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API Playground Troubleshooting

The API playground lets you test endpoints directly in the browser. Here are solutions to common issues.

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”Missing required fields to send a playground request”

This error occurs when required parameters haven’t been filled in. Here’s how to fix it:

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For GET Requests

GET requests typically only need your API key:
  1. Enter your API key in the Authorization field
  2. Click Send
Example working GET requests:
  • GET /models
  • GET /voices
  • GET /developer/api

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For POST Requests

POST requests need additional body parameters:
  1. Enter your API key in the Authorization field
  2. Fill in all required body parameters (marked with required)
  3. Click Send
Example: For POST /tts-synthesize, you must fill in:
  • text (required) - The text to convert to speech
  • voice_id (optional) - Voice to use
  • speed (optional) - Speech speed

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For Path Parameters

Some endpoints have path parameters like {id}:
  1. Enter your API key in the Authorization field
  2. Fill in the path parameter (e.g., the API key ID)
  3. Click **Send`
Example: DELETE /developer/api/{id} requires the API key ID in the URL.

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Billing & Credits Issues

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Issue: “402 Insufficient credits” or “ZERO_BALANCE”

Cause: The workspace wallet has no funds Solution:
  • Check your workspace balance in the Dashboard billing page
  • Add funds via the Dashboard billing page
  • Each workspace has its own wallet — make sure you’re checking the right workspace

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Issue: “403 Forbidden” on billing endpoints

Cause: Only workspace owners can access billing endpoints Solution:
  • Verify you are the workspace owner (not admin/developer/member)
  • Contact the workspace owner to manage billing

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Issue: “Workspace not found” on API calls

Cause: The API key or JWT token is not associated with a valid workspace Solution:
  • If using API keys: verify the key is active and linked to a workspace
  • If using JWT: include workspace_id in the request body or query params
  • Check that the workspace hasn’t been deleted

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Common Issues

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Issue: “401 Unauthorized”

Cause: Invalid or missing API key Solution:
  • Verify your API key is correct
  • Get a new API key from app.60db.ai
  • Make sure you’re including the key in the Authorization field

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Issue: “CORS error”

Cause: Browser security blocking the request Solution:
  • Make sure you’re testing from the documentation site
  • Try refreshing the page
  • Clear your browser cache

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Issue: Request times out

Cause: Network issues or server problems Solution:
  • Check your internet connection
  • Try again in a few moments
  • Check if the API is operational

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Getting Your API Key

  1. Go to app.60db.ai
  2. Navigate to Settings → Developer → API Keys
  3. Click Create API Key
  4. Copy and store your API key securely

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Tips for Using the Playground

  1. Start with GET requests - They’re simpler and only need an API key
  2. Check required fields - All required fields must be filled before sending
  3. Use example values - The playground shows example values to help you get started
  4. Test incrementally - Try one endpoint at a time to understand the API

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Still Having Issues?

If you’re still experiencing problems: