# Call Desk (remote · mcp.modernmustardseed.com)

US and Canada calling rules: number checks, calling hours, recording consent, AI voice disclosure.

- Trust score: 76/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-22

## Components

- remote · `mcp.modernmustardseed.com`: 76/100 (this document), [markdown](https://verifymcp.io/servers/com-modernmustardseed-call-desk/call-desk.md), [page](https://verifymcp.io/servers/com-modernmustardseed-call-desk/call-desk)

## Channel facts

- Endpoint: `https://mcp.modernmustardseed.com/call-desk`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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 2026-10-22.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - 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.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 64/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1365 tokens (~273/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 33/100
  - Stability observed for 10 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 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the Call Desk MCP server?

Call Desk is a hosted endpoint at https://mcp.modernmustardseed.com/call-desk, 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 com-modernmustardseed-call-desk 'https://mcp.modernmustardseed.com/call-desk'
```

### Cursor

```json
{
  "mcpServers": {
    "com-modernmustardseed-call-desk": {
      "url": "https://mcp.modernmustardseed.com/call-desk"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-modernmustardseed-call-desk": {
      "type": "http",
      "url": "https://mcp.modernmustardseed.com/call-desk"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-modernmustardseed-call-desk]
url = "https://mcp.modernmustardseed.com/call-desk"
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add com-modernmustardseed-call-desk --url 'https://mcp.modernmustardseed.com/call-desk' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-modernmustardseed-call-desk:
    url: "https://mcp.modernmustardseed.com/call-desk"
```

### Netclaw

```json
{
  "McpServers": {
    "com-modernmustardseed-call-desk": {
      "Transport": "http",
      "Url": "https://mcp.modernmustardseed.com/call-desk"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-modernmustardseed-call-desk -t streamable-http -u 'https://mcp.modernmustardseed.com/call-desk'
```

### Other

