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.
| Title | Description |
|---|---|
| Issuing API Calls | This guide explains how to make calls to APIs exposed by Avalanche nodes. |
| The Platform Chain (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. |
| The Contract Chain (C-Chain) API | Allows clients to interact with the C-Chain, Avalanche’s main EVM instance, as well as other EVM instances. |
| The Exchange Chain (X-Chain) API | Allows clients to create and trade assets, including AVAX, on the X-Chain as well as other instances of the AVM. |
| The Admin API | Allows clients to examine a node’s internal state, set of connections, and similar internal protocol data. |
| The Auth API | Allows clients to manage the creation and revocation of authorization tokens. |
| The Health API | Allows clients to check a node’s health. |
| The Index API | Fetch transactions, vertex, or block by ID. |
| The Info API | Allows clients to examine basic information about a node. |
| The IPC API | Allows users to create UNIX domain sockets for blockchains to publish to. |
| The Keystore API | Allows customers to use the embedded Keystore file of an Avalanche node. |
| The Metrics API | Allows clients to get statistics about a node’s health and performance. |