Agentline.cloud
Empowering AI with Real Phone Call 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: Empowering AI with Real Phone Call Capabilities Full Skill content: https://321skill.com/skills/agentline-cloud-x-3/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 make or receive phone calls. In practical development, building intelligent customer service, outbound notifications, or voice assistants often requires integrating complex telephony infrastructure. AgentLine's cloud API simplifies this into a set of RESTful interfaces, eliminating the need to manage servers or webhooks.
Usage is straightforward: first, obtain an API key from the AgentLine platform. Then, use the API to create a voice Agent, select an area code to purchase a phone number, set the voice style (male/female), and finally, start background event polling to receive incoming calls and SMS. After setup, you can use natural language instructions to have the AI automatically make calls, view call transcripts, manage numbers, and handle billing. The entire configuration process takes just minutes.
It is ideal for AI application developers who need telephony capabilities, especially teams building intelligent customer service, outbound marketing, identity verification, or mobile office scenarios. For developers already using AI coding agents (like Claude or Cursor), they can directly perform operations such as making calls, managing numbers, and checking call costs through natural language within the conversation, significantly boosting development efficiency.
It is recommended to carefully read the setup steps in the README before first use to ensure you complete API key configuration, agent creation, number selection, and event polling startup in sequence. Note that the system prompt is completely replaced rather than appended, so the full context must be written into the prompt for each call, as the AI does not retain memory across calls. Additionally, currently only Hosted Mode is supported; custom audio stream processing is not available.
Key Features
Unlike traditional telephony APIs such as Twilio, AgentLine employs a hosted model where the AI autonomously handles the entire call flow. You don't need to build your own voice server or process webhook events; you simply create tasks via the API and retrieve the transcription results.
Limitations
Relies on the AgentLine cloud service and requires a valid API key; currently only supports Hosted Mode, with no support for custom audio stream processing; the system prompt must be fully set for each call, with no memory retained across calls.
FAQ
Do I need my own server or webhook?
No, AgentLine uses a hosted model where the AI automatically handles calls. You only need to create tasks and retrieve results via the API.
How do I set up the voice?
After creating an agent, set the voice_id via a PATCH request. Supports presets like female-1, female-2, male-1, or a Cartesia voice UUID.
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-x-3/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-x-3/raw/index.md