diff --git a/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/AuthorizationCode/index.js b/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/AuthorizationCode/index.js
index 8f3dc160..c409afae 100644
--- a/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/AuthorizationCode/index.js
+++ b/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/AuthorizationCode/index.js
@@ -6,9 +6,10 @@ import SingleLineEditor from 'components/SingleLineEditor';
 import { saveCollectionRoot, sendCollectionOauth2Request } from 'providers/ReduxStore/slices/collections/actions';
 import StyledWrapper from './StyledWrapper';
 import { inputsConfig } from './inputsConfig';
-import { updateCollectionAuth } from 'providers/ReduxStore/slices/collections/index';
-import { clearOauth2Cache } from 'utils/network/index';
+import { updateCollectionAuth } from 'providers/ReduxStore/slices/collections';
+import { clearOauth2Cache } from 'utils/network';
 import toast from 'react-hot-toast';
+import ClientCredentialsMethodSelector from 'components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector';
 
 const OAuth2AuthorizationCode = ({ collection }) => {
   const dispatch = useDispatch();
@@ -22,7 +23,17 @@ const OAuth2AuthorizationCode = ({ collection }) => {
 
   const handleSave = () => dispatch(saveCollectionRoot(collection.uid));
 
-  const { callbackUrl, authorizationUrl, accessTokenUrl, clientId, clientSecret, scope, state, pkce } = oAuth;
+  const {
+    callbackUrl,
+    authorizationUrl,
+    accessTokenUrl,
+    clientId,
+    clientSecret,
+    clientSecretMethod,
+    scope,
+    state,
+    pkce
+  } = oAuth;
 
   const handleChange = (key, value) => {
     dispatch(
@@ -36,6 +47,7 @@ const OAuth2AuthorizationCode = ({ collection }) => {
           accessTokenUrl,
           clientId,
           clientSecret,
+          clientSecretMethod,
           scope,
           state,
           pkce,
@@ -57,6 +69,7 @@ const OAuth2AuthorizationCode = ({ collection }) => {
           accessTokenUrl,
           clientId,
           clientSecret,
+          clientSecretMethod,
           scope,
           state,
           pkce: !Boolean(oAuth?.['pkce'])
@@ -105,6 +118,7 @@ const OAuth2AuthorizationCode = ({ collection }) => {
           onChange={handlePKCEToggle}
         />
       </div>
+      <ClientCredentialsMethodSelector collection={collection} oAuth={oAuth} />
       <div className="flex flex-row gap-4">
         <button onClick={handleRun} className="submit btn btn-sm btn-secondary w-fit">
           Get Access Token
diff --git a/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/ClientCredentials/index.js b/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/ClientCredentials/index.js
index d69122b4..bda04058 100644
--- a/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/ClientCredentials/index.js
+++ b/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/ClientCredentials/index.js
@@ -6,7 +6,8 @@ import SingleLineEditor from 'components/SingleLineEditor';
 import { saveCollectionRoot, sendCollectionOauth2Request } from 'providers/ReduxStore/slices/collections/actions';
 import StyledWrapper from './StyledWrapper';
 import { inputsConfig } from './inputsConfig';
-import { updateCollectionAuth } from 'providers/ReduxStore/slices/collections/index';
+import { updateCollectionAuth } from 'providers/ReduxStore/slices/collections';
+import ClientCredentialsMethodSelector from 'components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector';
 
 const OAuth2ClientCredentials = ({ collection }) => {
   const dispatch = useDispatch();
@@ -20,7 +21,7 @@ const OAuth2ClientCredentials = ({ collection }) => {
 
   const handleSave = () => dispatch(saveCollectionRoot(collection.uid));
 
-  const { accessTokenUrl, clientId, clientSecret, scope } = oAuth;
+  const { accessTokenUrl, clientId, clientSecret, clientSecretMethod, scope } = oAuth;
 
