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Fitness Tools

Maximum Muscular Potential

POST
/v1/tools/muscle-potential

Estimate drug-free maximum bodyweight at a target body-fat % via Casey Butt (wrist+ankle), the FFMI~25 natural cap, and Berkhan’s max-contest-weight model. Men only in v1.

Request Body required

Section titled “Request Body required ”
object
sex
required
string
Allowed values: male female
height
required
object
value
required
number
unit
string
default: cm
Allowed values: cm in mm
wrist
object
value
required
number
unit
string
default: cm
Allowed values: cm in mm
ankle
object
value
required
number
unit
string
default: cm
Allowed values: cm in mm
target_body_fat_pct
number
default: 10 >= 3 <= 40
methods
Any of:
Array<string>
Example
{
  "sex": "male",
  "height": {
    "value": 180,
    "unit": "cm"
  }
}

Responses

Section titled “ Responses ”

200

Section titled “200 ”

Maximum Muscular Potential result

object
results
required
Array<object>
object
method
required
string
value
required
number
unit
required
string
detail
object
key
additional properties
consensus
required
object
mean
required
number
median
required
number
min
required
number
max
required
number
n
required
integer
skipped
required
Array<object>
object
method
required
string
reason
required
string

400

Section titled “400 ”

Inputs valid but semantically impossible, or a required method’s inputs are missing.

object
error
required
object
type
required
string
message
required
string
details

422

Section titled “422 ”

Input failed validation (Zod).

object
error
required
object
type
required
string
message
required
string
details