Installation

Install the core package and one provider adapter.

Install @postbote/core together with the adapter you want to use.

pnpm add @postbote/core @postbote/adapter-resend

Postbote is ESM-only and requires Node.js 20.19 or later. The HTTP adapters have no provider SDK dependency and are the appropriate choice for fetch-compatible edge runtimes.

Add a plugin

Plugins are separate packages. For example, add failover only when you need a fallback provider.

pnpm add @postbote/plugin-failover @postbote/adapter-postmark

Use secrets safely

Load API keys from server-only environment variables. Do not import Postbote or an adapter into browser code, and never expose a provider key through a NEXT_PUBLIC_ variable.