> For the complete documentation index, see [llms.txt](https://docs.mastersindia.co/e-invoicing-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mastersindia.co/e-invoicing-api/access-token/access-token-vanila.md).

# Access Token Vanila

{% embed url="<https://www.mastersindia.co/contact-us/?products=E-Invoicing%20API>" %}

<table><thead><tr><th width="180">Name</th><th>Description</th></tr></thead><tbody><tr><td><strong>Name URL</strong>    </td><td><a href="http://client.mastersindia.co/oauth/access_token">http://client.mastersindia.co/oauth/access_token</a></td></tr><tr><td><strong>Method Type</strong></td><td>Post</td></tr><tr><td><strong>Post Parameters (JSON Format)</strong></td><td><p>{ </p><p>"username":"*******@mastersindia.co", </p><p>"password": "***********<strong>", "client_id":"***********</strong>", "client_secret":"QFd6dZvCGqckabKxTapfZgJc", "grant_type":"password" </p><p>}</p></td></tr><tr><td><strong>Success Response</strong></td><td>{"access_token":"8a6ce6f2c4ac86e09b330e17cd59862a3ff2ed25","expires_in":3600,"token_type":"bearer"}</td></tr><tr><td><strong>Error Response</strong></td><td>{"error":"invalid_client","error_description":"The client credentials are invalid"}</td></tr></tbody></table>

{% embed url="<https://www.mastersindia.co/contact-us/?products=E-Invoicing%20API>" %}