detectLocalProviders
Reports each on-device provider's availability right now.
Reports each on-device provider’s availability right now. Reach for it to build a settings screen (“this browser can run X”); createLocalAdapter uses it to pick a provider.
Import
import { detectLocalProviders } from "@webmcp-agents/local-agent";Example
import { detectLocalProviders } from "@webmcp-agents/local-agent";
// What could run here, for a settings screen. Nothing downloads.
const found = await detectLocalProviders();
for (const { id, availability } of found) {
console.log(id, availability.state);
}
// prompt-api unavailable
// transformers needs-downloadOptions
detectLocalProviders(providers?) takes one argument.
| Name | Type | Default | Description |
|---|---|---|---|
providers |
readonly LocalProvider[] |
[createPromptApiProvider(), createTransformersProvider()] |
The providers to check, in order. Pass the instances your adapter uses to see what it sees. |
Returns
A promise of one entry per provider, in the same order: { id: string; availability: ProviderAvailability }. A provider whose availability() rejects is reported as { state: "unavailable", reason: String(error) }.
See ProviderAvailability for the four states.
Notes
- Checking never downloads anything. The transformers provider may request a WebGPU adapter and ask its worker whether the model is in the browser cache.
- The default list creates fresh providers on each call; pass your own to check the instances your adapter uses.