See it in Action
Call +1 (734) 471-3677 to talk to a live AI agent hosted on AgentLine.
Install in 30 Seconds
Let your agent sign itself up — or install the skill with your API key.
Paste it into any agent — it signs itself up, grabs a number, and calls you back.
Ways to Integrate
Python SDK, REST from Node.js, a single prompt, or MCP — pick whatever fits your workflow.
Loved by Builders
Developers are giving their AI agents a voice — here's what they're saying.
It was incredibly easy to set up in Hermes. I saw someone post an article about AgentLine and Prava and fed Hermes the article. She had it all set up and told me exactly what to do on my end to finish the setup. That really is the way to go. I probably wouldn't have had time to mess with it otherwise.
had my agent calling me in like 10 minutes. insanely easy
The pricing is very comparable and it can be used at large scale as support in my company.
The fastest, most reliable way to give an AI agent a real phone number
Finally, telephony that speaks my agent's language. AgentLine is a breakthrough.
Frequently Asked Questions
How can I give my AI agent a phone number?
Connect AgentLine through MCP, the agent skill, or the REST API. Create a phone agent, set its instructions, fund the account, and provision a US or Canada number, included in plans from $20/month. It can make and receive calls and send and receive SMS; usage beyond the plan is $0.12/min and $0.02 per SMS. Your runtime needs access to the connected tools or API; a live link to its private context uses the relay or a webhook.
What MCP server lets an AI agent make phone calls?
AgentLine runs a hosted MCP server at https://api.agentline.cloud/mcp. Add it to Claude Code, Cursor, Codex or any MCP client with an AgentLine API key, and the agent gets tools to provision a US or Canada number, place and receive calls, and read transcripts. Sending SMS goes through the REST API on the same number.
How much does it cost to give an AI agent a phone number?
Plans start at $20/month and include one US or Canada number, 100 call minutes and 400 SMS. Beyond the plan, calls are $0.12/minute (per-second after a one-minute minimum), texts are $0.02 each in either direction, and extra numbers are $3/month.
Can an AI agent send and receive text messages?
Yes. Every AgentLine number sends and receives SMS. Your agent sends a text through the REST API (POST /v1/messages) and reads incoming texts, including one-time verification codes, from the API or an event webhook. Voice calls and texts share the same number.
Can Claude Code, Cursor or Codex make phone calls?
Yes. Connect the AgentLine MCP server or install the AgentLine skill, and the coding agent can call a number and answer calls on its own number; texting uses the REST API. AgentLine's hosted voice agent handles the live conversation and saves a transcript your agent can read afterwards.
What countries are supported?
US and Canadian numbers are supported, subject to available inventory.
How should I compare AgentLine with Retell, Vapi or Bland?
Choose by the workflow you need: phone access for an existing agent, voice-provider configuration, human transfers, and business integrations. AgentLine provides hosted calls through REST, MCP and a skill. Test the required outcomes and total costs before choosing a platform.
How does voice calling work?
AgentLine's hosted voice agent handles the conversation using your instructions and saves the transcript. Connect your own runtime through the relay or a webhook when a call needs a live lookup or task. A hosted call does not require your runtime to generate every spoken reply.
What's the difference from Twilio?
Twilio is a general-purpose telecom API. AgentLine is purpose-built for AI agents — unified webhooks, automatic transcription, skill-based installation, and a relay architecture that doesn't require you to manage WebSocket streams.
Can I use my existing phone number?
No. Calls and texts run on numbers you provision through AgentLine. Each plan includes at least one US or Canada number, and you can add more for $3/month each.
How do I handle incoming calls?
Give the phone agent instructions for inbound callers: what to answer, what to collect and when to hand off. Each call is transcribed, and a webhook or the relay can send live lookups or follow-up tasks to your own runtime.
Are there ready-made voice agent templates?
Yes. Clone a working sales, support, healthcare booking, legal intake, home services, real estate, salon, insurance, scheduling, 2FA, after-hours, or recruiting agent at agentline.cloud/build. Each template includes the system prompt plus Python and Node code.