```json
{
  "mcpServers": {
    "com-modernmustardseed-call-desk": {
      "type": "http",
      "url": "https://mcp.modernmustardseed.com/call-desk"
    }
  }
}
```

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.

### 2026-10-21 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-19 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-17 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-14 (score 73, +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.

### 2026-10-13 (score 72, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-12 (score 72)

First indexed and scored.

## MCP tools (5)

### `check_phone_number` (~245 tokens)

Check a phone number

Check a US, Canadian or other North American (+1) phone number before calling or texting it. Returns whether it can be a working number (N11 codes and unassigned area codes fail; 555-0100 to 0199, reserved for fiction, is flagged as fictional_range and still resolves), the E.164 form, where the area code rings (US state or territory, Canadian province, or another country on the +1 plan), whether the area code is in service, its overlays, every time zone the exchange covers with the current local time there, and a toll-fraud risk grade (block, high, medium, low) with reasons: Caribbean and Bermuda +1 codes that bill as international calls, 900 premium numbers, Pacific territory codes, non-geographic codes and the 976 exchange. Area code data from NANPA, time zones from libphonenumber; no network access. Informational, not legal advice.

Input parameters:

- `phone_number` (string, required): The number in any common format: (406) 555-0123, +1 406 555 0123, 1-800-FLOWERS, or with an extension.

### `can_i_call_now` (~416 tokens)

Can I call now

Decide whether a call to a phone number, or to someone in a given state or province, is allowed right now or at a given time under calling-hours law: the FCC TCPA rule and FTC Telemarketing Sales Rule (8 a.m. to 9 p.m. called party's local time), every stricter state rule we verified (for example Florida, Oklahoma, Maryland, Washington and Wyoming stop at 8 p.m.; Texas Sundays start at noon; Pennsylvania bans Sundays from 2026-10-18; Kentucky starts at 10 a.m.; Maine allows automated solicitation weekdays 9 to 5 only), and in Canada the CRTC rules and British Columbia's holiday ban. Checks every time zone the number could be in, state holiday bans and future effective dates. Returns allowed or not, the reason, the window today, the next allowed time, and every rule applied with its citation, verbatim quote, source URL and as-of date. Choose call_type: sales_automated covers AI voice agents, prerecorded and autodialed sales calls. Informational, not legal advice.

Input parameters:

- `at` (string): Check a time other than now: ISO 8601 with an offset, for example 2026-10-19T09:30:00-05:00.
- `call_type` (string): sales_automated (default): a sales call by AI voice, prerecorded message or autodialer. sales_live: a sales call by a person. automated_non_sales: an automated or AI-voice call that sells nothing (re…
- `phone_number` (string): The number to be called. Its area code and exchange give the state and time zones.
- `state` (string): Instead of a number: the called person's US state, DC, US territory or Canadian province, as a code (TX) or name (Texas). States with several time zones are checked in all of them.

### `recording_consent_rules` (~200 tokens)

Recording consent rules

Look up whether a phone call may be recorded with one party's consent or needs every party's consent, for one or more US states, DC or Canadian provinces, by state or by the phone numbers on the call. Returns each jurisdiction's rule (one-party, all-party or mixed, such as Oregon, Connecticut, Nevada or Michigan, with the case law that decides it), the statute, a verbatim quote, the source URL and as-of date, the federal rule (18 U.S.C. 2511(2)(d)), and a bottom line for calls that cross state lines. With no input, returns the lists of all-party, mixed and one-party states. Informational, not legal advice.

Input parameters:

- `phone_numbers` (array): Phone numbers of the people on the call; each maps to its area code's state.
- `states` (array): States or provinces of the people on the call, as codes or names.

### `ai_voice_disclosure_rules` (~203 tokens)

AI voice disclosure rules

List the laws that require a caller or conversational agent to disclose that it is AI, a bot, or an artificial or prerecorded voice, for a US state, Canadian province or phone number, or for every jurisdiction. Covers the FCC ruling that AI-generated voices are artificial voices under the TCPA (so AI voice calls need prior express consent), the federal rule that prerecorded messages identify the caller at the start, state AI and chatbot disclosure laws, and state rules on identifying automated messages. Each rule gives what must be disclosed, when, who it applies to, effective and sunset dates, whether it is in force today, the citation, a verbatim quote, the source URL and as-of date. Informational, not legal advice.

Input parameters:

- `phone_number` (string): Instead of a state: a phone number; its area code gives the state.
- `state` (string): A US state, DC, territory or Canadian province, as a code or name.

### `list_state_calling_rules` (~161 tokens)

List state calling rules

Show every calling rule Call Desk holds for one US state, DC, territory or Canadian province: its time zones and area codes, federal and state calling-hours rules with windows, holidays and per-day call caps, recording consent, AI disclosure and automated message rules, each with citation, quote, source URL and as-of date, plus any rule we looked for and could not verify. With no state, returns a table of every jurisdiction with hours stricter than federal, the states with no stricter rule, and the all-party recording states. Informational, not legal advice.

Input parameters:

- `state` (string): A US state, DC, territory or Canadian province, as a code (OK) or name (Oklahoma). Leave out for the overview.

## Diagnostics

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

## Score history

- 2026-10-22: 76
- 2026-10-21: 76
- 2026-10-20: 75
- 2026-10-19: 75
- 2026-10-18: 74
- 2026-10-17: 74
- 2026-10-16: 73
- 2026-10-15: 73
- 2026-10-14: 73
- 2026-10-13: 72
- 2026-10-12: 72

## Common questions

### What is the Call Desk MCP server?

Call Desk is an MCP server listed in the public MCP registry as com.modernmustardseed/call-desk. US and Canada calling rules: number checks, calling hours, recording consent, AI voice disclosure. This page covers its hosted endpoint (https://mcp.modernmustardseed.com/call-desk).

### Is the Call Desk MCP server safe to use?

Call Desk scores 76 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 Call Desk MCP server expose?

Call Desk exposes 5 tools: check_phone_number, can_i_call_now, recording_consent_rules, ai_voice_disclosure_rules, list_state_calling_rules. Their descriptions and schemas cost roughly 1,225 tokens of context every time the server is loaded.

### Does the Call Desk MCP server require authentication?

No. We connected to Call Desk without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Call Desk MCP server still maintained?

Call Desk is still listed as active in the MCP registry. We last reached this channel on 22 October 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://mcp.modernmustardseed.com/call-desk
- Website: https://mcp.modernmustardseed.com/docs/call-desk
- Changelog RSS feed: https://verifymcp.io/servers/com-modernmustardseed-call-desk/call-desk.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-modernmustardseed-call-desk/call-desk.json
- HTML version of this page: https://verifymcp.io/servers/com-modernmustardseed-call-desk/call-desk