How do I install the Keychat skill?

Run npx skillmds@latest add modbender/keychat in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Keychat safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: WARNING. Capability flags: makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Keychat?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Keychat free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Keychat?

modbender (@modbender) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Keychat by modbender — Agent Skill

Name: Keychat
Rating: 4.2 (5 reviews)
Author: modbender

Keychat

Install Keychat — sovereign E2E encrypted messaging for OpenClaw agents via Signal Protocol over Nostr relays. Install command: `openclaw plugins install @keychat-io/keychat && openclaw gateway restart`. Use when the user wants to add Keychat or set up encrypted messaging for their agent.

modbender Updated Sep 9, 2026 12 repo stars

File contents

Install Keychat

openclaw plugins install @keychat-io/keychat
openclaw gateway restart

Supported platforms: macOS (ARM/x64), Linux (x64/ARM64).

The plugin automatically downloads the bridge binary, configures channels.keychat in openclaw.json, and generates a new Nostr identity on first start.

The agent will send its Keychat ID (npub1...), contact link, and QR code to the user's active chat after first install.

Security Warnings

The scanner may show three warnings during install. All are expected:

bridge-client.ts — Spawns a Rust sidecar for Signal Protocol and MLS Protocol encryption (Keychat's crypto is implemented in Rust, needs bridging to Node.js)
keychain.ts — Stores identity mnemonics in the OS keychain (macOS Keychain / Linux libsecret) for security
notify.ts — Notifies the agent on first startup so it can send the Keychat ID and QR code to the user

Upgrade

Tell the agent "upgrade keychat" in any chat, or manually:

openclaw plugins install @keychat-io/keychat@latest
openclaw gateway restart

Connect

After install, the user can add the agent as a Keychat contact:

Open the Keychat app → tap Add Contact
Scan the QR code, or paste the agent's npub
The agent automatically accepts and establishes an encrypted session

The user can also ask the agent "what's my Keychat ID" at any time to get the npub, link, and QR code.

More info: github.com/keychat-io/keychat-openclaw

Frequently asked questions