Courier: MCP server, CLI and agent surfaces

Yes: Courier runs a public MCP server at mcp.courier.com, found by guessing the subdomain, and it listed 173 tools to a client with no credentials on 4 November 2026. Examples: list_messages, get_message, get_message_content. It speaks streamable-http, protocol 2025-11-25. Endpoint found by subdomain guess, verified by connecting.

Fact sheet

Company	Courier (registry title: courier.com)
Domain	courier.com
Category	Developer Tools (Ora leaderboard category)
MCP server	Verified (No authentication)
Ora score	57, grade C; Ora scanned the domain on 22 August 2026 and the cached score was read on 5 November 2026 from its score API (Ora's score page for courier.com, a vendor-published score)
Company found through	Ora's public leaderboard
Last verified	4 November 2026

MCP server

Endpoint	`https://mcp.courier.com/mcp`
How it was found	endpoint found by subdomain guess, verified by connecting
Transport	streamable-http
HTTP status	200
Protocol version	2025-11-25
Server	@trycourier/courier-mcp 1.3.7
Capabilities	tools
Tools	173
Resources	0
Prompts	0
Connected	4 November 2026, 20:02 UTC
Handshake time	1,606 ms over 1 attempt

Tools listed

173 tools; the first 40 names are recorded

list_messages
get_message
get_message_content
get_message_history
list_notifications
get_notification_content
get_notification_draft_content
create_notification
get_notification
replace_notification
put_notification_content
put_notification_element
put_notification_locale
list_notification_versions
list_notification_checks
list_providers
get_provider
list_provider_catalog
get_routing_strategy
list_routing_strategies
list_preference_sections
get_preference_section
list_preference_topics
get_preference_topic
create_journey
get_journey
replace_journey
create_journey_template
put_journey_template_content
put_journey_template_locale
list_journeys
list_journey_templates
get_journey_template
get_journey_template_content
get_notification_metrics
get_tenant
list_tenants
list_tenant_users
get_user_profile_by_id
get_user_list_subscriptions

Connector log

2 connections on 4 November 2026, read-only methods only

19:57:04Z https://mcp.courier.com/mcp sent initialize, notifications/initialized, tools/list result verified (HTTP 200) 1438 ms
20:02:35Z https://mcp.courier.com/mcp sent initialize, notifications/initialized, tools/list result verified (HTTP 200) 1606 ms

Authentication

Auth type	No authentication

The sign-in route, step by step

Send the handshake to https://mcp.courier.com/mcp over streamable-http. Servers on the 2026-07-28 revision answer server/discover; older servers answer initialize.
Send tools/list, then resources/list and prompts/list if the capabilities name them.
Send no token. The connector sent none and the server answered, so any MCP client can read this list.
Calling a tool is a separate step this directory never takes.

See OAuth for MCP: client ID metadata documents and dynamic registration for how each route works.

CLI

No CLI is on record for Courier. The directory checks a package only where a source names one, so this is a floor: a company can ship a command line that no source read for this edition mentions. See shipping a CLI agents can use.

Other agent surfaces

Agent surfaces other than MCP and CLI
Surface	Result
OpenAPI file	No OpenAPI file at the root paths checked.
WebMCP in the initial HTML	Not detected on the home page by the shared crawl.
MCP discovery file	Not found (the crawl got a non-200 answer).
A2A agent card	Not found (the crawl got a non-200 answer).
A2A agent card (older path)	Not found (the crawl got a non-200 answer).
agents.json	Not found (the crawl got a non-200 answer).
OAuth authorization server metadata	Not found (the crawl got a non-200 answer).
NLWeb endpoint	Not checked in this edition.

Registry listings

Registry listings
Registry	Listed
Official MCP Registry	No
GitHub MCP Registry	No
awesome-remote-mcp-servers	No
Smithery	Not checked: Smithery's listing pages and search API were unavailable on 4 November 2026.
Glama	Not checked: Glama's API needs a key and attribution terms.