Your API key allows you to access the Stream API and all V1 and V2 endpoints. You can use your API key on mainnet, but the testnet endpoints do not require keys.

How do I get an API key?

Follow these steps to request an API key. Each account can generate up to three API keys.

1. Onopensea.io, hover over yourProfile icon and selectSettings.
2. On the left side of the page, clickDeveloper.
3. ClickVerify in profile to verify your email address. Anonymous email addresses are not supported at this time.
4. After verifying your email address, navigate back to theDeveloper section and clickGet access.

5. Fill out yourOrganization Name,Website, andIntended use of the OpenSea API.

6. ClickSubmit.
7. Fill out the Recaptcha.
8. You’ll be directed back to the Developer section in your Account settings. ClickCreate API key.
9. Name your key and clickCreate new key.

You’ll be able to see your API key and the key’s expiration date. To use your API key, include it in the headers of your request in theX-API-KEY field.

If you can access the Developer tab, and after going through the flow you still see a message stating you cannot access the developer hub at this time, you can file asupport ticket.

Rate limits

We put rate limits in place to protect our platform and improve the availability of our API. If you’ve hit rate limits when fetching marketplace data, we recommend checking your call patterns and using theStream API and V2 endpoints to make fewer calls.

Select users are eligible for a rate limit increase. You can apply for a rate limit increase usingthis form.

Existing API Keys

If you already have an API key, it won’t show in the Developer section of your profile, but it will function as normal until further notice.

Expiring Keys

If your API key is expiring soon, we recommend applying for a new key, replacing your old key before it expires, and deleting the previous one.

More information

For product updates to the OpenSea API you can check ourChangelog or follow us on Twitter:https://twitter.com/apiopensea

If you have questions that aren’t answered in our developer docs, you can join ourDiscord and post in the#dev-support channel.