diff --git a/openapi.json b/openapi.json
new file mode 100644
index 0000000..2e5402d
--- /dev/null
+++ b/openapi.json
@@ -0,0 +1,4 @@
+{
+  "message": "Invalid API key",
+  "hint": "Only the `service_role` API key can be used for this endpoint."
+}
\ No newline at end of file
diff --git a/src/repositories/appointmentRepository.js b/src/repositories/appointmentRepository.js
index e5f217b..63e486f 100644
--- a/src/repositories/appointmentRepository.js
+++ b/src/repositories/appointmentRepository.js
@@ -1,50 +1,30 @@
-import { apiConfig, apiEndpoint, getAuthenticatedHeaders } from '../config/api.js'
+import { apiConfig, getAuthenticatedHeaders } from '../config/api.js'
 import { appointmentMapper } from '../mappers/appointmentMapper.js'
-import { fetchJsonWithFallback, normalizeCollection, normalizeItem } from './repositoryUtils.js'
 
 export const appointmentRepository = {
   async getAll() {
-    const data = await fetchJsonWithFallback(
-      [
-        {
-          url: apiEndpoint('/agendamentos'),
-          options: { headers: getAuthenticatedHeaders() },
-        },
-        {
-          url: `${apiConfig.restUrl}/appointments?select=*,patients(full_name),doctors(name)`,
-          options: { headers: getAuthenticatedHeaders() },
-        },
-      ],
-      'Erro ao buscar agendamentos.',
-    )
-
-    return normalizeCollection(data, ['agendamentos', 'appointments', 'data']).map(appointmentMapper.toUi)
+    const response = await fetch(`${apiConfig.restUrl}/appointments?select=*,patients(full_name),doctors(full_name)`, {
+      headers: getAuthenticatedHeaders()
+    })
+    
+    if (!response.ok) throw new Error('Erro ao buscar agendamentos.')
+    
+    const data = await response.json()
+    return (Array.isArray(data) ? data : []).map(appointmentMapper.toUi)
   },
 
   async create(uiData) {
-    const data = await fetchJsonWithFallback(
-      [
-        {
-          url: apiEndpoint('/agendamentos'),
-          options: {
-            method: 'POST',
-            headers: getAuthenticatedHeaders(),
-            body: JSON.stringify(appointmentMapper.toApi(uiData)),
-          },
-        },
-        {
-          url: `${apiConfig.restUrl}/appointments`,
-          options: {
-            method: 'POST',
-            headers: getAuthenticatedHeaders({ Prefer: 'return=representation' }),
-            body: JSON.stringify(appointmentMapper.toApi(uiData, 'supabase')),
-          },
-        },
-      ],
-      'Falha ao criar o agendamento.',
-    )
+    const response = await fetch(`${apiConfig.restUrl}/appointments`, {
+      method: 'POST',
+      headers: getAuthenticatedHeaders({ Prefer: 'return=representation' }),
+      body: JSON.stringify(appointmentMapper.toApi(uiData, 'supabase')),
+    })
 
-    return appointmentMapper.toUi(normalizeItem(data, ['agendamento', 'appointment', 'data']))
+    if (!response.ok) throw new Error('Falha ao criar o agendamento.')
+
+    const data = await response.json()
+    const item = Array.isArray(data) ? data[0] : data
+    return appointmentMapper.toUi(item)
   },
 
   getTodayTimeline() {
diff --git a/src/repositories/professionalRepository.js b/src/repositories/professionalRepository.js
index 11242f3..f490a9b 100644
--- a/src/repositories/professionalRepository.js
+++ b/src/repositories/professionalRepository.js
@@ -1,23 +1,15 @@
-import { apiConfig, apiEndpoint, getAuthenticatedHeaders } from '../config/api.js'
-import { fetchJsonWithFallback, normalizeCollection } from './repositoryUtils.js'
+import { apiConfig, getAuthenticatedHeaders } from '../config/api.js'
 
 export const professionalRepository = {
   async getAll() {
-    const data = await fetchJsonWithFallback(
-      [
-        {
-          url: apiEndpoint('/listar-medicos'),
-          options: { headers: getAuthenticatedHeaders() },
-        },
-        {
-          url: `${apiConfig.restUrl}/doctors`,
-          options: { headers: getAuthenticatedHeaders() },
-        },
-      ],
-      'Erro ao buscar medicos.',
-    )
-
-    return normalizeCollection(data, ['medicos', 'doctors', 'professionals', 'data']).map(mapProfessional)
+    const response = await fetch(`${apiConfig.restUrl}/doctors`, {
+      headers: getAuthenticatedHeaders()
+    })
+    
+    if (!response.ok) throw new Error('Erro ao buscar medicos.')
+    
+    const data = await response.json()
+    return (Array.isArray(data) ? data : []).map(mapProfessional)
   },
 
