CommandLayer SDK

Official SDK repository for reusable CommandLayer receipt tooling.

Scope of this repository

This repository is SDK-only. It focuses on:

• creating receipts,
• canonicalizing receipts,
• hashing receipts (SHA-256),
• signing receipts (Ed25519),
• verifying receipts (Ed25519 + receipt proof hash),
• ENS signer-resolution helpers, and
• utilities/examples for wrapping agent execution with CommandLayer receipts.

It does not contain the VerifyAgent product UI/demo app.

For public paste-and-verify receipt verification, use VerifyAgent: https://github.com/commandlayer/verifyagent

Architecture boundaries

• CommandLayer SDK (this repo): local/developer receipt generation and verification building blocks.
• VerifyAgent: external public verifier (Commons/MIT) for paste-and-verify workflows.
• CommandLayer Commercial: hosted runtime, paid API, x402 flows, indexing, and dashboards.
• Agent Cards: identity/capability metadata used by agents and signer discovery.

Developer flow

1. Install SDK.
2. Wrap agent execution.
3. Generate signed CommandLayer receipt.
4. Verify locally with SDK or publicly with VerifyAgent.
5. Upgrade to Commercial API for hosted/high-volume verification.

Quick Start

npm install @commandlayer/sdk

import { commandlayer } from "@commandlayer/sdk";

const receipt = await commandlayer.run("summarize", {
  text: "Agent receipts prove what happened."
});

const result = await commandlayer.verify(receipt);
console.log(result.valid);

Start here

• Quickstart → QUICKSTART.md
• Full usage → EXAMPLES.md
• TypeScript package docs → typescript-sdk/README.md
• Python package docs → python-sdk/README.md
• Test vectors → test_vectors/README.md
• Changelog → CHANGELOG.md