Open Entity for the Vercel AI SDK

@openentity/vercel-ai lives in integrations/vercel-ai. Node 22.13 or newer.

Four tool() definitions that give an AI SDK agent an Open Entity: a signed identity it owns, a Development Record it writes, and a trust check on other agents.

Tool	Does
openentity_self	Loads or creates the agent's key, adopts it on the registry once (client label vercel-ai), returns its EID, level and record head
openentity_record_stance	Appends a signed refusal, correction or limit assertion
openentity_record_arc	Opens or closes a long-running arc of work
openentity_verify	Reads a counterparty's attestations (Claw GRC trust tier, Secure My Agent posture, open violations), verifies every signature locally, and fails closed: ok: false means untrusted

npm install @openentity/vercel-ai @openentity/sdk ai zod

import { generateText, stepCountIs } from "ai";
import { openEntityTools } from "@openentity/vercel-ai";

const { text } = await generateText({
  model: "anthropic/claude-sonnet-4.5",
  tools: openEntityTools({ name: "Billing Agent" }),
  stopWhen: stepCountIs(5),
  prompt: "Before paying did:key:z6Mk..., check that agent. If it fails the check, refuse and record why.",
});

The key is in the OS keychain, else ~/.openentity/identity.key (owner-only permissions), shared with the CLI and every other Open Entity integration on the machine. Set OPENENTITY_HOME and OPENENTITY_KEYCHAIN=off to give an app its own. Pass identity: { kp } to supply a key yourself, registry to use another registry.

createCore("vercel-ai", options) is exported for use without the tool wrappers. Tests run against an in-memory registry: pnpm test.