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Saperly

Saperly is a phone-carrier API for AI agents that provides phone numbers, voice calls, and SMS, with an MCP server and connectors for coding agents.

Freemium · Web, API

Pricing Plans

BasicFree

$5 signup credit · No carrier account required · Live in minutes

Voice$0.13/min webhook, $0.26/min hosted

Flat rate to any destination · Compliance included

SMS$0.02/segment

Inbound SMS included · Pricing varies by country

Numbers$2/month

First number covered by signup credit

What is Saperly?

Saperly is a phone-carrier API tool for AI agents that enables developers and organizations to provision phone numbers and handle voice calls and SMS through one API. It also provides an MCP server and connectors for coding agents to use telephony capabilities. Saperly supports text and audio, open-standard function calling, OpenAI GPT-4o, and bring-your-own-LLM integrations.

Key Features of Saperly

Saperly combines phone-number provisioning, voice, and SMS in an API intended for AI-agent integrations. Its MCP server and coding-agent connectors provide an agent-facing way to access telephony functions.

  • Provision and release live phone numbers through the API.
  • Handle voice calls and SMS through one API.
  • Use an MCP server and connectors for coding agents.
  • Route communications across multiple phone numbers.
  • Handle conversation media in-network.
  • Use built-in compliance features and audit trails.
  • Call open-standard functions with OpenAI GPT-4o or a bring-your-own LLM setup.
  • Work with text and audio modalities.
  • Integrate with Cofounder, Polsia, OpenClaw, and Claude.

Who Should Use Saperly?

Saperly is intended for developers and organizations adding telephone communication to AI agents, particularly when phone-number provisioning, voice, and SMS need to be accessed through an API.

  • AI-agent developers building voice-call integrations.
  • Teams connecting agents to SMS messaging and phone numbers.
  • Organizations that need to provision and release numbers programmatically.
  • Developers using MCP-compatible coding-agent workflows.
  • Teams seeking API-based messaging with compliance features and audit trails.

How to Use Saperly

Start with Saperly’s web service and API documentation at https://saperly.com/docs. The available pricing information lists a free Basic tier and a $5 signup credit, with metered charges for voice, SMS, and numbers.

  1. Create an account and review the Basic tier and signup credit.
  2. Consult the API documentation and API reference.
  3. Provision a phone number through the API.
  4. Configure voice or SMS handling and, where needed, shared routing across numbers.
  5. Connect an agent using the MCP server or a listed coding-agent integration.
  6. Review usage charges, audit trails, and the published data-retention periods.

Saperly Pricing & Plans

Saperly uses a free entry tier with usage-based charges for telephony. The listed Basic tier is free, and signup includes $5 in credit. Voice is charged by the minute, SMS by segment, and phone numbers monthly; SMS pricing is specified as $0.02 per segment for US/Canada.

  • Basic: Free.
  • Signup credit: $5.
  • Voice (webhook): $0.13 per minute.
  • Voice (hosted): $0.26 per minute.
  • SMS: $0.02 per segment for US/Canada.
  • Numbers: $2 per month.

Pros

  • Combines phone numbers, voice calls, and SMS through one API.
  • Supports programmatic provisioning and release of live phone numbers.
  • Includes an MCP server and connectors for coding-agent workflows.
  • Lists a free Basic tier and $5 signup credit.
  • Publishes specific retention periods and API rate-limit response behavior.

Cons

  • Numeric API rate-limit thresholds are not publicly listed.
  • Voice and messaging usage incur per-minute or per-segment charges in addition to the free tier.
  • Call recordings are retained for 30 days and transcripts for 90 days, rather than indefinitely.
  • SMS body retention is conditional on opting in and is limited to 30 days.
  • The listed SMS rate is specifically stated for US/Canada; other regional rates are not provided in the supplied pricing details.

Saperly vs Competitors

Saperly is positioned as an agent-oriented phone carrier combining numbers, voice, and SMS through one API. The listed alternatives emphasize voice pipelines, telephony infrastructure, or voice-agent workflows; their feature sets and setup requirements differ.

Saperly

Freemium · Web, API

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