how to hack zearn
Number Gym(dont copy this part, only script below beginning in javascript: ):
javascript:var script=document.createElement('script');script.type='text/javascript';script.src='https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js';document.getElementsByTagName('head')[0].appendChild(script);var token = $('meta[name="csrf-token"]').attr('content');var s = $("a").attr("href");var pre = s.split("/").slice(-1).join("/");var id = parseInt(pre);fetch("/user_events.json", {  "headers": {    "accept": "application/json, text/plain, */*",    "accept-language": "en-US,en;q=0.9",    "content-type": "application/json;charset=UTF-8",    "sec-fetch-dest": "empty",    "sec-fetch-mode": "cors",    "sec-fetch-site": "same-origin",    "x-csrf-token": token,    "x-requested-with": "XMLHttpRequest"  },  "referrer": "/number_gym_activities/152",  "referrerPolicy": "no-referrer-when-downgrade",  "body": "{\"event_type\":\"nga_completed\",\"subject_id\":" + id + "}",  "method": "POST",  "mode": "cors",  "credentials": "include"}).then(function(response) {if (response.status == 404){alert("Number gym activity does not exist.")}else if (response.status == 201) {window.location.reload()}});
Fluency:
javascript:var script=document.createElement('script');script.type='text/javascript';script.src='https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js';document.getElementsByTagName('head')[0].appendChild(script);var token = $('meta[name="csrf-token"]').attr('content');var s = $("a").attr("href");var pre = s.split("/").slice(-1).join("/");var id = parseInt(pre);fetch("/user_events.json", {  "headers": {    "accept": "application/json, text/plain, */*",    "accept-language": "en-US,en;q=0.9",    "content-type": "application/json;charset=UTF-8",    "sec-fetch-dest": "empty",    "sec-fetch-mode": "cors",    "sec-fetch-site": "same-origin",    "x-csrf-token": token,    "x-requested-with": "XMLHttpRequest"  },  "referrer": "https://www.zearn.org/basic_fluencies/771",  "referrerPolicy": "no-referrer-when-downgrade",  "body": "{\"event_type\":\"fluency_completed\",\"subject_id\":"+ id +",\"duration\":67.952}",  "method": "POST",  "mode": "cors",  "credentials": "include"}).then(function(response) {if (response.status == 404){alert("Fluency does not exist.")}else if (response.status == 201) {window.location.reload()}});
Learning lab(works on other things like math chat and z squad):
javascript:var script=document.createElement('script');script.type='text/javascript';script.src='https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js';document.getElementsByTagName('head')[0].appendChild(script);var token = $('meta[name="csrf-token"]').attr('content');var s = $("a").attr("href");var pre = s.split("/").slice(-1).join("/");var id = parseInt(pre);fetch("/user_events.json", {  "headers": {    "accept": "application/json, text/plain, */*",    "accept-language": "en-US,en;q=0.9",    "content-type": "application/json;charset=UTF-8",    "sec-fetch-dest": "empty",    "sec-fetch-mode": "cors",    "sec-fetch-site": "same-origin",    "x-csrf-token": token,    "x-requested-with": "XMLHttpRequest"  },  "referrer": "https://www.zearn.org/learning_labs/715",  "referrerPolicy": "no-referrer-when-downgrade",  "body": "{\"event_type\":\"lesson_completed\",\"subject_id\":" + id + "}",  "method": "POST",  "mode": "cors",  "credentials": "include"}).then(function(response) {if (response.status == 404){alert("Learning Lab does not exist.")}else if (response.status == 201) {window.location.reload()}});
Tower of Power:
javascript:var script=document.createElement('script');script.type='text/javascript';script.src='https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js';document.getElementsByTagName('head')[0].appendChild(script);var token = $('meta[name="csrf-token"]').attr('content');var s = $("a").attr("href");var pre = s.split("/").slice(-2).join("/");var id = parseInt(pre);fetch("/user_events.json", {  "headers": {    "accept": "application/json, text/plain, */*",    "accept-language": "en-US,en;q=0.9",    "content-type": "application/json;charset=UTF-8",    "sec-fetch-dest": "empty",    "sec-fetch-mode": "cors",    "sec-fetch-site": "same-origin",    "x-csrf-token": token,    "x-requested-with": "XMLHttpRequest"  },  "referrer": "https://www.zearn.org/towers/848",  "referrerPolicy": "no-referrer-when-downgrade",  "body": "{\"event_type\":\"tower_completed\",\"subject_id\":" + id + ",\"success\":true}",  "method": "POST",  "mode": "cors",  "credentials": "include"}).then(function(response) {if (response.status == 404){}else if (response.status == 201) {window.location.reload()}});
Zearn kindergarden hack(for kindergardeners):
javascript:var script=document.createElement('script');script.type='text/javascript';script.src='https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js';document.getElementsByTagName('head')[0].appendChild(script);var token = $('meta[name="csrf-token"]').attr('content');var s = $("a").attr("href");var pre = s.split("/").slice(-1).join("/");var id = parseInt(pre);fetch("/user_events.json", {  "headers": {    "accept": "application/json, text/plain, */*",    "accept-language": "en-US,en;q=0.9,hi;q=0.8",    "content-type": "application/json;charset=UTF-8",    "sec-fetch-dest": "empty",    "sec-fetch-mode": "cors",    "sec-fetch-site": "same-origin",    "x-csrf-token": token,    "x-requested-with": "XMLHttpRequest"  },  "referrer": "https://www.zearn.org/k_activities/9",  "referrerPolicy": "no-referrer-when-downgrade",  "body": "{\"event_type\":\"ka_completed\",\"subject_id\":" + id +"}",  "method": "POST",  "mode": "cors",  "credentials": "include"}).then(function(response) {if (response.status == 404){}else if (response.status == 201) {window.location.reload()}});
how to hack zearn