[Good] Compared to a lot of API providers, Google API may refund up to 6 months or API fees in case of issue, to the extent permitted by law.

[mmedjaoui]

from https://developers.google.com/terms/    

"LIMITATION OF LIABILITY

WHEN PERMITTED BY LAW, GOOGLE, AND GOOGLE'S SUPPLIERS AND DISTRIBUTORS, WILL NOT BE RESPONSIBLE FOR LOST PROFITS, REVENUES, OR DATA, FINANCIAL LOSSES OR INDIRECT, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES. TO THE EXTENT PERMITTED BY LAW, THE TOTAL LIABILITY OF GOOGLE, AND ITS SUPPLIERS AND DISTRIBUTORS, FOR ANY CLAIM UNDER THESE TERMS, INCLUDING FOR ANY WARRANTIES THAT MAY NOT LEGALLY BE EXCLUDED, IS LIMITED TO THE AMOUNT YOU PAID US TO USE THE APIS (OR, IF WE CHOOSE, TO SUPPLYING YOU THE APIS AGAIN) DURING THE SIX MONTHS PRIOR TO THE EVENT GIVING RISE TO THE LIABILITY. NOTHING IN THESE TERMS LIMITS YOUR RESPONSIBILITY FOR INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN ALL CASES, GOOGLE, AND ITS SUPPLIERS AND DISTRIBUTORS, WILL NOT BE LIABLE FOR ANY LOSS OR DAMAGE THAT IS NOT REASONABLY FORESEEABLE. "