -X POST https://backboard.railway.app/graphql/v2 \
            -H "Authorization: Bearer $RAILWAY_TOKEN" \
            -H "Content-Type: application/json" \
            -d "{\"query\":\"mutation { deploymentStop(id: \\\"$DEPLOYMENT_ID\\\") }\"}"

          echo "Listo."