PostgREST yog lub vev xaib qhib uas tso cai rau koj tig txhua qhov chaw khaws cia hauv PostgreSQL DBMS rau hauv RESTful API tag nrho. Qhov kev txhawb siab rau kev sau ntawv PostgREST yog qhov kev xav kom deb ntawm phau ntawv CRUD programming, vim qhov no tuaj yeem ua rau muaj teeb meem: kev sau ntawv kev lag luam feem ntau duplicates, tsis quav ntsej, lossis ua rau cov qauv database nyuaj; object-relational mapping (ORM mapping) yog ib qho kev paub tsis meej uas ua rau qeeb qeeb thiab tuaj yeem ua rau muaj teeb meem kev nyab xeeb. PostgREST yog sau rau hauv Haskell thiab muaj ntawv tso cai raws li MIT daim ntawv tso cai.