   getCoverageMap() {
diff --git a/test.mjs b/test.mjs
new file mode 100644
index 0000000..cec8a82
--- /dev/null
+++ b/test.mjs
@@ -0,0 +1,11 @@
+import { apiConfig } from './src/config/api.js';
+
+async function test() {
+  const url = `${apiConfig.restUrl}/appointments?select=*,patients(full_name),doctors(name)`;
+  const res = await fetch(url, { headers: { apikey: apiConfig.anonKey }});
+  const text = await res.text();
+  console.log('Status:', res.status);
+  console.log('Response:', text);
+}
+
+test().catch(console.error);
diff --git a/test2.mjs b/test2.mjs
new file mode 100644
index 0000000..525ee66
--- /dev/null
+++ b/test2.mjs
@@ -0,0 +1,11 @@
+const url = "https://yuanqfswhberkoevtmfr.supabase.co/rest/v1/appointments?select=*,patients(full_name),doctors(name)";
+const key = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6Inl1YW5xZnN3aGJlcmtvZXZ0bWZyIiwicm9sZSI6ImFub24iLCJpYXQiOjE3NTQ5NTQzNjksImV4cCI6MjA3MDUzMDM2OX0.g8Fm4XAvtX46zifBZnYVH4tVuQkqUH6Ia9CXQj4DztQ";
+
+async function test() {
+  const res = await fetch(url, { headers: { apikey: key, Authorization: "Bearer " + key }});
+  const text = await res.text();
+  console.log('Status:', res.status);
+  console.log('Response:', text);
+}
+
+test().catch(console.error);
diff --git a/test3.mjs b/test3.mjs
new file mode 100644
index 0000000..627c69c
--- /dev/null
+++ b/test3.mjs
@@ -0,0 +1,14 @@
+const url1 = "https://yuanqfswhberkoevtmfr.supabase.co/rest/v1/doctors?select=*&limit=1";
+const url2 = "https://yuanqfswhberkoevtmfr.supabase.co/rest/v1/patients?select=*&limit=1";
+const url3 = "https://yuanqfswhberkoevtmfr.supabase.co/rest/v1/appointments?select=*&limit=1";
+const key = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6Inl1YW5xZnN3aGJlcmtvZXZ0bWZyIiwicm9sZSI6ImFub24iLCJpYXQiOjE3NTQ5NTQzNjksImV4cCI6MjA3MDUzMDM2OX0.g8Fm4XAvtX46zifBZnYVH4tVuQkqUH6Ia9CXQj4DztQ";
+
+async function test() {
+  const reqs = [url1, url2, url3].map(u => fetch(u, { headers: { apikey: key, Authorization: "Bearer " + key }}));
+  const res = await Promise.all(reqs);
+  for(const r of res) {
+    console.log(r.url, await r.text());
+  }
+}
+
+test().catch(console.error);
diff --git a/test4.mjs b/test4.mjs
new file mode 100644
index 0000000..52c1521
--- /dev/null
+++ b/test4.mjs
@@ -0,0 +1,13 @@
+const url = "https://yuanqfswhberkoevtmfr.supabase.co/rest/v1/";
+const key = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6Inl1YW5xZnN3aGJlcmtvZXZ0bWZyIiwicm9sZSI6ImFub24iLCJpYXQiOjE3NTQ5NTQzNjksImV4cCI6MjA3MDUzMDM2OX0.g8Fm4XAvtX46zifBZnYVH4tVuQkqUH6Ia9CXQj4DztQ";
+
+async function test() {
+  const res = await fetch(url, { headers: { apikey: key }});
+  const json = await res.json();
+  
+  console.log("Doctors columns:", Object.keys(json.definitions.doctors.properties));
+  console.log("Patients columns:", Object.keys(json.definitions.patients.properties));
+  console.log("Appointments columns:", Object.keys(json.definitions.appointments.properties));
+}
+
+test().catch(console.error);
diff --git a/test5.mjs b/test5.mjs
new file mode 100644
index 0000000..de45f95
--- /dev/null
+++ b/test5.mjs
@@ -0,0 +1,11 @@
+import fs from 'fs';
+const url = "https://yuanqfswhberkoevtmfr.supabase.co/rest/v1/";
+const key = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6Inl1YW5xZnN3aGJlcmtvZXZ0bWZyIiwicm9sZSI6ImFub24iLCJpYXQiOjE3NTQ5NTQzNjksImV4cCI6MjA3MDUzMDM2OX0.g8Fm4XAvtX46zifBZnYVH4tVuQkqUH6Ia9CXQj4DztQ";
+
+async function test() {
+  const res = await fetch(url, { headers: { apikey: key }});
+  const json = await res.json();
+  fs.writeFileSync('openapi.json', JSON.stringify(json, null, 2));
+}
+
+test().catch(console.error);