OpenRouter's own crypto top-up accepts one thing: USDC on the Base network, paid through the Coinbase checkout that openrouter.ai/settings/credits generates. OpenRouter support confirmed this publicly in October 2026 when a user sent USDT on Solana to a page that looked like OpenRouter: the funds were forwarded to a third party within a minute, OpenRouter never received them and could not credit them. If the page you paid gave you its own USDT or Solana address, with no Coinbase payment link that you generated yourself, it was a reseller or a phishing site, not OpenRouter.
The money is not with OpenRouter, so a support ticket cannot credit it. Your first step is the page operator: a reseller may refund you, a scam site will not. Send OpenRouter support the page URL anyway so they can warn others. Keep the transaction hash; on Solscan or Etherscan you can see where the funds went, which is useful if you report the site.
A legitimate route always starts from a payment link you generated inside your own OpenRouter account. ROZO Checkout works that way: you paste the OpenRouter payment link, pay the exact amount on your chosen chain, and ROZO settles that link so the credits land on the account that created it. ROZO is independent and not affiliated with OpenRouter or Coinbase.