   const handleChange = (key, value) => {
     dispatch(
@@ -32,6 +33,7 @@ const OAuth2ClientCredentials = ({ collection }) => {
           accessTokenUrl,
           clientId,
           clientSecret,
+          clientSecretMethod,
           scope,
           [key]: value
         }
@@ -60,6 +62,7 @@ const OAuth2ClientCredentials = ({ collection }) => {
           </div>
         );
       })}
+      <ClientCredentialsMethodSelector collection={collection} oAuth={oAuth} />
       <button onClick={handleRun} className="submit btn btn-sm btn-secondary w-fit">
         Get Access Token
       </button>
diff --git a/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/PasswordCredentials/index.js b/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/PasswordCredentials/index.js
index d2d9eed1..a30139e4 100644
--- a/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/PasswordCredentials/index.js
+++ b/packages/bruno-app/src/components/CollectionSettings/Auth/OAuth2/PasswordCredentials/index.js
@@ -6,7 +6,8 @@ import SingleLineEditor from 'components/SingleLineEditor';
 import { saveCollectionRoot, sendCollectionOauth2Request } from 'providers/ReduxStore/slices/collections/actions';
 import StyledWrapper from './StyledWrapper';
 import { inputsConfig } from './inputsConfig';
-import { updateCollectionAuth } from 'providers/ReduxStore/slices/collections/index';
+import { updateCollectionAuth } from 'providers/ReduxStore/slices/collections';
+import ClientCredentialsMethodSelector from 'components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector';
 
 const OAuth2AuthorizationCode = ({ item, collection }) => {
   const dispatch = useDispatch();
@@ -20,7 +21,7 @@ const OAuth2AuthorizationCode = ({ item, collection }) => {
 
   const handleSave = () => dispatch(saveCollectionRoot(collection.uid));
 
-  const { accessTokenUrl, username, password, clientId, clientSecret, scope } = oAuth;
+  const { accessTokenUrl, username, password, clientId, clientSecret, clientSecretMethod, scope } = oAuth;
 
   const handleChange = (key, value) => {
     dispatch(
@@ -34,6 +35,7 @@ const OAuth2AuthorizationCode = ({ item, collection }) => {
           password,
           clientId,
           clientSecret,
+          clientSecretMethod,
           scope,
           [key]: value
         }
@@ -62,6 +64,7 @@ const OAuth2AuthorizationCode = ({ item, collection }) => {
           </div>
         );
       })}
+      <ClientCredentialsMethodSelector collection={collection} oAuth={oAuth} />
       <button onClick={handleRun} className="submit btn btn-sm btn-secondary w-fit">
         Get Access Token
       </button>
diff --git a/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/AuthorizationCode/index.js b/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/AuthorizationCode/index.js
index 2bb5dcc3..495cb10e 100644
--- a/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/AuthorizationCode/index.js
+++ b/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/AuthorizationCode/index.js
@@ -7,8 +7,9 @@ import { updateAuth } from 'providers/ReduxStore/slices/collections';
 import { saveRequest, sendRequest } from 'providers/ReduxStore/slices/collections/actions';
 import StyledWrapper from './StyledWrapper';
 import { inputsConfig } from './inputsConfig';
-import { clearOauth2Cache } from 'utils/network/index';
+import { clearOauth2Cache } from 'utils/network';
 import toast from 'react-hot-toast';
+import ClientCredentialsMethodSelector from 'components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector';
 
 const OAuth2AuthorizationCode = ({ item, collection }) => {
   const dispatch = useDispatch();
@@ -22,7 +23,17 @@ const OAuth2AuthorizationCode = ({ item, collection }) => {
 
   const handleSave = () => dispatch(saveRequest(item.uid, collection.uid));
 
-  const { callbackUrl, authorizationUrl, accessTokenUrl, clientId, clientSecret, scope, state, pkce } = oAuth;
+  const {
+    callbackUrl,
+    authorizationUrl,
+    accessTokenUrl,
+    clientId,
+    clientSecret,
+    clientSecretMethod,
+    scope,
+    state,
+    pkce
+  } = oAuth;
 
   const handleChange = (key, value) => {
     dispatch(
@@ -37,6 +48,7 @@ const OAuth2AuthorizationCode = ({ item, collection }) => {
           accessTokenUrl,
           clientId,
           clientSecret,
+          clientSecretMethod,
           state,
           scope,
           pkce,
@@ -59,6 +71,7 @@ const OAuth2AuthorizationCode = ({ item, collection }) => {
           accessTokenUrl,
           clientId,
           clientSecret,
+          clientSecretMethod,
           state,
           scope,
           pkce: !Boolean(oAuth?.['pkce'])
@@ -108,6 +121,7 @@ const OAuth2AuthorizationCode = ({ item, collection }) => {
           onChange={handlePKCEToggle}
         />
       </div>
+      <ClientCredentialsMethodSelector item={item} collection={collection} oAuth={oAuth} />
       <div className="flex flex-row gap-4">
         <button onClick={handleRun} className="submit btn btn-sm btn-secondary w-fit">
           Get Access Token
diff --git a/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/ClientCredentials/index.js b/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/ClientCredentials/index.js
index a43c8f0a..9473d129 100644
--- a/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/ClientCredentials/index.js
+++ b/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/ClientCredentials/index.js
@@ -7,6 +7,7 @@ import { updateAuth } from 'providers/ReduxStore/slices/collections';
 import { saveRequest, sendRequest } from 'providers/ReduxStore/slices/collections/actions';
 import StyledWrapper from './StyledWrapper';
 import { inputsConfig } from './inputsConfig';
+import ClientCredentialsMethodSelector from 'components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector';
 
