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AgentPhone

AgentPhone is an API service that gives AI agents US or Canadian phone numbers for voice calls and SMS, with REST, MCP, and SDK access.

Freemium · Web, API

Pricing Plans

Basic Plan$0.00 / monthly

Instant phone number provisioning · Real-time transcription · Unified webhook for messages and calls

Standard Plan$0.01/per message

Includes basic plan features · Additional features and integrations

What is AgentPhone?

AgentPhone is an AI communications API tool that enables developers and businesses to give AI agents US or Canadian phone numbers for voice calls and SMS. It provides real-time transcription and a single webhook for communications. AgentPhone also offers an MCP server and an agent self-sign-up endpoint. Its documentation is at https://docs.agentphone.ai/.

Key Features of AgentPhone

AgentPhone provides a phone-number and communications interface for AI agents, exposed through an API and MCP server.

  • US and Canadian phone numbers for AI agents
  • Voice calls and SMS handled through one API
  • Real-time transcription
  • Single webhook for communications
  • MCP server for agent and tool integrations
  • Agent self-sign-up endpoint
  • REST API
  • Python SDK
  • Node.js SDK

Who Should Use AgentPhone?

AgentPhone is intended for developers and businesses automating communication with AI agents.

  • Customer service agents handling voice calls or SMS
  • Sales teams using agents for lead follow-ups
  • Businesses implementing two-factor authentication workflows
  • Autonomous virtual assistants that need a phone number
  • Businesses seeking AI automation for communication

How to Use AgentPhone

Developers can begin with the AgentPhone API documentation at https://docs.agentphone.ai/ and connect through the REST API, MCP server, Python SDK, or Node.js SDK. The service also lists an agent self-sign-up endpoint.

  1. Review the API documentation at docs.agentphone.ai.
  2. Choose REST API, MCP server, Python SDK, or Node.js SDK access.
  3. Use the agent self-sign-up endpoint or API to provision an agent phone number.
  4. Connect communication handling through the single webhook.
  5. Implement voice-call or SMS workflows and account for applicable quotas and rate limits.

AgentPhone Pricing & Plans

The listed Basic plan costs $0.00. The Standard plan lists messaging at $0.01 per message; at that rate, 100 messages cost approximately $1.00. Endpoint throttles can return HTTP 429 Too Many Requests with a Retry-After header, and channel-specific messaging quotas and caps also apply. The available information does not specify which features or usage limits are included in the Basic plan.

  • Basic Plan: $0.00
  • Standard Plan: $0.01 per message; approximately $1.00 for 100 messages

Pros

  • Offers US and Canadian numbers for AI agents.
  • Supports both voice calls and SMS through one API.
  • Includes real-time transcription and a single communications webhook.
  • Provides an MCP server, agent self-sign-up endpoint, REST API, Python SDK, and Node.js SDK.
  • Lists a $0 Basic plan and a $0.01-per-message Standard rate.

Cons

  • The listed Standard price covers messaging; no separate voice-call price is provided in the supplied pricing details.
  • The Basic plan's included features and usage limits are not specified.
  • Channel-specific messaging quotas and caps apply.
  • Endpoint throttles can return HTTP 429 responses, requiring clients to observe the Retry-After header.

AgentPhone vs Competitors

AgentPhone combines agent phone-number provisioning with voice and SMS access through one API. The alternatives listed emphasize voice orchestration, self-hosted telephony, or broader programmable communications infrastructure.

AgentPhone

Freemium · Web, API

Visit AgentPhone

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