diff --git a/examples/nlboot/manifest.json b/examples/nlboot/manifest.json
new file mode 100644
index 0000000..ac4f76a
--- /dev/null
+++ b/examples/nlboot/manifest.json
@@ -0,0 +1,15 @@
+{
+  "manifest_id": "manifest-demo-1",
+  "boot_release_set_id": "boot/demo",
+  "base_release_set_ref": "release/demo",
+  "boot_mode": "recovery",
+  "artifacts": {
+    "kernel_ref": "https://example.invalid/kernel",
+    "initrd_ref": "https://example.invalid/initrd",
+    "rootfs_ref": "https://example.invalid/rootfs"
+  },
+  "signature_ref": "urn:srcos:signature:demo",
+  "signer_ref": "trusted-key-1",
+  "signature_algorithm": "rsa-pss-sha256",
+  "crypto_profile": "fips-140-3-compatible"
+}
diff --git a/examples/nlboot/token.json b/examples/nlboot/token.json
new file mode 100644
index 0000000..57b5e24
--- /dev/null
+++ b/examples/nlboot/token.json
@@ -0,0 +1,7 @@
+{
+  "token_id": "token-demo-1",
+  "purpose": "recovery",
+  "expires_at": "2026-04-26T01:00:00Z",
+  "release_set_ref": "release/demo",
+  "boot_release_set_ref": "boot/demo"
+}
diff --git a/pyproject.toml b/pyproject.toml
index b7268e6..e931cf2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,6 +4,9 @@ version = "0.1.0"
 description = "SourceOS Boot/Recovery: BootReleaseSet, secure live boot, rollback, and nlboot evolution."
 requires-python = ">=3.11"
 
+[project.scripts]
+sourceos-boot = "sourceos_boot.cli:main"
+
 [tool.pytest.ini_options]
 pythonpath = ["src"]
 testpaths = ["tests"]
diff --git a/src/sourceos_boot/cli.py b/src/sourceos_boot/cli.py
new file mode 100644
index 0000000..0bc8a9b
--- /dev/null
+++ b/src/sourceos_boot/cli.py
@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+"""SourceOS Boot command-line helpers."""
+
+from __future__ import annotations
+
+import argparse
+import hashlib
+import json
+import sys
+from pathlib import Path
+from typing import Any
+
+from .adapter import DeviceClaim, SourceOSBootAdapter
+
+
+def load_json(path: Path) -> dict[str, Any]:
+    data = json.loads(path.read_text(encoding="utf-8"))
+    if not isinstance(data, dict):
+        raise ValueError(f"expected JSON object in {path}")
+    return data
+
+
+def canonical_json_sha256(data: dict[str, Any]) -> str:
+    payload = json.dumps(data, sort_keys=True, separators=(",", ":")).encode("utf-8")
+    return "sha256:" + hashlib.sha256(payload).hexdigest()
+
+
+def adapt_nlboot(args: argparse.Namespace) -> int:
+    manifest_doc = load_json(args.manifest)
+    token_doc = load_json(args.token)
+    adapter = SourceOSBootAdapter()
+
+    claim = DeviceClaim(
+        device_id=args.device_id,
+        public_key_fingerprint=args.public_key_fingerprint,
+        platform=args.platform,
+        nonce=args.nonce,
+    )
+    authorization = adapter.authorization_from_nlboot_token(token_doc, correlation_id=args.correlation_id)
+    patch = adapter.boot_release_set_patch_from_nlboot_manifest(manifest_doc)
+    evidence = adapter.build_evidence_from_nlboot_manifest(
+        claim=claim,
+        authorization=authorization,
+        manifest_doc=manifest_doc,
+        manifest_hash=canonical_json_sha256(manifest_doc),
+        verification_result=args.verification_result,
+    )
+
+    output = {
+        "apiVersion": "sourceos.dev/v1",
+        "kind": "NlbootAdapterOutput",
+        "authorization": authorization.to_dict(),
+        "bootReleaseSetPatch": patch,
+        "evidence": evidence.to_dict(),
+    }
+    print(json.dumps(output, indent=2, sort_keys=True))
+    return 0
+
+
+def build_parser() -> argparse.ArgumentParser:
+    parser = argparse.ArgumentParser(description="SourceOS Boot helpers")
+    subparsers = parser.add_subparsers(dest="command", required=True)
+
+    adapt = subparsers.add_parser("adapt-nlboot", help="Convert nlboot manifest/token JSON into SourceOS handoff objects")
+    adapt.add_argument("--manifest", type=Path, required=True)
+    adapt.add_argument("--token", type=Path, required=True)
+    adapt.add_argument("--device-id", required=True)
+    adapt.add_argument("--public-key-fingerprint", required=True)
+    adapt.add_argument("--platform", required=True)
+    adapt.add_argument("--nonce", required=True)
+    adapt.add_argument("--correlation-id", required=True)
+    adapt.add_argument("--verification-result", choices=["pass", "fail", "unknown"], default="pass")
+    adapt.set_defaults(func=adapt_nlboot)
+    return parser
+
+
+def main(argv: list[str] | None = None) -> int:
+    parser = build_parser()
+    args = parser.parse_args(argv)
+    try:
+        return args.func(args)
+    except Exception as exc:  # noqa: BLE001
+        print(f"sourceos-boot: {exc}", file=sys.stderr)
+        return 2
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/tests/test_cli.py b/tests/test_cli.py
new file mode 100644
index 0000000..1ef0819
--- /dev/null
+++ b/tests/test_cli.py
@@ -0,0 +1,31 @@
+import json
+from pathlib import Path
+
+from sourceos_boot.cli import main
+
+
+def test_adapt_nlboot_cli_emits_handoff_objects(capsys) -> None:
+    root = Path(__file__).resolve().parents[1]
+    rc = main([
+        "adapt-nlboot",
+        "--manifest",
+        str(root / "examples" / "nlboot" / "manifest.json"),
+        "--token",
+        str(root / "examples" / "nlboot" / "token.json"),
+        "--device-id",
+        "device-1",
+        "--public-key-fingerprint",
+        "sha256:demo",
+        "--platform",
+        "apple-silicon",
+        "--nonce",
+        "nonce-1",
+        "--correlation-id",
+        "corr-1",
+    ])
+    assert rc == 0
+    output = json.loads(capsys.readouterr().out)
+    assert output["kind"] == "NlbootAdapterOutput"
+    assert output["authorization"]["bootReleaseSetRef"] == "boot/demo"
+    assert output["bootReleaseSetPatch"]["channels"] == ["recovery"]
+    assert output["evidence"]["deviceId"] == "device-1"