diff --git a/test/test_json/data/20241219-test-braiins.json b/test/test_json/data/20241219-test-braiins.json
new file mode 100644
index 0000000..f670655
--- /dev/null
+++ b/test/test_json/data/20241219-test-braiins.json
@@ -0,0 +1,20 @@
+{
+    "username": "bd123",
+    "btc": {
+        "all_time_reward": "0.00012536",
+        "hash_rate_unit": "Gh/s",
+        "hash_rate_5m": 2586.8588,
+        "hash_rate_60m": 2628.4603,
+        "hash_rate_24h": 120.2364,
+        "hash_rate_yesterday": 0,
+        "low_workers": 0,
+        "off_workers": 5,
+        "ok_workers": 1,
+        "dis_workers": 1,
+        "current_bad": "0.00000006",
+        "shares_5m": 180690,
+        "shares_60m": 2203150,
+        "shares_24h": 2418744,
+        "shares_yesterday": 0
+    }
+}
\ No newline at end of file
diff --git a/test/test_json/data/20241219-test-ocean-api.json b/test/test_json/data/20241219-test-ocean-api.json
new file mode 100644
index 0000000..8718365
--- /dev/null
+++ b/test/test_json/data/20241219-test-ocean-api.json
@@ -0,0 +1 @@
+{"result":{"snap_type":"user","snap_ts":"1734565260","shares_60s":"9988210688","shares_300s":"49864507392","hashrate_60s":"714983970841960960","hashrate_300s":"713888094932634112","lastest_share_ts":"1734565263","shares_in_tides":"159369973182353","estimated_earn_next_block":"0.58907916","estimated_bonus_earn_next_block":"0.00000000","estimated_total_earn_next_block":"0.58907916","estimated_payout_next_block":"0.58907916","unpaid":"0.00000000"}}
\ No newline at end of file
diff --git a/test/test_json/data/bitaxe_2_3_0.json b/test/test_json/data/bitaxe_2_3_0.json
new file mode 100644
index 0000000..194e370
--- /dev/null
+++ b/test/test_json/data/bitaxe_2_3_0.json
@@ -0,0 +1,41 @@
+{
+    "power": 15.710000038146973,
+    "voltage": 5178.75,
+    "current": 3028.75,
+    "temp": 72,
+    "vrTemp": 0,
+    "hashRate": 690.13493843712524,
+    "bestDiff": "6.78G",
+    "bestSessionDiff": "6.78G",
+    "isUsingFallbackStratum": 0,
+    "freeHeap": 145052,
+    "coreVoltage": 1200,
+    "coreVoltageActual": 1201,
+    "frequency": 500,
+    "ssid": "BTClock",
+    "macAddr": "DC:DB:0C:13:10:F8",
+    "hostname": "bitaxe1-white",
+    "wifiStatus": "Connected!",
+    "sharesAccepted": 514214,
+    "sharesRejected": 293,
+    "uptimeSeconds": 2084435,
+    "asicCount": 1,
+    "smallCoreCount": 1276,
+    "ASICModel": "BM1368",
+    "stratumURL": "pool.noderunners.network",
+    "fallbackStratumURL": "pool.noderunners.network",
+    "stratumPort": 1337,
+    "fallbackStratumPort": 7331,
+    "stratumUser": "bc1.BitAxe1",
+    "fallbackStratumUser": "bc1.BitAxe1",
+    "version": "v2.3.0",
+    "boardVersion": "401",
+    "runningPartition": "ota_1",
+    "flipscreen": 1,
+    "overheat_mode": 0,
+    "invertscreen": 0,
+    "invertfanpolarity": 1,
+    "autofanspeed": 0,
+    "fanspeed": 100,
+    "fanrpm": 5850
+}
\ No newline at end of file
diff --git a/test/test_json/test_bitaxe_parser.hpp b/test/test_json/test_bitaxe_parser.hpp
new file mode 100644
index 0000000..fa0b7f4
--- /dev/null
+++ b/test/test_json/test_bitaxe_parser.hpp
@@ -0,0 +1,15 @@
+#pragma once
+
+// Mock the Arduino String class if needed
+#ifndef ARDUINO
+class String {
+public:
+    String(const char* str) : data(str) {}
+    const char* c_str() const { return data; }
+private:
+    const char* data;
+};
+#endif
+
+// Declare only the function you want to test
+void bitaxeParseApiResponse(String apiResponse);
diff --git a/test/test_json/test_datasources.cpp b/test/test_json/test_datasources.cpp
new file mode 100644
index 0000000..c2c48a5
--- /dev/null
+++ b/test/test_json/test_datasources.cpp
@@ -0,0 +1,68 @@
+#include <unity.h>
+#include <ArduinoJson.h>
+#include <fstream>
+#include <string>
+#include "test_bitaxe_parser.hpp"
+
+void setUp(void)
+{
+    // Setup code
+}
+
+void tearDown(void)
+{
+    // Cleanup code
+}
+
+void test_bitaxe_api(void)
+{
+    JsonDocument doc;
+
+    std::ifstream file("test/test_json/data/bitaxe_2_3_0.json");
+    std::string json((std::istreambuf_iterator<char>(file)),
+                     std::istreambuf_iterator<char>());
+
+    DeserializationError error = deserializeJson(doc, json);
+    std::string bitaxeHashrate = std::to_string(static_cast<int>(std::round(doc["hashRate"].as<float>())));
+    std::string bitaxeBestDiff = doc["bestDiff"].as<std::string>();
+    String testInput = "{\"test\":\"data\"}";
+
+    bitaxeParseApiResponse(testInput);
+
+    TEST_ASSERT_EQUAL_STRING(bitaxeHashrate.c_str(), std::string("690").c_str());
+}
+
+void test_braiins_api(void)
+{
+    JsonDocument doc;
+
+    std::ifstream file("test/test_json/data/20241219-test-braiins.json");
+    std::string json((std::istreambuf_iterator<char>(file)),
+                     std::istreambuf_iterator<char>());
+
+    DeserializationError error = deserializeJson(doc, json);
+    
+    TEST_ASSERT_EQUAL(DeserializationError::Ok, error.code());
+}
+
+void test_ocean_api(void)
+{
+    JsonDocument doc;
+
+    std::ifstream file("test/test_json/data/20241219-test-ocean-api.json");
+    std::string json((std::istreambuf_iterator<char>(file)),
+                     std::istreambuf_iterator<char>());
+
+    DeserializationError error = deserializeJson(doc, json);
+    
+    TEST_ASSERT_EQUAL(DeserializationError::Ok, error.code());
+}
+
+int main(void)
+{
+    UNITY_BEGIN();
+    RUN_TEST(test_bitaxe_api);
+    RUN_TEST(test_braiins_api);
+    RUN_TEST(test_ocean_api);
+    return UNITY_END();
+}