Hermes
Guide to Hermes API endpoints for real-time Pyth price delivery
Hermes is an open-source service that listens to the Pythnet and the Wormhole Network for Pyth price updates, and serves them via a convenient web API.
Hermes allows users to easily fetch price updates via a REST API, or subscribe to server-side streaming updates.
Public Endpoints
The Pyth Data Association operates a public endpoint for Hermes, which can be used to test integrations with Pyth Network:
URL: https://hermes.pyth.network
Hermes Beta
For developers building on Aptos testnet, Sui testnet or Near testnet, please use the Hermes Beta endpoint: URL: https://hermes-beta.pyth.network
Rate limits
In order to maximize the reliability of the Public Hermes API, a request rate limit is enforced. All endpoints limits are set at 10 requests every 10 seconds per IP address. Clients issuing request above the limit will receive a 429 (Too Many Requests) response for the subsequent 60-second period.
For production deployments, developers integrating with Pyth Network are strongly encouraged to use Node Providers for maximum resilience and decentralization.
Node Providers
The following node providers offer Hermes: