# We are getting authentication failed error message while generating access token **URL:** \ **Category:** API and Webhooks\ **Tags:** api\ **Created:** [May 15, 2025, 12:16pm UTC](https://devforum.zoom.us/t/we-are-getting-authentication-failed-error-message-while-generating-access-token/132794 "2025-05-15T12:16:37Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![prashant.kumar](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/prashant.kumar/32/55241_2.png) [@prashant.kumar](https://devforum.zoom.us/u/prashant.kumar)\ **Post date:** [May 15, 2025, 12:16pm UTC](https://devforum.zoom.us/t/we-are-getting-authentication-failed-error-message-while-generating-access-token/132794/1 "2025-05-15T12:16:38Z")
while generating zoom access token on postman it is giving this error Couldn’t complete authentication. Check the Postman Console for more details. POST [https://zoom.us/oauth/access\_token:](https://zoom.us/oauth/access_token:) { “Network”: { “addresses”: { “local”: { “address”: “172.17.0.2”, “family”: “IPv4”, “port”: 42970 }, “remote”: { “address”: “170.114.52.2”, “family”: “IPv4”, “port”: 443 } }, “tls”: { “reused”: false, “authorized”: true, “authorizationError”: null, “cipher”: { “name”: “TLS\_AES\_256\_GCM\_SHA384”, “standardName”: “TLS\_AES\_256\_GCM\_SHA384”, “version”: “TLSv1.3” }, “protocol”: “TLSv1.3”, “ephemeralKeyInfo”: { “type”: “ECDH”, “name”: “X25519”, “size”: 253 }, “peerCertificate”: { “subject”: { “country”: “US”, “stateOrProvince”: “California”, “locality”: “San Jose”, “organization”: “Zoom Video Communications, Inc.”, “commonName”: “_.zoom.us", “alternativeNames”: "DNS:_.zoom.us, DNS:zoom.us” }, “issuer”: { “country”: “US”, “organization”: “DigiCert Inc”, “commonName”: “DigiCert Global G2 TLS RSA SHA256 2020 CA1” }, “validFrom”: “Feb 8 00:00:00 2025 GMT”, “validTo”: “Feb 11 23:59:59 2026 GMT”, “fingerprint”: “CA:72:71:64:44:AB:CE:36:3B:75:A2:7F:DD:6B:A1:BC:FB:2F:B0:44”, “serialNumber”: “06F536B8B5519DF5F91AEE329857965A” } } }, “Request Headers”: { “content-type”: “application/x-www-form-urlencoded”, “authorization”: “Basic N2FjWnVsTGFUaHlYclloVDRLWEI1ZzpBcTBBNlh0MktwMUZKdDlGdWpLRnB2TjdnNkFNUVdCRQ==”, “user-agent”: “PostmanRuntime/7.43.3”, “accept”: “_/_”, “cache-control”: “no-cache”, “postman-token”: “0f07087c-b8f7-452d-8b54-1d618f1d5f3c”, “host”: “[zoom.us](http://zoom.us)”, “accept-encoding”: “gzip, deflate, br”, “connection”: “keep-alive” }, “Request Body”: { “grant\_type”: “authorization\_code”, “code”: “lo11niwqgg6U\_vBiEMFRyK47E7ON4cUSg”, “redirect\_uri”: “[https://oauth.pstmn.io/v1/browser-callback](https://oauth.pstmn.io/v1/browser-callback)” }, “Response Headers”: { “date”: “Tue, 22 Apr 2025 05:44:40 GMT”, “content-type”: “text/html;charset=utf-8”, “transfer-encoding”: “chunked”, “connection”: “keep-alive”, “x-zm-trackingid”: “v=2.0;clid=aw1;rid=WEB\_8540c4e024cdaa50fdb6d2a27bf0fcc5”, “x-content-type-options”: “nosniff”, “content-security-policy”: “upgrade-insecure-requests; default-src https://\*.zoom.us [https://zoom.us](https://zoom.us) blob: ‘self’; img-src https: about: blob: data: ‘self’; style-src https: safari-extension: chrome-extension: ‘unsafe-inline’ data: ‘self’; font-src https: safari-extension: chrome-extension: blob: data: ‘self’; connect-src \* about: blob: data: ‘self’; media-src \* rtmp: blob: data: ‘self’; frame-src https: ms-appx-web: zoommtg: zoomus: wvjbscheme: zoomprc: data: blob: ‘self’; object-src ‘none’; base-uri ‘none’;script-src ‘self’ ‘wasm-unsafe-eval’ ‘strict-dynamic’ ‘nonce-eZyvPYgERf2YuyOzDJUE4g’ blob: https:;”, “x-frame-options”: “SAMEORIGIN”, “set-cookie”: [ “\_zm\_feature=; Max-Age=0; Expires=Thu, 