Dial

What is Dial?

Dial is a communication API that gives AI agents their own real phone numbers. Through one REST API, MCP server, CLI, or SDK, an agent can place and receive voice calls, send SMS and WhatsApp messages, use iMessage, and read one-time codes. Numbers are provisioned in seconds without SIM cards or carrier contracts.

Top Features:

• Instant numbers: provision a real US number for your agent with one API call.
• Voice calls: place outbound calls with live transcription and optional human transfer.
• Verification inbox: receive SMS codes so agents can pass phone-gated signups alone.

Use Cases:

• Customer outreach: let an agent call or text customers with reminders and follow-ups.
• Receptionist: answer inbound calls and texts using your own written instructions.
• Verification: complete two-factor checks during automated signups without a human phone.

Who Can Use Dial?

• Developers: add calling and texting to LangChain, CrewAI, or AutoGen agents.
• Startups: skip carrier paperwork and ship phone features in an afternoon.
• Automation teams: connect Claude Code, Cursor, or Windsurf to real phone lines.

Pricing

• Free credit ($5): loaded automatically at signup, with no credit card required up front.
• Pay-as-you-go ($3 per number): plus $0.13 to $0.22 per call minute and SMS from $0.02.
• iMessage ($250 monthly): a dedicated iMessage identity for agents, billed on pay-as-you-go only.
• Enterprise (contact sales): volume pricing, a dedicated account manager, and an uptime SLA.

Pros and Cons

Pros:

• Speed: a working number is ready in seconds through the API or CLI.
• Channels: voice, SMS, WhatsApp, and iMessage all run through one account.
• Integrations: the SDKs and MCP server plug into popular agent tools.

Cons:

• Metering: call minutes and international SMS add up quickly at scale.
• Limits: until your first top-up, calls cap at five minutes and two at once.
• Pricey iMessage: iMessage numbers cost far more than standard numbers every month.

FAQs:

1) Is a credit card required?

No, every account gets five dollars of credit without a card.

2) Which channels are supported?

Voice calls, SMS, WhatsApp, and iMessage all work through the same API.

3) Does it support MCP clients?

Yes, the MCP server works with Claude Code, Cursor, and Windsurf.

4) Can a human take over a call?

Yes, AI voice calls can transfer to a human when needed.

5) How much does a phone number cost?

A standard number costs three dollars monthly plus metered call and text usage.