I am wondering if it's possible to use the 0x API Swap/Quote endpoint and further signing the transaction to the blockchain without an api-key for the API requests?
Are there any limitations if I do not have an API key?
Thanks.
No API key is needed to use our endpoints.
The API is intended for public use, so if you're just testing it out or building demo apps, it will cover those needs.
If you're an integrator who needs production-level rate limits, please fill out this form and our team will review and get back to you.