Blog

Insights on AI agents, phone infrastructure, and building with AgentCall.

Developer ResourcesOctober 3, 202610 min read

How to Build an AI Receptionist for a Small Business (No Code) [2026]

Set up an AI receptionist for your small business with no code: pick a number, paste a prompt, add a transfer number, and hear it answer in minutes.

Read more
Developer ResourcesOctober 3, 202610 min read

How to Give Claude Desktop or Cursor a Real Phone Number [2026]

Add the AgentCall MCP server to Claude Desktop, Cursor or Windsurf in five minutes. Claude gets a real US number that texts, answers calls and reads codes.

Read more
Developer ResourcesOctober 3, 202610 min read

Why Twilio Doesn't Work for AI Agents: 10DLC Wait [2026]

An AI agent on Twilio cannot text US numbers until 10DLC brand and campaign registration clears. AgentCall registers for you; verified senders text same day.

Read more
Developer ResourcesAugust 9, 20268 min read

Text Your Own AI Agent on a Real Phone Number [2026]

Point a real US or Canada number at your own agent with relay mode. AgentCall signs each inbound text to your webhook and delivers your agent's reply.

Read more
Developer ResourcesAugust 6, 20269 min read

AgentCall vs AgentPhone: Phone API for AI Agents [2026]

AgentPhone is cheaper per voice minute and has iMessage. AgentCall has 62 MCP tools, cross-call memory, and tool-calling AI. An honest comparison.

Read more
NewsJune 30, 20265 min read

AgentCall on Product Hunt: AI Agent Phone Numbers

AgentCall is live on Product Hunt: real US and Canada phone numbers, SMS, OTP extraction, AI voice, and a 62-tool MCP server for AI agents.

Read more
NewsJune 2, 20265 min read

Premium Voice: ElevenLabs Voices for Your AI Receptionist

AgentCall Premium Voice answers calls with 12 curated ElevenLabs voices in 31 languages plus auto-detect, with caller memory. $0.59/min on Pro.

Read more
EngineeringMay 26, 20267 min read

AI Voice Calls in 31 Languages with AgentCall [2026]

AgentCall speaks 31 languages on inbound and outbound AI calls, with auto-detect or a pinned language. Same per-minute price. Code and a bilingual demo.

Read more
EngineeringMay 14, 20268 min read

AgentCall vs Spellar: Cross-Call Memory [2026]

Spellar, Otter, and Fathom remember across meetings. AgentCall does it for phone calls, with built-in auditable memory or your own agent.

Read more
EngineeringMay 14, 20268 min read

AI Phone Agent That Remembers Every Call [2026]

Give an AI agent a real phone number, load fresh context onto every inbound call, and feed each transcript back so tomorrow's brief remembers today.

Read more
EngineeringMay 4, 20267 min read

AgentCall vs Twilio: No Inbound Webhook Needed [2026]

Twilio needs a webhook URL on every inbound number. With AgentCall you set a system prompt and an AI voice agent answers the call.

Read more
Developer ResourcesApril 24, 20267 min read

Phone Numbers for Vapi, Retell and ElevenLabs Agents [2026]

Vapi, Retell, and ElevenLabs now sell or import voice numbers. See what AgentCall adds next to them: SMS, OTP, memory, and its own AI voice.

Read more
Developer ResourcesApril 12, 202611 min read

5 Best Phone APIs for AI Agents in 2026

We compare AgentCall, Vapi, Bland.ai, Retell, and Twilio on pricing, MCP support, SMS, and how each one handles A2P registration.

Read more
Developer ResourcesMarch 28, 20265 min read

How to Use AgentCall MCP Server with Claude Code in VS Code

Connect AgentCall's 62 MCP tools to Claude Code in VS Code in two minutes. Give Claude phone numbers, SMS, OTP extraction, and voice calls.

Read more
Developer ResourcesMarch 28, 20265 min read

How to Use AgentCall MCP Server with OpenAI Codex in VS Code

Connect AgentCall's 62 phone tools to OpenAI Codex CLI via MCP. Provision numbers, send SMS, extract OTP codes, and make AI voice calls from your terminal.

Read more
NewsMarch 28, 20266 min read

AgentCall MCP Server on Smithery: 62 Phone Tools

AgentCall is on Smithery with 62 MCP tools: phone numbers, SMS, OTP extraction, inbound AI voice, and outbound calls for any MCP agent.

Read more
Developer ResourcesFebruary 25, 20267 min read

How to Give Every AI Agent Its Own Phone Number

Each AI agent needs its own number and inbox. Learn how per-number isolation works in AgentCall and why shared numbers fail at scale.

Read more
Developer ResourcesFebruary 20, 20268 min read

Why AI Agents Need Phone Numbers

From customer outreach to inbound AI voice, phone numbers are the missing primitive for autonomous agents. Here's why.

Read more
EngineeringFebruary 19, 20268 min read

Voice AI Infrastructure: Phone Numbers for AI Voice Agents

Voice AI needs phone numbers as its transport layer. See how AgentCall handles provisioning, recording, status webhooks, and carrier abstraction.

Read more
Developer ResourcesFebruary 17, 20269 min read

Add Phone Numbers to Your SaaS: A Multi-Tenant Guide

How to give each customer of your SaaS their own phone number with AgentCall: one account, one labeled number per tenant, and webhook routing by number.

Read more
Developer ResourcesFebruary 14, 20265 min read

Build a Phone-Enabled MVP in 5 Minutes with AgentCall

Provision a real number, send an SMS, receive webhooks, and place a call with the AgentCall SDK. Includes the 72-hour trial and what needs Pro.

Read more
EngineeringFebruary 12, 20267 min read

AI Agent Call Recording: Compliance and Billing

Record AI agent calls for compliance and QA. Pro-only at $0.01/min, with signed recording URLs delivered by webhook and 12-month retention.

Read more
Developer ResourcesFebruary 5, 202612 min read

5 Best Phone APIs for Developers Compared [2026]

We compare AgentCall, Twilio, Telnyx, Vonage, and Plivo across features, pricing, A2P 10DLC registration, and agent-readiness.

Read more