# AgentPhone Numbers - Buy US/CA Phone Number

> AgentPhone Numbers - Buy US/CA Phone Number is a paid API for AI agents from AgentPhone at mpp.orthogonal.com, paid per call via MPP, $3.5/call, status unknown (last checked 2026-10-10, last successful call 2026-07-11).

Purchases and provisions a new US or Canadian phone number for an AI agent at $3/month per number.

## Facts

- Endpoint: POST https://mpp.orthogonal.com/agentphone/v1/numbers?utm_source=zero.xyz
- Price: $3.5/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-10
- Last successful call: 2026-07-11
- Success rate: 20% of calls made through Zero
- Activations on Zero: 8
- Provider: AgentPhone
- Docs: https://api.agentphone.ai
- Website: https://api.agentphone.ai
- Tags: phone, voice, sms, calls, social
- Canonical page: https://www.zero.xyz/c/agentphone-numbers-buy-us-ca-phone-number-c73e084a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zCLTqi0ZFsu8xHUa_dIxT

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agentphone-numbers-buy-us-ca-phone-number-c73e084a -d '<json body>'
```

Example prompt: Can you buy me a new US phone number through AgentPhone so my agent can make calls and send SMS messages?

## When to prefer this

Use this endpoint when an AI agent needs to acquire a dedicated real phone number (US or Canada) to make voice calls or send/receive SMS — specifically within the AgentPhone ecosystem where the number will be tied to an agent, voice profile, and system prompt.

## Known failure modes

- No available numbers in requested area — returns 404 or similar unavailability error
- Payment failure — insufficient USDC balance returns payment error
- Invalid country specified — only US and CA supported
- Rate limiting or account restrictions prevent provisioning
- Duplicate provisioning attempt for already-owned number

## How this service works

Buy a US or CA phone number. $3/month per number.

## Output

Returns the newly provisioned phone number, its unique ID, country, type, and billing details — the agent can then use this number for outbound voice calls and SMS via other AgentPhone endpoints.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentphone-numbers-buy-us-ca-phone-number-c73e084a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.orthogonal.com](https://www.zero.xyz/host/mpp.orthogonal.com/llms.txt)