@signet-auth/vercel-ai

Vercel AI SDK callbacks for Signet. Add a small callback bundle, sign every tool call, and keep receipts in memory without adding MCP-specific code.

Best for:

• Apps using generateText() and tool calling in the Vercel AI SDK
• Collecting signed receipts from tool calls with minimal integration work
• Keeping Vercel AI-specific logic out of your lower-level signing code

Use another package if:

• You need MCP transport signing: @signet-auth/mcp
• You need MCP execution-boundary verification: @signet-auth/mcp-server
• You want lower-level primitives only: @signet-auth/core

Install

npm install ai @signet-auth/vercel-ai @signet-auth/core

Usage

import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";
import { createSignetCallbacks } from "@signet-auth/vercel-ai";
import { generateKeypair } from "@signet-auth/core";

const { secretKey } = generateKeypair();
const callbacks = createSignetCallbacks(secretKey, "my-agent");

const result = await generateText({
  model: openai("gpt-4o"),
  tools: { myTool },
  ...callbacks,
  prompt: "Use the tool to ...",
});

console.log(callbacks.receipts); // signed receipts for every tool call

Related packages

• @signet-auth/core — lower-level signing and verification primitives
• @signet-auth/mcp — client-side signing transport for MCP
• @signet-auth/mcp-server — server-side execution-boundary verification for MCP
• Full documentation & all SDKs

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