The API abstraction of a MILP solver that takes in a problem instance as specified using the lp-api model and solves the instance. Implementations of this API convert the model instance to ones for a specific solver, and abstract away as many specifics of the actual solver as feasible.

The implementation of the LPSolver API which uses the CPLEX Solver (https://www.ibm.com/products/ilog-cplex-optimization-studio) to solve MILP problems.

The implementation of the LPSolver API which uses the GLPK Solver (https://www.gnu.org/software/glpk/) to solve MILP problems.

The implementation of the LPSolver API which uses the Gurobi Solver (https://www.gurobi.com) to solve MILP problems.

The implementation of the LPSolver API which uses the HiGHS Solver (https://www.highs.dev) to solve MILP problems.

The implementation of the LPSolver API which uses the MOSEK Solver (https://www.mosek.com) to solve MILP problems.

The implementation of the LPSolver API which uses the ojAlgo Solver (https://www.ojalgo.org) to solve MILP problems.

The implementation of the LPSolver API which uses the SCIP Solver (https://www.scipopt.org) to solve MILP problems.