 const OAuth2ClientCredentials = ({ item, collection }) => {
   const dispatch = useDispatch();
@@ -20,7 +21,7 @@ const OAuth2ClientCredentials = ({ item, collection }) => {
 
   const handleSave = () => dispatch(saveRequest(item.uid, collection.uid));
 
-  const { accessTokenUrl, clientId, clientSecret, scope } = oAuth;
+  const { accessTokenUrl, clientId, clientSecret, clientSecretMethod, scope } = oAuth;
 
   const handleChange = (key, value) => {
     dispatch(
@@ -33,6 +34,7 @@ const OAuth2ClientCredentials = ({ item, collection }) => {
           accessTokenUrl,
           clientId,
           clientSecret,
+          clientSecretMethod,
           scope,
           [key]: value
         }
@@ -62,6 +64,7 @@ const OAuth2ClientCredentials = ({ item, collection }) => {
           </div>
         );
       })}
+      <ClientCredentialsMethodSelector item={item} collection={collection} oAuth={oAuth} />
       <button onClick={handleRun} className="submit btn btn-sm btn-secondary w-fit">
         Get Access Token
       </button>
diff --git a/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector/StyledWrapper.js b/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector/StyledWrapper.js
new file mode 100644
index 00000000..2ae9cbf1
--- /dev/null
+++ b/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector/StyledWrapper.js
@@ -0,0 +1,25 @@
+import styled from 'styled-components';
+
+const Wrapper = styled.div`
+  font-size: 0.8125rem;
+
+  .client-credentials-secret-mode-selector {
+    padding: 0.5rem 0px;
+    border-radius: 3px;
+    border: solid 1px ${(props) => props.theme.input.border};
+    background-color: ${(props) => props.theme.input.bg};
+
+    .client-credentials-secret-label {
+      width: fit-content;
+      color: ${(props) => props.theme.colors.text.yellow};
+      justify-content: space-between;
+      padding: 0 0.5rem;
+    }
+
+    .dropdown-item {
+      padding: 0.2rem 0.6rem !important;
+    }
+  }
+`;
+
+export default Wrapper;
diff --git a/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector/index.js b/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector/index.js
new file mode 100644
index 00000000..2a309d0f
--- /dev/null
+++ b/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector/index.js
@@ -0,0 +1,82 @@
+import React, { forwardRef, useEffect, useRef } from 'react';
+import Dropdown from 'components/Dropdown';
+import StyledWrapper from './StyledWrapper';
+import { IconCaretDown } from '@tabler/icons';
+import { updateAuth, updateCollectionAuth } from 'providers/ReduxStore/slices/collections';
+import { useDispatch } from 'react-redux';
+import { humanizeOAuth2ClientSecretMethod } from 'utils/collections';
+
+const ClientCredentialsMethodSelector = ({ item, collection, oAuth }) => {
+  const clientSecretMethods = ['client_credentials_basic', 'client_credentials_post'];
+
+  const dispatch = useDispatch();
+  const dropDownRef = useRef();
+  const onDropdownCreate = (ref) => (dropDownRef.current = ref);
+
+  const Icon = forwardRef((props, ref) => {
+    return (
+      <div ref={ref} className="flex items-center justify-end client-credentials-secret-label select-none">
+        {humanizeOAuth2ClientSecretMethod(oAuth?.clientSecretMethod)}{' '}
+        <IconCaretDown className="caret ml-1 mr-1" size={14} strokeWidth={2} />
+      </div>
+    );
+  });
+
+  const onClientSecretMethodChange = (clientSecretMethod) => {
+    if (item) {
+      // Update request level authorization
+      dispatch(
+        updateAuth({
+          mode: 'oauth2',
+          collectionUid: collection.uid,
+          itemUid: item.uid,
+          content: {
+            ...oAuth,
+            clientSecretMethod: clientSecretMethod
+          }
+        })
+      );
+    } else {
+      // Update collection level authorization
+      dispatch(
+        updateCollectionAuth({
+          mode: 'oauth2',
+          collectionUid: collection.uid,
+          content: {
+            ...oAuth,
+            clientSecretMethod: clientSecretMethod
+          }
+        })
+      );
+    }
+  };
+
+  useEffect(() => {
+    !oAuth?.clientSecretMethod && onClientSecretMethodChange(clientSecretMethods[0]);
+  }, [oAuth.clientSecretMethod]);
+
+  return (
+    <StyledWrapper>
+      <label className="block font-medium mb-2">Send Client Credentials</label>
+      <div className="inline-flex items-center cursor-pointer client-credentials-secret-mode-selector w-fit">
+        <Dropdown onCreate={onDropdownCreate} icon={<Icon />} placement="bottom-end">
+          {clientSecretMethods.map((item, index) => (
+            <div
+              key={item}
+              className="dropdown-item"
+              onClick={() => {
+                dropDownRef.current.hide();
+                onClientSecretMethodChange(item);
+              }}
+            >
+              {' '}
+              {humanizeOAuth2ClientSecretMethod(item)}
+              {index === 0 ? ` (Default)` : ``}
+            </div>
+          ))}
+        </Dropdown>
+      </div>
+    </StyledWrapper>
+  );
+};
+export default ClientCredentialsMethodSelector;
diff --git a/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/PasswordCredentials/index.js b/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/PasswordCredentials/index.js
index 4ec8c1fa..b041ba86 100644
--- a/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/PasswordCredentials/index.js
+++ b/packages/bruno-app/src/components/RequestPane/Auth/OAuth2/PasswordCredentials/index.js
@@ -7,6 +7,7 @@ import { updateAuth } from 'providers/ReduxStore/slices/collections';
 import { saveRequest, sendRequest } from 'providers/ReduxStore/slices/collections/actions';
 import StyledWrapper from './StyledWrapper';
 import { inputsConfig } from './inputsConfig';
+import ClientCredentialsMethodSelector from 'components/RequestPane/Auth/OAuth2/ClientCredentialsMethodSelector';
 
