API route returning 404, but Web route works

So, I have two routes setup. One route is in web.php.

Route::post('/trials', 'TrialsController@store');

And the API version of it is in api.php:

Route::post('/v1/trials', 'TrialsController@store');

I created a simple form for myself to test the web route from the browser, and can successfully store a trial by POSTing to the web route above. However, from Postman when I try to store a trial by POSTing to the API route above, I get a 404 in the response.

Here is my TrialsController's store method.

{
    // Here we are after successful validation of the request

    // First, we create the firm associated with the trial. 
    $firm = Firm::create([
        'name' => $request->name,
        'aum' => $request->aum,
    ]);

    // Then, we create a new contact in the database for the firm.
    $contact = $firm->contacts()->save(new Contact([
        'first_name' => $request->first_name,
        'last_name' => $request->last_name,
        'email' => $request->email,
        'phone' => $request->phone
    ]));

    // Finally, we create the new initial trial in the database for the contact.
    $trial = $contact->trials()->save(new Trial([
        'starts_on' => $request->starts_on,
        'ends_on' => $request->ends_on,
        'repeated' => 0
    ]));

    // All is saved to the database, now return the new intial trial.
    return (new TrialResource($trial));
}

The StoreTrial form request rules' method is as follows.

{
    return [
        'name' => 'required | min:3',
        'aum' => 'numeric',
        'first_name' => 'required',
        'last_name' => 'required',
        'email' => 'required',
        'phone' => 'required',
        'starts_on' => 'required',
        'ends_on' => 'required'
    ];
}

Is this related to special authentication that I need to setup for API calls? I am a bit lost as to why web route works but api route does not. Can two routes not hit the same controller/method? Appreciate any help. Thanks!