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Error Responses

The CoinStats API uses standard HTTP status codes to indicate the success or failure of requests.

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HTTP Status Codes

Status CodeDescription
200Success - Request completed successfully
400Bad Request - Invalid parameters or request format
401Unauthorized - Invalid or missing API key
404Not Found - Resource not found
409Conflict - Resource conflict (e.g., transactions not synced)
429Too Many Requests - Rate limit exceeded
500Internal Server Error - Server error

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Common Error Responses

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401 Unauthorized

Invalid or missing API key: 
{
  "error": "Unauthorized",
  "message": "Invalid API key"
}

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400 Bad Request

Invalid parameters: 
{
  "error": "Bad Request",
  "message": "Invalid parameter: coinId",
}

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404 Not Found

Resource not found: 
{
  "error": "Not Found",
  "message": "Coin with id 'invalid-coin' not found"
}

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409 Conflict

Transactions not synced: 
{
  "message": "Transactions not synced. Please call PATCH /transactions"
}

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429 Too Many Requests

Rate limit exceeded: 
{
  "error": "Rate limit exceeded",
  "message": "Insufficient credits for this request"
}

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Troubleshooting

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Authentication Issues

  1. Check your API key: Ensure you’re using the correct API key
  2. Verify header format: Make sure the X-API-KEY header is properly set
  3. Check key permissions: Ensure your API key has the necessary permissions

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Rate Limiting

  1. Monitor credit usage: Check your credit consumption in the dashboard
  2. Optimize requests: Use filters and pagination to reduce data transfer
  3. Upgrade plan: Consider upgrading if you consistently hit limits

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Data Not Found

  1. Verify parameters: Check that all required parameters are provided
  2. Check data availability: Some data might not be available for all coins/time periods
  3. Use correct IDs: Ensure you’re using the correct coin IDs from the API

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Wallet/Transaction Issues

  1. Sync transactions: Call the sync endpoint before requesting transaction data
  2. Check wallet address: Ensure the wallet address is valid and supported
  3. Verify blockchain: Make sure the blockchain is supported by CoinStats
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