Question 1

What is a Pyth price feed?

Accepted Answer

A Pyth price feed is an aggregated real-time price published on-chain by a network of first-party data providers (exchanges, market makers, trading firms). Each feed has a unique feed ID and delivers price, confidence interval, exponent and publish timestamp.

Question 2

How fresh are Pyth prices on PythFeeds?

Accepted Answer

PythFeeds reads directly from the Pyth Hermes API, which typically updates every 400ms. Each feed's publish time is surfaced as a green/amber/red staleness pill (<2s / <10s / >10s).

Question 3

What is Hermes latency?

Accepted Answer

Hermes latency is the round-trip time between your browser and the Pyth Hermes endpoint (hermes.pyth.network). It measures how fast your client can fetch the latest price updates.

Question 4

How many feeds does Pyth have?

Accepted Answer

Pyth Network currently publishes 600+ price feeds across crypto, US equities, metals, commodities, FX and interest rates. The full catalog is streamed live on this page.

Question 5

Are Pyth feeds free to read?

Accepted Answer

Yes, reading Pyth prices from the Hermes API is free. On-chain, pulling a price update costs a small gas fee (returned by getUpdateFee in the IPyth contract).

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