Exchange in 3 steps
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Choose how much OP to send and enter your Theta Network address on Theta mainnet.
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Hit Exchange to open your order page with the live rate and deposit details.
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Transfer OP to the address on your order — after confirmations, THETA is sent to your wallet automatically.
What do you need to know?
- Optimism confirmations are usually fast — often within a minute.
- Send OP on Optimism mainnet only — not Ethereum, Base, or Arbitrum unless your order says otherwise.
- Use an Optimism-compatible wallet and address (0x…). Leave enough ETH on Optimism for gas if sending ERC-20 tokens.
- THETA not visible yet? Wait a few minutes, resync your wallet, then contact support with your order ID if the payout tx is already listed.
Optimism — Ethereum L2 with low fees
OP is the governance token of Optimism — an Ethereum rollup with fast, low-cost transfers and deep Superchain liquidity.
OP on Optimism mainnet
Use an Optimism wallet for deposits. L1 Ethereum or other L2 sends may not be credited.
Leave enough ETH on Optimism for gas when moving OP or other tokens.
Theta Network
Always match THETA on Theta mainnet when you send or receive — wrong-network transfers may not be credited.
Receiving THETA
Your wallet must be on Theta mainnet.
Allow a few minutes after the order shows sent before opening support.
Before you swap
Avoid wrong-network deposits and address format mistakes — read these guides first.
Coin swap hubs
More no-KYC swap pairs and guides for each asset.
Frequently asked questions
Do I need KYC to swap OP to THETA?
No. SendSwap is a non-custodial instant exchange — no account, no ID checks, and no KYC for Optimism to Theta Network swaps.
How long does OP to THETA take?
Most swaps finish in 1–5 minutes. Timing depends on Optimism mainnet and Theta mainnet confirmations and current network load.
Is OP to THETA non-custodial?
Yes. You send OP from your wallet and receive THETA directly to the address you provide — SendSwap never holds your keys.
What if I send OP on the wrong network?
Always match the network on your order page (Optimism mainnet for deposits). Wrong-network sends may not be credited — read our swap safety guides before you send.