AgentPhone
Phone numbers for AI agents. A single API provisions US and Canadian numbers with voice and messaging built in, so an agent can call and text people and businesses without the usual telephony compliance work. Teams at Google's Agent Development Kit, Replit and LangChain are already building on it. YC 2026.
Work at AgentPhone? Manage this listing
Our take
Phone numbers for AI agents. One API provisions US and Canadian numbers with voice and SMS built in, so an agent can reach people and businesses by call or text without the usual telephony compliance work. Early adopters include teams at Google's Agent Development Kit, Replit and LangChain. YC 2026; more countries planned.
Best for
Developers giving AI agents a real phone presence for calls and texts without wrangling telephony plumbing.
Pros
- One API for agent voice and SMS
- Instant US/Canada number provisioning
- Compliance handled for you
- Used by Google ADK, Replit, LangChain
Cons
- US/Canada only at launch
- Infrastructure, needs a built agent
- Usage-based costs scale with volume
How it compares
Where Twilio is general-purpose telephony, AgentPhone is purpose-built for agents — provisioning and compliance shaped around how agents place and take calls.
Full review
AgentPhone gives every AI agent its own phone number so it can reach people and businesses through calls and messages. Developers get a single API to provision numbers with voice and messaging built in, and the service handles the telephony compliance work that usually slows this down.
It provisions US and Canadian numbers instantly through the API, with more countries planned, and is already used by teams at Google's Agent Development Kit, Replit, Y Combinator, Sim AI, LangChain and Alchemy. The founders previously built agent infrastructure on WhatsApp at Meta; AgentPhone is part of Y Combinator's 2026 batch.
Cloudkart Trust Graph
3.6/5- Actual Utility4/5
Source: Initial LLM-authored rubric (backfill)
- Ease of Use4/5
Source: Initial LLM-authored rubric (backfill)
- Pricing Fairness3/5
Source: Initial LLM-authored rubric (backfill)
- Reliability3/5
Source: Initial LLM-authored rubric (backfill)
- Differentiation4/5
Source: Initial LLM-authored rubric (backfill)
Scored as of . Each score is versioned and auditable; vendors cannot buy it.
How this score is set
- Editorial rubric
- Primary signal — five dimensions, 3.6/5 average.
- Community reviews
- None yet.
- Pricing verified
- Not yet verified
- Independence
- Score set by our editorial team before any affiliate relationship is considered. No vendor can buy it.
Frequently asked questions
- Is AgentPhone free, and how much does it cost?
- AgentPhone is a paid tool.
- Who is AgentPhone best for?
- Developers giving AI agents a real phone presence for calls and texts without wrangling telephony plumbing.
- How is AgentPhone rated on Cloudkart.ai?
- AgentPhone scores 3.6 out of 5 on the Cloudkart.ai rubric, which weighs actual utility, ease of use, pricing fairness, reliability and differentiation. Scores are set editorially and can never be bought.
Community reviews
No community reviews yet. Be the first to share how AgentPhone works for you.
Relevant tools
More tools in Productivity & Automation.
NotebookLM
Google's source-grounded research assistant: upload docs, PDFs and links, then ask questions, generate study guides, and turn sources into audio and video overviews. The free tier is genuinely usable; Plus raises the limits.
OpenRouter
OpenRouter is a unified API and marketplace for large language models. With one account and key you can reach 300+ models from OpenAI, Anthropic, Google, Meta, Mistral, Cohere and many smaller providers, using an OpenAI-compatible interface. It charges passthrough rates (provider cost plus a small markup) and publishes live pricing and usage-based model rankings, so you can compare options and route to the cheapest, fastest or most reliable one. It supports automatic fallback across providers and a free-model tier for experimentation; the main costs to watch are a 5.5% credit-card fee, which hits small top-ups hardest, and a 5% bring-your-own-key fee on requests above one million per month.
Gamma
AI design tool that generates polished presentations, websites, documents, and social graphics from a prompt or outline.
Krisp
On-device AI that cancels background noise on any call and records, transcribes, and summarizes meetings with accent conversion.
Compare AgentPhone head-to-head: vs NotebookLM · vs OpenRouter · vs Gamma · vs Krisp