Asset Canister

What This Is

The asset canister hosts static files (HTML, CSS, JS, images) directly on the Internet Computer. This is how web frontends are deployed on-chain. Responses are certified by the subnet, and HTTP gateways automatically verify integrity, i.e. that content was served by the blockchain. The content can also be verified in the browser -- not a centralized server.

Prerequisites

• @icp-sdk/canisters (>= 3.5.0), @icp-sdk/core (>= 5.0.0) — for programmatic uploads

Canister IDs

Asset canisters are created per-project. There is no single global canister ID. After deployment, your canister ID is stored in .icp/data/mappings/ (per environment).