Hey there! I know how frustrating it is to hit a wall with an API call when others are working—let's walk through the most likely fixes for that 404 error on Coinbase's List Transactions endpoint.

Since you can successfully call other Coinbase APIs from Postman, your core setup (like API key authentication, base URL) is probably good. Let's focus on the specifics of this endpoint:

• Confirm the full endpoint URL is correct
  The List Transactions endpoint requires a specific account ID in the path. The correct structure for Coinbase API v2 is:
  GET /v2/accounts/<YOUR_ACCOUNT_ID>/transactions
  A super common mistake for new users is forgetting to replace <YOUR_ACCOUNT_ID> with your actual account ID (you can get this from the List Accounts API response). Using the wrong API version (like v1 instead of v2) or omitting the account ID entirely will definitely throw a 404.

• Check your API key's permissions
  Even if other endpoints work, this transaction-read endpoint might require a specific scope. Make sure your Coinbase API key has the wallet:transactions:read permission enabled. You can verify this in your Coinbase account's API settings—sometimes Coinbase returns 404 instead of a more obvious "permission denied" error, which can be confusing.

• Verify request method and parameters
  Double-check that you're using a GET request (this endpoint doesn't accept POST/PUT/PATCH). Also, while optional parameters like limit or starting_after aren't required to make the call, ensure any parameters you add are correctly formatted (no typos, proper URL encoding if needed).

• Look for tiny typos in the URL
  It sounds silly, but a single typo (like transaction instead of transactions, or an extra/missing slash) can break the endpoint. Compare your Postman URL line-by-line with the official Coinbase docs example to catch any mistakes.

If none of these fix it, try testing the endpoint with a simple curl command (outside Postman) to rule out any Postman-specific settings (like auto-added headers or proxy issues):

curl -H "Authorization: Bearer <YOUR_AUTH_TOKEN>" https://api.coinbase.com/v2/accounts/<YOUR_ACCOUNT_ID>/transactions

If you're still stuck, share redacted versions of your Postman request URL, headers, and the API version you're using—we can dig deeper from there!

内容的提问来源于stack exchange，提问作者majumba