@effect-uai/anthropic

Anthropic Messages API provider for @effect-uai/core.

Implements the LanguageModel contract against Anthropic's Messages API with SSE streaming, including extended thinking surfaced as reasoning_delta events.

Install

pnpm add @effect-uai/anthropic @effect-uai/core effect

ESM-only. Requires [email protected] and @effect-uai/core as peers.

Usage

import { Config, Effect, Layer } from "effect"
import { FetchHttpClient } from "effect/unstable/http"
import { layer as anthropicLayer } from "@effect-uai/anthropic"

const provider = Layer.unwrap(
  Effect.gen(function* () {
    const apiKey = yield* Config.redacted("ANTHROPIC_API_KEY")
    return anthropicLayer({ apiKey })
  }),
)

const layer = Layer.provide(provider, FetchHttpClient.layer)

The layer registers both the provider-typed Anthropic tag and the generic LanguageModel tag.

Docs

https://effect-uai.betalyra.com/providers/anthropic/

License

MIT