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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.

1 Answer 1

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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.

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  • Hi Jess, thanks for your reply. Is access to the 0x Mesh (during a swap) the same with or without an API-Key?
    – Vindberg
    Feb 10 at 19:41
  • Hi Vindberg - Mesh isn't really supported anymore (more details in this README); however, in short, the swap endpoint does automatically aggregate liquidity across all our on-chain and off-chain sources. As a side note, we are actively working on updating the docs to reflect the mesh deprecation. Apologies for the confusion.
    – 0x_jess
    Feb 11 at 1:20
  • Hi again, does this mean that there is no 0x shared orderbook? Or does Matcha run their own? Is something else planned?
    – Vindberg
    Feb 11 at 8:05
  • Hi Vindberg - Ah, I'll try to clarify with some historical context of what I understand. 0x Mesh is not supported anymore, but 0x does have a shared orderbook which can be accesses through our orderbook API.
    – 0x_jess
    Feb 11 at 22:06
  • And if you see the term "relayers" floating around, that was mostly related to SRA, which stands for Standard Relay API, was supported through v3 and has been replaced by /orderbook. The concept of a "relayer" still technically exists, but not in the same way that it was used in relation to Mesh.
    – 0x_jess
    Feb 11 at 22:06

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