01 Jan 1970 00:00:10 GMT; Secure; HttpOnly”, “zm\_aid=; Max-Age=0; Expires=Thu, 01 Jan 1970 00:00:10 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure; HttpOnly”, “zm\_haid=; Max-Age=0; Expires=Thu, 01 Jan 1970 00:00:10 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure; HttpOnly”, “zm\_tmaid=; Max-Age=0; Expires=Thu, 01 Jan 1970 00:00:10 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure; HttpOnly”, “zm\_htmaid=; Max-Age=0; Expires=Thu, 01 Jan 1970 00:00:10 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure; HttpOnly”, “cred=CBC5B58F14AC94179B241009FDCA8F6C; Path=/; Secure; HttpOnly”, “\_zm\_page\_auth=aw1\_c\_R0sLnuHLQLapQ17iRhD7fA; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure; HttpOnly”, “\_zm\_ssid=aw1\_c\_8AueKre3SACJiBOczA9h5A; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure; HttpOnly”, “\_zm\_ctaid=ODzJjhOMSROocJZlLNVUXw.1745300680638.9e03ba70069c600e3c4939cd453e670d; Max-Age=7200; Expires=Tue, 22 Apr 2025 07:44:40 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure; HttpOnly”, “\_zm\_chtaid=935; Max-Age=7200; Expires=Tue, 22 Apr 2025 07:44:40 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure; HttpOnly”, “\_zm\_mtk\_guid=ce29b5b515d24066a83ab55621c6de50; Max-Age=63072000; Expires=Thu, 22 Apr 2027 05:44:40 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure”, “\_zm\_ctaid=KIEDRtIaSx2k3e5qc0MTAQ.1745300680638.54190f3a5f6ec910b0c73b0215edebde; Max-Age=7200; Expires=Tue, 22 Apr 2025 07:44:40 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure; HttpOnly”, “\_zm\_chtaid=95; Max-Age=7200; Expires=Tue, 22 Apr 2025 07:44:40 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure; HttpOnly”, “\_zm\_mtk\_guid=82372f198dbf4949bfb7907fd6fcad52; Max-Age=63072000; Expires=Thu, 22 Apr 2027 05:44:40 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure”, “\_zm\_csp\_script\_nonce=eZyvPYgERf2YuyOzDJUE4g; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure; HttpOnly”, “\_zm\_currency=USD; Max-Age=86400; Expires=Wed, 23 Apr 2025 05:44:40 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure”, “\_zm\_visitor\_guid=de1beb7bfbd14a4f8f583506f42fd42e; Max-Age=31536000; Expires=Wed, 22 Apr 2026 05:44:40 GMT; [Domain=zoom.us](http://Domain=zoom.us); Path=/; Secure”, “\_\_cf\_bm=YxuES2TEXXiTVb0ePSmSHQjV\_Rnu5b3s4a\_sIFLZ\_RU-1745300680-1.0.1.1-lRWFmVFbN7n.mmc9dqDZko4g0ngYDyI\_DoM6t9WCqxOAD.6n6GMRVZZ7hMVTf7jWcM.ZnHLqi5xZWnpPPWsUhlQIycj0AfdC.aMUr8FhWM8; path=/; expires=Tue, 22-Apr-25 06:14:40 GMT; [domain=.zoom.us](http://domain=.zoom.us); HttpOnly; Secure; SameSite=None” ], “x-zm-zoneid”: “VA”, “content-language”: “en-US”, “content-encoding”: “gzip”, “cf-cache-status”: “DYNAMIC”, “vary”: “accept-encoding”, “report-to”: “{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=TeLrGUhd4l96uqprl5ELOdIaGUEXVr2ErANojUhbkfm6UaXYHYpKYdhw3OTB7itFg2I2dnGFZ1tgBVuMUsY6QbpeTr9o34zfiOwziUSXlMocyys6R0fm3Tk%3D"}],"group":"cf-nel","max\_age":604800}”, “nel”: “{"success\_fraction":0.01,"report\_to":"cf-nel","max\_age":604800}”, “server”: “cloudflare”, “cf-ray”: “9342cf85af21ff28-IAD”, “alt-svc”: “h3=":443"; ma=86400” }, “Response Body”: “The console only shows response bodies smaller than 10 KB inline. To view the complete body, inspect it by clicking Open.” } Error: Could not complete OAuth 2.0 token request ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\ **Post date:** [May 19, 2026, 3:52am UTC](https://devforum.zoom.us/t/we-are-getting-authentication-failed-error-message-while-generating-access-token/132794/2 "2026-05-19T03:52:54Z")
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