# asms (remote · asms.ai)

Phone numbers for AI agents: SMS verification codes and rented numbers that receive SMS.

- Trust score: 82/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `asms.ai`: 82/100 (this document), [markdown](https://verifymcp.io/servers/ai-asms-asms/asms.md), [page](https://verifymcp.io/servers/ai-asms-asms/asms)

## Channel facts

- Endpoint: `https://asms.ai/mcp`
- Transports: `streamable-http`
- Auth: `required`
- Version: `1.1.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 94/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
  - The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 74/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1632 tokens (~136/item across 12 items; 12 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 12 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 13 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the asms MCP server?

asms is a hosted endpoint at https://asms.ai/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http ai-asms-asms 'https://asms.ai/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "ai-asms-asms": {
      "url": "https://asms.ai/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ai-asms-asms": {
      "type": "http",
      "url": "https://asms.ai/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.ai-asms-asms]
url = "https://asms.ai/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ai-asms-asms": {
      "type": "remote",
      "url": "https://asms.ai/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ai-asms-asms --url 'https://asms.ai/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ai-asms-asms:
    url: "https://asms.ai/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "ai-asms-asms": {
      "Transport": "http",
      "Url": "https://asms.ai/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add ai-asms-asms -t streamable-http -u 'https://asms.ai/mcp'
```

### Other

```json
{
  "mcpServers": {
    "ai-asms-asms": {
      "type": "http",
      "url": "https://asms.ai/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-04 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 79, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-29 (score 79)

First indexed and scored.

## MCP tools (12)

### `get_balance` (~18 tokens)

Wallet balance

Get the current wallet balance for the authenticated account.

### `get_pricing` (~137 tokens)

Verification code prices

Get the retail price per OTP activation for a service in a country. Omit `service` to list prices for every available service.

Input parameters:

- `country` (string, required): Number pool to order from: "us1" = Non-VoIP AT&T (real carrier line, for strict services like WhatsApp/Telegram/Google), "us" = VoIP High Quality (lowest price, works for most signups), "uk" = United…
- `service` (string): Service slug to receive the OTP for (e.g. "google", "telegram", "whatsapp").

### `get_inventory` (~136 tokens)

Verification number stock

Get how many numbers are in stock for a service in a country. Omit `service` to list stock for every available service.

Input parameters:

- `country` (string, required): Number pool to order from: "us1" = Non-VoIP AT&T (real carrier line, for strict services like WhatsApp/Telegram/Google), "us" = VoIP High Quality (lowest price, works for most signups), "uk" = United…
- `service` (string): Service slug to receive the OTP for (e.g. "google", "telegram", "whatsapp").

### `create_otp_order` (~240 tokens)

Order a verification number

Buy a number to receive an OTP: allocates a number, debits the wallet, and returns an orderId + phoneNumber. Then poll with poll_sms. If no code arrives, do NOT cancel to retry: simply call create_otp_order again for a fresh number and keep polling that one. Unfilled orders auto-refund within 10 minutes, so you only pay for codes that actually land and there is no penalty for ordering repeatedly. When a service keeps rejecting codes, order on the "us1" (Non-VoIP AT&T) pool, which has the highest delivery rate. WARNING: this spends real wallet balance.

Input parameters:

- `country` (string, required): Number pool to order from: "us1" = Non-VoIP AT&T (real carrier line, for strict services like WhatsApp/Telegram/Google), "us" = VoIP High Quality (lowest price, works for most signups), "uk" = United…
- `service` (string, required): Service slug to receive the OTP for (e.g. "google", "telegram", "whatsapp").

### `poll_sms` (~128 tokens)

Check for the verification code

Check for the SMS / OTP code on an order. Returns the code once it has arrived, otherwise an empty result: poll again after a few seconds. If nothing lands after a minute or two, the fastest path is to order a fresh number with create_otp_order (prefer the "us1" Non-VoIP pool) and leave the original: it auto-refunds within 10 minutes. Never cancel just to retry, and there is no charge for ordering again, you only pay for codes that arrive.

Input parameters:

- `orderId` (string, required): The orderId from create_otp_order.

### `list_active_orders` (~45 tokens)

List verification orders

List recent OTP orders for the account (awaiting a code or already received).

