diff --git a/Manifest.toml b/Manifest.toml
index 40b5530..dd0da66 100644
--- a/Manifest.toml
+++ b/Manifest.toml
@@ -96,6 +96,18 @@ git-tree-sha1 = "f80ea86cb88db337a1906e245e495592f0b5cc25"
 uuid = "0ef565a4-170c-5f04-8de2-149903a85f3d"
 version = "0.5.0"
 
+[[HTTP]]
+deps = ["Base64", "Dates", "IniFile", "MbedTLS", "Sockets"]
+git-tree-sha1 = "5c49dab19938b119fe204fd7d7e8e174f4e9c68b"
+uuid = "cd3eb016-35fb-5094-929b-558a96fad6f3"
+version = "0.8.8"
+
+[[IniFile]]
+deps = ["Test"]
+git-tree-sha1 = "098e4d2c533924c921f9f9847274f2ad89e018b8"
+uuid = "83e8ac13-25f8-5344-8a64-a9f2b223428f"
+version = "0.5.0"
+
 [[InteractiveUtils]]
 deps = ["Markdown"]
 uuid = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
@@ -106,6 +118,12 @@ git-tree-sha1 = "b34d7cef7b337321e97d22242c3c2b91f476748e"
 uuid = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
 version = "0.21.0"
 
+[[JSONSchema]]
+deps = ["BinaryProvider", "HTTP", "JSON"]
+git-tree-sha1 = "b0a7f9328967df5213691d318a03cf70ea8c76b1"
+uuid = "7d188eb4-7ad8-530c-ae41-71a32a6d4692"
+version = "0.2.0"
+
 [[JuMP]]
 deps = ["Calculus", "DataStructures", "ForwardDiff", "LinearAlgebra", "MathOptInterface", "NaNMath", "Random", "SparseArrays", "Statistics"]
 git-tree-sha1 = "ba7f96010ed290d77d5c941c32e5df107ca688a4"
@@ -153,6 +171,12 @@ git-tree-sha1 = "3bf2e534e635df810e5f4b4f1a8b6de9004a0d53"
 uuid = "fdba3010-5040-5b88-9595-932c9decdf73"
 version = "0.7.7"
 
+[[MbedTLS]]
+deps = ["BinaryProvider", "Dates", "Libdl", "Random", "Sockets"]
+git-tree-sha1 = "85f5947b53c8cfd53ccfa3f4abae31faa22c2181"
+uuid = "739be429-bea8-5141-9913-cc70e7f3736d"
+version = "0.7.0"
+
 [[Mmap]]
 uuid = "a63ad114-7e13-5084-954f-fe012c677804"
 
diff --git a/Project.toml b/Project.toml
index 1d50f4e..214d09e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -7,6 +7,7 @@ version = "1.0.0"
 Cbc = "9961bab8-2fa3-5c5a-9d89-47fab24efd76"
 Geodesy = "0ef565a4-170c-5f04-8de2-149903a85f3d"
 JSON = "682c06a0-de6a-54ab-a142-c8b1cf79cde6"
+JSONSchema = "7d188eb4-7ad8-530c-ae41-71a32a6d4692"
 JuMP = "4076af6c-e467-56ae-b986-b466b2749572"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
diff --git a/src/instance.jl b/src/instance.jl
index f231d3b..9b073ff 100644
--- a/src/instance.jl
+++ b/src/instance.jl
@@ -1,7 +1,7 @@
 # Copyright (C) 2020 Argonne National Laboratory
 # Written by Alinson Santos Xavier <axavier@anl.gov>
 
-using Printf, JSON
+using Printf, JSON, JSONSchema
 import Base.getindex, Base.time
 
 """
@@ -52,7 +52,15 @@ Example
 
 """    
 function readfile(path::String)::ReverseManufacturingInstance
+    basedir = dirname(@__FILE__)
     json = JSON.parsefile(path)
+    schema = Schema(JSON.parsefile("$basedir/schemas/input.json"))
+    
+    validation_results = JSONSchema.validate(json, schema)
+    if validation_results !== nothing
+        println(validation_results)
+        throw("Invalid input file")
+    end
     
     for plant_name in keys(json["plants"])
         "outputs" in keys(json["plants"][plant_name]) || continue