> For the complete documentation index, see [llms.txt](https://docs.bitcoin-balance-api.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bitcoin-balance-api.com/error-codes.md).

# Error Codes

**200** - OK

**401** - Authentication Error

**402** - Payment Required

**422** - Wrong Bitcoin Address

**429** - You have hit your assigned rate limit for the API

**500** - We could not process your request (Wrong Input or too many utxo transactions per address)