@amcp-protocol/sdk

TypeScript SDK for AMCP. Thin by law: it speaks the protocol fluently and gets out of the way.

npm install   # devDeps only — runtime dependencies: zero
npm run build # tsc → dist/
npm test      # vitest: all fixtures vs live reference + SDK behavior + drift tripwire
npm run check # tsc --noEmit

import { TaskClient, SessionClient, IdentityClient, DisputeClient } from "@amcp-protocol/sdk";

const tasks = new TaskClient({ baseUrl: "https://agent.example" });
const { receipt } = await tasks.run("score_lead", { lead: {...} },
  { idempotencyKey: crypto.randomUUID(), trial: true });

const id = new IdentityClient({ baseUrl: "https://agent.example" });
await id.verifyReceiptViaDirectory(receipt); // offline, advertised key

Constraints (enforced, not aspirational)

• Zero runtime dependencies — dependencies: {}.
• Node 20+ and Workers — no node:* imports in src/; WebCrypto for Ed25519.
• Types mirror schemas/ — test/schema-drift.test.ts fails CI on drift.
• Wire proven by fixtures — test/fixtures.test.ts replays every fixture against the reference.