Input parameters:

- `limit` (number): Max orders to return (default 50, max 1000).

### `cancel_order` (~95 tokens)

Cancel a verification order

Rarely needed. To retry a verification do NOT cancel: just call create_otp_order again, because every unfilled order auto-refunds within 10 minutes on its own, and cancel is blocked for the first 10 minutes anyway. Only use this to release an order you are certain you no longer need once its 10-minute hold has passed.

Input parameters:

- `orderId` (string, required): The orderId from create_otp_order.

### `get_rental_offers` (~233 tokens)

Number rental prices

List the rental periods and prices for a country (1 day to 12 months). A rented number is yours for the whole period and receives every SMS sent to it, unlike an OTP order, which is for one code. Omit `country` to list the countries numbers can be rented in.

Input parameters:

- `country` (string): Country to rent a number in: "us" (United States), "uk" (United Kingdom), "ca" (Canada), "au" (Australia), "es" (Spain), "se" (Sweden), "de" (Germany), "nl" (Netherlands), "it" (Italy), "pl" (Poland)…

### `rent_number` (~312 tokens)

Rent a phone number

Rent a phone number in a country for a period (get the periods and prices from get_rental_offers first). Debits the wallet and returns the number and when the rental ends. Read its SMS with read_rental_sms. WARNING: this spends real wallet balance; confirm the country, period and price with the user first.

Input parameters:

- `country` (string, required): Country to rent a number in: "us" (United States), "uk" (United Kingdom), "ca" (Canada), "au" (Australia), "es" (Spain), "se" (Sweden), "de" (Germany), "nl" (Netherlands), "it" (Italy), "pl" (Poland)…
- `period` (string, required): Rental period: "oneDay" (1 day), "oneWeek" (1 week), "oneMonth" (1 month), "threeMonths" (3 months), "sixMonths" (6 months), "twelveMonths" (12 months). Not every period is on sale in every country:…

### `list_rentals` (~56 tokens)

List rented numbers

List the account's rented numbers with their country, period and end date. Ended rentals are left out unless `includeEnded` is true.

Input parameters:

- `includeEnded` (boolean): Also list rentals that have ended (default false).

### `read_rental_sms` (~65 tokens)

Read a rented number's SMS

Read the SMS a rented number has received during this rental, newest first. Poll again every few seconds while waiting for a message.

Input parameters:

- `number` (string, required): The rented number, as rent_number or list_rentals gave it ("+", spaces and dashes are ignored).

### `cancel_rental` (~78 tokens)

Cancel a rental for a refund

Cancel a rented number and refund it. Only possible between 5 and 120 minutes after renting, and only if the number has received no SMS; after that the rental runs to its end date.

Input parameters:

- `number` (string, required): The rented number, as rent_number or list_rentals gave it ("+", spaces and dashes are ignored).

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/ai-asms-asms/asms#diagnostics

## Score history

- 2026-11-05: 82
- 2026-11-04: 82
- 2026-11-03: 81
- 2026-11-02: 81
- 2026-11-01: 80
- 2026-10-31: 80
- 2026-10-30: 79
- 2026-10-29: 79

## Common questions

### What is the asms MCP server?

asms is an MCP server listed in the public MCP registry as ai.asms/asms. Phone numbers for AI agents: SMS verification codes and rented numbers that receive SMS. This page covers its hosted endpoint (https://asms.ai/mcp).

### Is the asms MCP server safe to use?

asms scores 82 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the asms MCP server expose?

asms exposes 12 tools: get_balance, get_pricing, get_inventory, create_otp_order, poll_sms, and 7 more. Their descriptions and schemas cost roughly 1,543 tokens of context every time the server is loaded.

### Does the asms MCP server require authentication?

Yes. asms asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.

### Is the asms MCP server still maintained?

asms is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://asms.ai/mcp
- Repository: https://github.com/asms-ai/asms-mcp
- Website: https://asms.ai/agents
- Changelog RSS feed: https://verifymcp.io/servers/ai-asms-asms/asms.xml
- Changelog JSON feed: https://verifymcp.io/servers/ai-asms-asms/asms.json
- HTML version of this page: https://verifymcp.io/servers/ai-asms-asms/asms