 const OAuth2AuthorizationCode = ({ item, collection }) => {
   const dispatch = useDispatch();
@@ -20,7 +21,7 @@ const OAuth2AuthorizationCode = ({ item, collection }) => {
 
   const handleSave = () => dispatch(saveRequest(item.uid, collection.uid));
 
-  const { accessTokenUrl, username, password, clientId, clientSecret, scope } = oAuth;
+  const { accessTokenUrl, username, password, clientId, clientSecret, clientSecretMethod, scope } = oAuth;
 
   const handleChange = (key, value) => {
     dispatch(
@@ -35,6 +36,7 @@ const OAuth2AuthorizationCode = ({ item, collection }) => {
           password,
           clientId,
           clientSecret,
+          clientSecretMethod,
           scope,
           [key]: value
         }
@@ -64,6 +66,7 @@ const OAuth2AuthorizationCode = ({ item, collection }) => {
           </div>
         );
       })}
+      <ClientCredentialsMethodSelector item={item} collection={collection} oAuth={oAuth} />
       <button onClick={handleRun} className="submit btn btn-sm btn-secondary w-fit">
         Get Access Token
       </button>
diff --git a/packages/bruno-app/src/utils/collections/index.js b/packages/bruno-app/src/utils/collections/index.js
index ea8712be..7c5f6f43 100644
--- a/packages/bruno-app/src/utils/collections/index.js
+++ b/packages/bruno-app/src/utils/collections/index.js
@@ -723,6 +723,22 @@ export const humanizeGrantType = (mode) => {
   return label;
 };
 
+export const humanizeOAuth2ClientSecretMethod = (mode) => {
+  let label = 'N/A';
+  switch (mode) {
+    case 'client_credentials_basic': {
+      label = 'As Basic Auth Header';
+      break;
+    }
+    case 'client_credentials_post': {
+      label = 'In Request Body';
+      break;
+    }
+  }
+
+  return label;
+};
+
 export const refreshUidsInItem = (item) => {
   item.uid = uuid();