Endpoint URL:
https://aisenseapi.com/services/v1/jwt_decode

Description:
This endpoint decodes a JSON Web Token (JWT) and returns its payload. It accepts JWT input as JSON with a data field, as a plain text string with Content-Type: text/plain, or as a file upload. To successfully decode the JWT, a secret key must be provided in the request.

If the JWT or secret is invalid, an appropriate error message will be returned.

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Response Format

• Content-Type: application/json

Example Success Response:

Example Error Responses:

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Input Requirements

The API accepts JWT input in three formats:

1. JSON Input:

   {
 "data":

   "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c",
 "secret": "your_secret_key"
}


2. Plain Text Input:

   eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...


3. File Upload: Send the JWT as a file with the key jwt_data using multipart/form-data.

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Use Cases

• Decoding JWTs for user authentication tokens
• Verifying JWT signatures with a secret key
• Extracting claims from secure tokens in web applications

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How to Use

1. Send a POST request to:
   https://aisenseapi.com/services/v1/jwt_decode

2. Choose your input format:

   • JSON input:
     
     {
 "data": "JWT_string_here",
 "secret": "your_secret_key"
}

   • Plain text input (with secret key in JSON):
     
     JWT_string_here


3. Handle the response:

   • If valid, the decoded JWT payload will be returned.
   • If invalid, an error message will be provided.

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Example cURL Requests

• JSON Input:

  curl -X POST https://aisenseapi.com/services/v1/jwt_decode \
-H "Content-Type: application/json" \
-d '{"data":"your.jwt.token","secret":"your_secret_key"}'


• Plain Text Input:

  curl -X POST https://aisenseapi.com/services/v1/jwt_decode \
-H "Content-Type: text/plain" \
-H "X-Secret: your_secret_key" \
--data "your.jwt.token"


• File Upload:

  curl -X POST https://aisenseapi.com/services/v1/jwt_decode \
-F "jwt_data=@/path/to/token.txt" \
-F "secret=your_secret_key"


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Key Features

• Supports JSON, plain text, and file input formats
• Requires a secret key for decoding HS256 tokens
• Provides clear error handling for invalid input or JWT decoding issues
• No authentication required – free public API