Yes its possible, but in a round about way, and with a ~1% fee.
A "Gift of College" (GOC) account can be used for this purpose. They can be used to pay student loans. You can find a full break down of the method here, but the short of it is you can buy G.O.C. "gift cards" (used to load a Gift of college account, to pay student loans) at Toys R' Us with a credit card. In short;
- Open a Gift Of College account online, and link it to your student loan account (free).
- Buy Gift of College gift cards at Toys R' Us with a credit card. Buy in $500 increments. You will incur a 1% fee in this step for the price of the "gift card" (around $6 I believe). You can buy GOC gift cards online, but in lower increments (effectively increasing the fee % you are paying).
- Load the GOC gift card to your GOC account online, then use the account to make a payment towards the loan.
That's it. A few caveats;
- You may not find the GOC gift cards at your local Toys R Us.
- If you find them, they may have a policy which dissalows buying gift cards with a credit card.
- Even if they don't have said policy, some clerks try to apply limitations that don't exist. In this case, its worth trying a different day with a different clerk.
- GOC may not have (or may remove) your student loan processor at any time.
- GOC may decide your account has suspicious activity and shut you down. In this case, you would most likely get your money back, but it would be a hassle.
- Your CC company may flag you for suspicious activity. In the best case, they just confirm the transactions were done by you. In the worst case they shut you down for 'manufacturing spend'.
The last two cases are unlikely, I think, but still possible. Keep all documents/receipts/gc's just in case, and start small (for example, try a $1 transaction to make sure the workflow works for you before ramping up).