How can I find the lowest fee crypto exchange to swap OP and SEI?

SwapSpace is focused on providing our users with several exchange options for the given pair, so you can always compare offers and choose the cryptocurrency exchange with the lowest fees. We also provide the exchange time estimates and rate the support level of our partners, so that you can take those into consideration and make the best choice for yourself while swapping OP and SEI.

Can I exchange my crypto without KYC on SwapSpace?

We at SwapSpace care about your privacy — this means that SwapSpace itself won’t ask you to go through KYC/AML to swap your cryptocurrency . However, our partners may have different rules — for example, there can be a selective KYC check if your exchange details get you flagged as a potential person of interest.

Are there limits for exchanging OP and SEI?

There is a lower limit, which depends on the partner and usually stays below $20 worth of crypto. Besides that, SwapSpace does not have any limits, so enjoy your crypto swaps!

Instead of exchanging, can I buy SEI? If so, how to buy cryptocurrency?

You can buy a number of different coins on SwapSpace, and we are planning to continuously expand that list! So check the available cryptocurrencies you can buy — if SEI is there, then you have the option to keep your OP and just buy cryptocurrency with your card!

Is there a way to predict cryptocurrency prices - for example, for OP and SEI?

Crypto currency prices are famously volatile, so trying to forecast them is a very daunting task. However, if you like to read what the experts have to say about the future of crypto, you may find those pages interesting: OP price prediction SEI price prediction Remember to always do your own research, though. Have fun!

Swap Optimism (OP) to Sei

Name: Exchange Optimism (OP) to Sei
Brand: SwapSpace
Rating: 4.5 (948 reviews)

If you’re looking to exchange Optimism to Sei coins, you came to the right place! Our mission here at SwapSpace is to provide you with a number of exchange options from our partners, so that you can compare the offers and choose the best crypto exchange for you needs. On this page, you can read more about your coins, look at OP/SEI crypto price dynamics, try our cryptocurrency exchange pairs, and exchange your crypto now — no need to even leave this page!

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OP to SEI live price chart

Both OP price and SEI price are quite volatile. You can see the history of price changes in the cryptocurrency price chart below to help you make the best decision while considering buying crypto.

The current OP cryptocurrency price in SEI is 1.7647883217.

Optimism and Sei market data

OP Price

$0.116981

24H Price Change

1.2%

24H Volume

$94.67M

Market Cap

$269.01M

Circulating Supply

2.3B OP

SEI Price

$0.066286

24H Price Change

24H Volume

$51.5M

Market Cap

$502.44M

Circulating Supply

7.58B SEI

Last updated at 10/8/2026, 3:30:04 PM

Cross-chain swaps from OP to SEI

OP
OP
SEI
SEIEVM
Exchange OP Exchange OP
OP
OP
SEI
SEI
Exchange OP Exchange OP
SEI
SEIEVM
OP
OP
Exchange SEI Exchange SEI
SEI
SEI
OP
OP
Exchange SEI Exchange SEI

OP to SEI conversion rate

Rates from CoinMarketCap updated at 10/8/2026, 3:00:05 PM

Convert OP to SEI

OP	SEI
10 OP	17.8686 SEI	Exchange
20 OP	35.7372 SEI	Exchange
30 OP	53.6058 SEI	Exchange
50 OP	89.3429 SEI	Exchange
100 OP	178.686 SEI	Exchange
500 OP	893.429 SEI	Exchange
1000 OP	1786.86 SEI	Exchange
5000 OP	8934.29 SEI	Exchange
10000 OP	17868.6 SEI	Exchange
100000 OP	178685.8 SEI	Exchange

17.8686

SEI

SEI	OP
100 SEI	55.9641 OP	Exchange
200 SEI	111.928 OP	Exchange
300 SEI	167.892 OP	Exchange
500 SEI	279.821 OP	Exchange
1000 SEI	559.641 OP	Exchange
5000 SEI	2798.21 OP	Exchange
10000 SEI	5596.41 OP	Exchange
50000 SEI	27982.1 OP	Exchange
100000 SEI	55964.1 OP	Exchange
1000000 SEI	559641.4 OP	Exchange

Swap Optimism (OP) to Sei

OP to SEI live price chart

Optimism and Sei market data

Cross-chain swaps from OP to SEI

OP to SEI conversion rate

Convert OP to SEI

Convert SEI to OP

How to exchange OP and SEI on SwapSpace

Choose the top rate/offer

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Transfer funds

Receive your coins

FAQ

How can I find the lowest fee crypto exchange to swap OP and SEI?

Can I exchange my crypto without KYC on SwapSpace?

Are there limits for exchanging OP and SEI?

Instead of exchanging, can I buy SEI? If so, how to buy cryptocurrency?

Is there a way to predict cryptocurrency prices - for example, for OP and SEI?

More OP and SEI exchange pairs

Curious for more?