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Price streaming works without an API key, on a fixed list: one flagship asset per chain, 36 in total. These are the showcase streams. They exist so you can see real pushed prices before you sign up for anything. Streaming is three separate products, and only the first is open keyless: A free API key removes both restrictions. With a key you can stream any token we index on all three endpoints, up to 10 concurrent connections per IP. Nothing else changes: the transport, the event shape and the delivery rate are the same either way. See pricing for how streaming is metered.

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The list

Every row links to a live stream for that chain, running in the browser with no key and no signup. Verified against the streaming gateway on 2026-08-06.

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Subscribing to one

Take the chain id and the contract address from the row you want. No key, no headers:
Each token_price frame carries the asset, the chain and the current USD price. Updates are pushed when a swap moves the price, not on a fixed interval, so a heavily traded asset delivers tens of frames a minute while a quiet one can sit still for minutes. That is the market being quiet, not the connection being broken.

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Requesting an asset that is not on the list

Without a key, a subscription is accepted only for the assets above. The POST path rejects the whole subscribe on the first asset outside the list rather than returning a partial result, so a batch that mixes listed and unlisted assets fails as a unit. Register a free key and the restriction disappears.

Stream any token

A free API key takes you off this list: any token we index, up to 10 concurrent streams per IP. No card.