# info.description
Read-only calculation endpoints for hypothetical retirement growth and historical cryptocurrency investment results. Results are educational and are not investment, tax, or legal advice.

# paths./api/calculators/retirement/.get.summary
Calculate a hypothetical retirement projection

# paths./api/calculators/retirement/.get.description
Uses a constant user-supplied annual return. It does not request or return historical market data.

# paths./api/calculators/retirement/.get.responses.200.description
The calculated retirement projection with Coin IRA attribution and public calculator links.

# paths./api/calculators/retirement/.get.responses.400.description
One or more query parameters are invalid.

# paths./api/calculators/retirement/.get.responses.429.description
The limit of 30 requests per minute was exceeded.

# paths./api/calculators/investment/.get.summary
Calculate a historical cryptocurrency result

# paths./api/calculators/investment/.get.description
Returns the calculated result and the two prices used. It does not return the underlying historical price series.

# paths./api/calculators/investment/.get.responses.200.description
The calculated historical result with Coin IRA attribution and public calculator links.

# paths./api/calculators/investment/.get.responses.422.description
No closing price exists for the requested start date.

# paths./api/calculators/investment/.get.responses.400.description
One or more query parameters are invalid.

# paths./api/calculators/investment/.get.responses.429.description
The limit of 6 requests per minute was exceeded.