Add the marketplace
/plugin marketplace add alien-id/agent-idInstall plugins
/pluginRun these commands in Claude Code to add this plugin to your environment. The marketplace must be added before you can install its plugins.
Shared library for Alien Agent ID: crypto primitives, v3 bundle format, universal verifier, SignatureEngine, OIDC, state I/O. Required by every other agent-id-* plugin.
SSH-signed git commits with Agent-ID trailers and v3 proof notes; verify provenance on any commit.
Portable encrypted credential vault with LUKS-style slots (passphrase + agent-key + phone/owner-approval) and typed/domain-scoped credential records.
Local credential-injecting HTTP proxy. Agent calls http://<proxy>/<credname>/<upstream-host>/<path>; proxy materializes the credential by type, validates the host allowlist, and forwards over real HTTPS. Universal across services without TLS interception.
DPoP-signed calls to Alien-aware services: discovery, capabilities, one-shot signed requests.
Universal browser the agent drives fine-grained (click, type, fill forms, upload files, navigate, switch tabs, reach into iframes, handle dialogs, capture downloads, screenshot, run JS) via an accessibility snapshot with element refs, with the logged-in profile sealed in the agent vault. One-time headed login; headless thereafter. Drives the user's installed Chrome via patchright (installed at runtime into the plugin data dir on first session; no browser download). For authenticated sites that block API/OAuth/cookie approaches.