# Comet Messenger Service (remote · agents.cometmessenger.delivery)

Chicago same-day courier: live delivery quotes; account holders book and track runs.

- Trust score: 67/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-18

## Components

- remote · `agents.cometmessenger.delivery`: 67/100 (this document), [markdown](https://verifymcp.io/servers/delivery-cometmessenger-courier/agents.md), [page](https://verifymcp.io/servers/delivery-cometmessenger-courier/agents)

## Channel facts

- Endpoint: `https://agents.cometmessenger.delivery/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `2.0.0`

## 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 2026-10-18.

- **Endpoint Security**: 69/100
  - 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 enforcement could not be verified: the plaintext port answered with HTTP 404, which proves neither a plaintext path nor enforcement.
  - 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**: 56/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1199 tokens (~299/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 20/100
  - Stability observed for 6 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 97/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 89% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the Comet Messenger Service MCP server?

Comet Messenger Service is a hosted endpoint at https://agents.cometmessenger.delivery/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 delivery-cometmessenger-courier 'https://agents.cometmessenger.delivery/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "delivery-cometmessenger-courier": {
      "url": "https://agents.cometmessenger.delivery/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "delivery-cometmessenger-courier": {
      "type": "http",
      "url": "https://agents.cometmessenger.delivery/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.delivery-cometmessenger-courier]
url = "https://agents.cometmessenger.delivery/mcp"
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add delivery-cometmessenger-courier --url 'https://agents.cometmessenger.delivery/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  delivery-cometmessenger-courier:
    url: "https://agents.cometmessenger.delivery/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "delivery-cometmessenger-courier": {
      "Transport": "http",
      "Url": "https://agents.cometmessenger.delivery/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add delivery-cometmessenger-courier -t streamable-http -u 'https://agents.cometmessenger.delivery/mcp'
```

### Other

```json
{
  "mcpServers": {
    "delivery-cometmessenger-courier": {
      "type": "http",
      "url": "https://agents.cometmessenger.delivery/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.

### 2026-10-18 (score 67, +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.

### 2026-10-16 (score 66, +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.

### 2026-10-14 (score 65, +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 64, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-12 (score 64)

First indexed and scored.

## MCP tools (4)

### `get_quote` (~333 tokens)

Get a Comet delivery price

Price a same-day courier delivery in the Chicago area with Comet Messenger Service (since 1976). Returns live prices for Streak (fastest), Priority and Standard service, and the vehicle used. Quotes only - nothing is booked. Account holders' agents can book with book_delivery; everyone else books by calling (312) 786-2288 or at https://cometmessenger.delivery.

Input parameters:

- `dropoff_city` (string): City (default Chicago)
- `dropoff_state` (string): Two-letter state (default IL)
- `dropoff_street` (string, required): Drop-off street address, e.g. '300 N LaSalle St'
- `dropoff_zip` (string, required): ZIP code
- `pickup_city` (string): City (default Chicago)
- `pickup_state` (string): Two-letter state (default IL)
- `pickup_street` (string, required): Pickup street address, e.g. '300 N LaSalle St'
- `pickup_zip` (string, required): ZIP code
- `pieces` (integer): Number of pieces (default 1)
- `round_trip` (boolean): True when the courier returns to the pickup (default false)
- `vehicle` (string): Vehicle wanted; 'auto' (default) picks from the weight. A heavier load is moved up to the vehicle it needs.
- `weight_lb` (number): Total weight in pounds. Picks the vehicle when none is given.
- `when` (string): Pickup time, Chicago time, e.g. '2026-10-05T10:00'. Optional; used to flag after-hours and weekend pricing.

Output parameters:

- `book_by_phone` (string)
- `book_online` (string)
- `company` (string)
- `currency` (string)
- `error` (string): Present when ok=false
- `is_booking` (boolean)
- `message` (string)
- `ok` (boolean)
- `pieces` (integer)
- `requested_vehicle` (string)
- `round_trip` (boolean)
- `services` (array)
- `timing_note` (string)
- `upgraded` (boolean)
- `vehicle` (string)
- `vehicle_label` (string)
- `vehicle_note` (string)
- `weight_lb` (number)

### `book_delivery` (~633 tokens)

Book a Comet delivery (account holders)

Book a same-day courier delivery on a Comet account. Call first without confirm to get a preview (price, vehicle, pickup time); show it to your user; then call again with the same details and confirm=true to place the order. Returns the Comet order number. Needs the client's Comet account key (Authorization: Bearer cmt_...). Account holders get one from Comet at (312) 786-2288.

