Overview
agentphone is an open-source integrations skill for Claude Code and compatible agents, published by sickn33. Its author describes it as: “Build AI phone agents with AgentPhone API. Use when the user wants to make phone calls, send/receive SMS, manage phone numbers, create voice agents, set up webhooks, or check usage — anything related to telephony, pho…”. The project has 47k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add sickn33/agentic-awesome-skills`.
What agentphone does
AgentPhone is an API-first telephony platform for AI agents. Give your agents phone numbers, voice calls, and SMS — all managed through a simple API.
What’s inside
The SKILL.md for agentphone is organised into these sections:
- Detailed Guide
- When to Use
- Rules
- Security
- Phone Number Format
- Confirm Before Destructive Actions
- Best Practices
- Limitations
Installation
Add agentphone to your agent with:
/plugin marketplace add sickn33/agentic-awesome-skillsReview a skill’s source before installing it — skills can instruct your agent to run commands. This command comes from the skill’s public repository, which is the source of truth for setup steps. New to skills? Read how to install Claude Code skills.
Supported agents
- Claude Code — ships a claude code plugin marketplace
- Codex — declared in the repository topics
- Cursor — declared in the repository topics
- Gemini CLI — declared in the repository topics
- Antigravity — declared in the repository topics
License
agentphone is published under the MIT license.
Strengths
- Clear MIT license — safe to read and adapt within its terms
- Ships in sickn33/agentic-awesome-skills, an established project with 46,693 GitHub stars
- Works with Claude Code, Codex, Cursor, Gemini CLI, Antigravity
- Actively maintained — repository updated in the last 30 days
- Its repository gained 2,482 GitHub stars over the last 52 days
Author
Topics
Frequently asked questions
- What does agentphone do?
- Build AI phone agents with AgentPhone API. Use when the user wants to make phone calls, send/receive SMS, manage phone numbers, create voice agents, set up webhooks, or check usage — anything related to telephony, phone numbers, or voice AI.
- How do I install agentphone?
- Run /plugin marketplace add sickn33/agentic-awesome-skills in your agent, then reload your skills. Review the source at https://github.com/sickn33/agentic-awesome-skills before installing.
- Is agentphone free to use?
- Yes. agentphone is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
- Which agents does agentphone work with?
- agentphone lists Claude Code, Codex, Cursor, Gemini CLI, and Antigravity — named in its SKILL.md, its plugin marketplace or its repository topics. Skills use the portable SKILL.md format, so other agents that read that format may load it too.
- Where does agentphone come from?
- agentphone ships inside sickn33/agentic-awesome-skills, a repository that contains 70 catalogued skills in total. The repository's 46,693 GitHub stars apply to that whole collection, not to this skill on its own.
