🤔 

 your name might be the answer. 

 Utxo.live 

 Unfortunately not since inception but would be interesting to play with: https://utxo.live/oracle/UTXOracle.py 

 Hmmm looks like it's only estimating using some hard coded numbers 

 I recall seeing something like this being surprisingly accurate. Guess it depends on your use case. 

 https://bitcoincharts.com/about/markets-api/

MtGox data would go back to when there was early , significant price discovery.
At inception, there was no price. 

 I love that site as they also allow you to download their entire database as a zipped CSV. That way you can be your own historical price API within minutes.  

 Consider using the raw data from my repo https://github.com/jlopp/bitcoin-exchange-rates-block-height 

 Perfect thank you!!! 

 Coinbase doesn’t require authentication: https://docs.cloud.coinbase.com/sign-in-with-coinbase/docs/api-prices#get-spot-price

CoinGecko also: https://docs.coingecko.com/reference/simple-price

CoinGecko seems to rate limit more aggressively than Coinbase. 

 Sorry, I linked to the wrong CoinGecko API reference. That one was for the Pro API. The Public API is here: https://docs.coingecko.com/v3.0.1/reference/simple-price 

 Perfect thanks Terry I'll check it!!