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Real-time crypto price data. Updates arrive approximately once per second per feed, streamed directly over WebSocket. Subscribe with "type": "chainlink" to receive price feed events.
For the full guide including all 7 available feeds, filtering, and examples, see the Crypto Prices section.

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Subscribing

With feed filter (only receive specific feeds):
Omit the feeds filter to receive all available price feeds.

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Response

Price feed subscriptions do not include a snapshot. Events start arriving with the next price observation (~1 second).

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Fields

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string
required
Always "price_feed".
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string
required
Feed name (e.g. "BTC/USD", "ETH/USD").
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number
required
Observation timestamp in Unix seconds.
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object
required

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Available feeds

See Available Feeds for detailed per-feed documentation.

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Dual subscription

Price feeds run on the same WebSocket connection as settlement subscriptions. Send both subscribe messages to receive both:
Events arrive interleaved. Use the type field ("settlement" vs "price_feed") to route them in your application.