APIs

Clients interact with Avalanche through APIs calls to nodes.

Numeric parameters in API calls may be given as strings (e.g. "5" or 5 are both ok for an integer argument). Numeric return values are always given as strings (e.g. "5" rather than 5).

In examples, API calls are made to a node listening for HTTP traffic on 127.0.0.1:9650.

AVM (X-Chain) API

The X-Chain, Avalanche’s native platform for creating and trading assets, is an instance of the Avalanche Virtual Machine (AVM). This API allows clients to create and trade assets, including AVAX, on the X-Chain as well as other instances of the AVM.

EVM (C-Chain) API

Allows clients to interact with the C-Chain, Avalanche’s main EVM instance, as well as other EVM instances.

P-Chain API

Allows clients to interact with the P-Chain (Platform Chain), which maintains Avalanche’s validator set and handles blockchain and subnet creation.

Keystore API

Allows clients to use an Avalanche node’s built-in keystore.

Health API

Allows client to check a node’s health.

Metrics API

Allows clients to collect Prometheus metrics about a node.

Admin API

Allows clients to examine a node’s internal state, set of connections, and similar internal protocol data.

Info API

Allows clients to examine basic information about a node.

Timestamp API

Allows clients to interact with the Timestamp Chain, a simple timestamp server.