Is it acceptable to be listed as an author based only on technical assitance?
The criteria for authorship may somehow vary by discipline. The International Committee of Medical Journal Editors (ICMJE) stipulates four criteria that must be met if someone is to deserve authorship.


  
  Substantial contributions to the conception or design of the work; or the acquisition, analysis, or interpretation of data for the work;
  AND
  Drafting the work or revising it critically for important intellectual content; AND
  Final approval of the version to be published; AND
  Agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the
  work are appropriately investigated and resolved.
  


The ICMJE guideline further states that contributors fulfilling only less than four of the criteria should not be listed as authors but should be acknowledged.

A COPE discussion document about authorship also raises authorship criteria that are considered in different disciplines. 

You may decide whether you qualify to be listed as an author based on the different guidelines available, probably based on the one closest to your discipline.