---
title: How to compare mobile phone plans in Claude · Commerce for Agents
description: Connect the Commerce for Agents MCP server to Claude and ask it to compare US mobile phone plans by price, data and network.
url: https://commerceforagents.com/guides/compare-mobile-plans-in-claude
---

# How to compare mobile phone plans in Claude

Last updated: September 27, 2026

Commerce for Agents is a free MCP server that ranks US postpaid and prepaid mobile phone plans by effective monthly cost per line, so Claude can compare them for you. Connect it once as a custom connector, then ask Claude for a plan that fits your lines, data need and budget.

## Connect Claude or ChatGPT

The MCP endpoint is `https://mcp.commerceforagents.com/mcp`. No API key, no account.

### Claude

Settings → Connectors → Add custom connector. Paste this URL:

```
https://mcp.commerceforagents.com/mcp
```

### ChatGPT

Settings → Apps & Connectors, turn on developer mode, then create a connector with the same URL:

```
https://mcp.commerceforagents.com/mcp
```

## Example prompts

- What's the cheapest postpaid plan for a single line?
- Compare unlimited plans on Verizon's network for 2 lines.
- Find a prepaid plan under $25 a month with hotspot.

## What the tool returns

The `compare-mobile-plans` tool takes the number of lines and, optionally, data need, budget per line, prepaid/postpaid preference, must-haves (hotspot, 5G, premium data, unlimited data) and preferred network. It returns a curated selection of US plans ranked by 12-month average cost per line, each with its network, prepaid/postpaid status and a source or affiliate link. It collects no address or phone number and does not check coverage.

For example, for one postpaid line the tool currently returns Verizon's Simplicity Plan at $30/line (12-month average, unlimited data, requires autopay), followed by Google Fi and T-Mobile plans between $50 and $85/line. Every plan's price was checked on the carrier's own page within the last 45 days.

## FAQ

### Does this cost anything?

No. Commerce for Agents is free to use. See [how we compare](https://commerceforagents.com/comparison-basis) for how the service is funded.

### Does it check coverage at my address?

No. By design it collects no location data. Confirm the underlying network reaches you on the carrier's own coverage checker before switching.

### Is there an affiliate relationship?

Plan links may be affiliate links and Commerce for Agents may earn a commission; ranking is never affected by commissions. Details at [comparison basis](https://commerceforagents.com/comparison-basis).

### Can I use this without Claude Desktop?

Yes. Any MCP client that supports custom connectors and Streamable HTTP can add the same URL, including claude.ai.

---

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