Input parameters:

- `confirm` (boolean): false/omitted = preview only (price and details, nothing booked). true = place the order. Always show the preview to your user before confirming.
- `dropoff_city` (string): City (default Chicago)
- `dropoff_contact` (string)
- `dropoff_name` (string, required): Company or person receiving the delivery
- `dropoff_notes` (string): Instructions for the courier at drop-off
- `dropoff_phone` (string)
- `dropoff_state` (string): Two-letter state (default IL)
- `dropoff_street` (string, required): Drop-off street address, e.g. '300 N LaSalle St'
- `dropoff_suite` (string): Suite / floor at drop-off
- `dropoff_zip` (string, required): ZIP code
- `notify_email` (string): Email for the order confirmation and delivery notice
- `ordered_by` (string): Name of the person the agent is acting for
- `package_type` (string): Default envelope
- `pickup_city` (string): City (default Chicago)
- `pickup_contact` (string)
- `pickup_name` (string): Company or person at pickup. Omit pickup fields entirely to pick up at the account's own office.
- `pickup_notes` (string): Instructions for the courier at pickup
- `pickup_phone` (string)
- `pickup_state` (string): Two-letter state (default IL)
- `pickup_street` (string): Pickup street address, e.g. '300 N LaSalle St'
- `pickup_suite` (string): Suite / floor at pickup
- `pickup_zip` (string): ZIP code
- `pieces` (integer): Number of pieces (default 1)
- `reference` (string): Client reference / matter number for the invoice
- `reference2` (string)
- `round_trip` (boolean): True when the courier returns to the pickup (default false)
- `service` (string, required): Streak (fastest, about 1-2 h), Priority (about 2-3 h) or Standard (about 4-6 h). Only the services on the account are accepted.
- `vehicle` (string): Vehicle wanted; 'auto' (default) picks from the weight. A heavier load is moved up to the vehicle it needs.
- `weight_lb` (number): Total weight in pounds. Picks the vehicle when none is given.
- `when` (string): 'now' (default) or a pickup time in Chicago time today or tomorrow, e.g. '2026-10-13T09:00'. Further ahead: call the office.

Output parameters:

- `account` (string)
- `dropoff` (string)
- `error` (string)
- `estimated_price` (string): List-rate estimate; the account's own rate applies on the invoice
- `message` (string)
- `ok` (boolean)
- `order_number` (string): Comet / Xcelerator tracking number once entered, e.g. '516.101226'
- `pickup` (string)
- `pickup_time` (string)
- `placed` (boolean): True only when a real order was created
- `preview` (boolean)
- `request_id` (string)
- `service` (string)
- `status` (string)
- `vehicle` (string)

### `order_status` (~95 tokens)

Track a Comet order

Where an order on the account is: booked, picked up, delivered (with who signed and when) or cancelled. Needs the client's Comet account key (Authorization: Bearer cmt_...). Account holders get one from Comet at (312) 786-2288.

Input parameters:

- `order_number` (string, required): Comet tracking number, e.g. '516.101226', or the request_id returned by book_delivery

Output parameters:

- `error` (string)
- `message` (string)
- `ok` (boolean)
- `orders` (array)

### `recent_orders` (~76 tokens)

List recent Comet orders

The account's latest orders with their status. Needs the client's Comet account key (Authorization: Bearer cmt_...). Account holders get one from Comet at (312) 786-2288.

Input parameters:

- `active_only` (boolean): Only orders not yet delivered
- `limit` (integer): How many (default 10)

Output parameters:

- `error` (string)
- `message` (string)
- `ok` (boolean)
- `orders` (array)

## Diagnostics

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

## Score history

- 2026-10-18: 67
- 2026-10-17: 66
- 2026-10-16: 66
- 2026-10-15: 65
- 2026-10-14: 65
- 2026-10-13: 64
- 2026-10-12: 64

## Common questions

### What is the Comet Messenger Service MCP server?

Comet Messenger Service is an MCP server listed in the public MCP registry as delivery.cometmessenger/courier. Chicago same-day courier: live delivery quotes; account holders book and track runs. This page covers its hosted endpoint (https://agents.cometmessenger.delivery/mcp).

### Is the Comet Messenger Service MCP server safe to use?

Comet Messenger Service scores 67 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 Comet Messenger Service MCP server expose?

Comet Messenger Service exposes 4 tools: get_quote, book_delivery, order_status, recent_orders. Their descriptions and schemas cost roughly 1,137 tokens of context every time the server is loaded.

### Does the Comet Messenger Service MCP server require authentication?

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

### Is the Comet Messenger Service MCP server still maintained?

Comet Messenger Service is still listed as active in the MCP registry. We last reached this channel on 18 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://agents.cometmessenger.delivery/mcp
- Website: https://cometmessenger.delivery/ai-assistants.html
- Changelog RSS feed: https://verifymcp.io/servers/delivery-cometmessenger-courier/agents.xml
- Changelog JSON feed: https://verifymcp.io/servers/delivery-cometmessenger-courier/agents.json
- HTML version of this page: https://verifymcp.io/servers/delivery-cometmessenger-courier/agents