How can I login FB ID without login code?
You'll have to enter an email address and upload a copy of your ID, which can be a passport, driver's license, national ID card, or other official documents. Once you have provided the requested information, Facebook will email you with further steps for account recovery.
Is Facebook login API free?
The Graph API is free to use, for all applicable use cases. Rate Limiting applies though, > developers.facebook.com/docs/graph-api/advanced/rate-limiting There is no way to “pay” or > otherwise get those limits raised for normal 3rd party apps.