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- ---
- title: "Pyth API Reference: On- and Off-Chain Developer Tools"
- description: >-
- Pyth Core’s API reference covers EVM, Aptos, CosmWasm, and Hermes. It provides
- interactive documentation and guides for both on-chain and off-chain
- integration.
- full: false
- index: false
- ---
- # API Reference
- The API reference is a comprehensive guide to the various APIs -- both on- and off-chain -- that developers can use in their applications.
- Developers can consult this reference to better understand what methods exist and what they do.
- The API reference is interactive, so developers can try out the APIs from the website to better understand their behavior.
- The following on-chain contracts are documented in the API reference:
- - [EVM](api-reference/evm)
- - [Aptos](api-reference/aptos)
- - [CosmWasm](api-reference/cosmwasm)
- Hermes also has interactive API documentation hosted by the service itself:
- - [Hermes](https://hermes.pyth.network/docs/)
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