Agentline.cloud
Enabling AI with Real Phone Call and SMS Reception Capabilities
Install & Use
Copy this prompt and send it to your AI assistant (Claude / Cursor / TRAE / Codex / WorkBuddy etc.) to auto-install:
Help me install this AI Skill: Agentline.cloud. It is used for: Enabling AI with Real Phone Call and SMS Reception Capabilities Full Skill content: https://321skill.com/skills/agentline-cloud/raw/index.md Read that page and install it.
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This Skill addresses the challenge of AI agents being unable to directly communicate with the real world via phone. In practical development, developers need AI to initiate phone calls, receive SMS messages, and manage phone numbers, but traditional solutions require setting up servers, handling webhooks, and SIP protocols, which pose a high barrier to entry. AgentLine provides a one-stop cloud telephony API, giving AI agents complete phone capabilities.
Usage is straightforward: simply set the AGENTLINE_API_KEY environment variable, then follow the guide to create an Agent, select an area code to purchase a number, set the voice gender, and finally start the background event polling script. After that, you can use natural language commands to have the AI make calls, view SMS, manage agents, query billing, etc. All interactions are handled automatically via the API.
It is ideal for teams or individuals building intelligent customer service, telemarketing, voice notifications, or number management systems—especially developers already using AI coding assistants (like Claude or Cursor) to build agent applications but lacking telephony integration. No additional infrastructure is needed; your AI can have a real phone number in minutes.
When creating an Agent, it is recommended to first ask the user for their preferred area code and voice gender, and ensure the background polling is started to avoid missing calls and messages. Note that it currently only supports Hosted Mode, where all calls are automatically run by AgentLine servers, and custom audio stream transmission is not yet supported. Also, ensure your API key is kept secure to prevent leaks.
Key Features
Unlike Twilio, AgentLine is designed specifically for AI agents, eliminating the need for self-hosted servers and webhooks. It provides a Hosted Mode that automatically handles voice conversations—you only need to set an API Key to get started, and it includes a complete, built-in workflow for AI voice interaction.
Limitations
Requires the `AGENTLINE_API_KEY` environment variable (starting with `sk_live_`). Only supports Hosted Mode and relies on AgentLine's cloud services; offline use is not possible.
FAQ
What are the prerequisites for using this?
You need to register an account on AgentLine.cloud to obtain an API Key (starting with sk_live_) and set the AGENTLINE_API_KEY environment variable.
How do I set the AI voice gender?
After creating an Agent, you can select female-1, female-2 (female voices) or male-1 (male voice) by updating the voice_id via the PATCH API.
Installation guide for AI assistants
If your AI coding assistant (Claude Code, Cursor, TRAE etc.) can see this page, send it this message to auto-install:
Visit https://321skill.com/skills/agentline-cloud/raw/index.md to read the original Skill definition (Markdown format) for Agentline.cloud, and install it according to the instructions.
Raw Markdown URL for AI: /skills/agentline-cloud/raw/index.md