Is io.github.trycourier/courier safe to use?

io.github.trycourier/courier has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.github.trycourier/courier?

io.github.trycourier/courier supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can io.github.trycourier/courier do?

io.github.trycourier/courier provides 60 tools: send_message, send_message_template, send_message_to_list, send_message_to_list_template, list_messages and 55 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with io.github.trycourier/courier?

io.github.trycourier/courier is compatible with claude-desktop, cursor, claude-code. It uses http transport.

Is io.github.trycourier/courier actively maintained?

io.github.trycourier/courier is actively maintained — last commit was 10 days ago. It has 1 GitHub stars.

io.github.trycourier/courier

Official

Send notifications, manage templates, and configure integrations with Courier.

1 60 tools GitHub

No known CVEs

No license

Actively maintained

Last commit 10d ago

Works with most clients

Transport: http

60 tools · ~1.6k tok

Grade C · 0.8% of 200K ctx

Edit this pageView history

Communication

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktophttp · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "Courier": {
      "url": "https://mcp.courier.com",
      "headers": {
        "api_key": "YOUR_COURIER_API_KEY"
      }
    }
  }
}

Are you the author?

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[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-trycourier-courier)](https://mcppedia.org/s/io-github-trycourier-courier)

Read me

What io.github.trycourier/courier does

The official Model Context Protocol (MCP) server for the Courier notification API. It gives AI agents full access to the Courier API — send messages, manage profiles, debug deliveries, configure lists, and more — through 60 tools backed by the @trycourier/courier Node SDK.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

59/100across 5 weighted dimensions

How we score →

0255075100

−41

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Inventory

Tools (60)

Click any tool to inspect its schema.

~1.6k tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.trycourier/courier safe to use?: io.github.trycourier/courier has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.trycourier/courier?: io.github.trycourier/courier supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can io.github.trycourier/courier do?: io.github.trycourier/courier provides 60 tools: send_message, send_message_template, send_message_to_list, send_message_to_list_template, list_messages and 55 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with io.github.trycourier/courier?: io.github.trycourier/courier is compatible with claude-desktop, cursor, claude-code. It uses http transport.
Is io.github.trycourier/courier actively maintained?: io.github.trycourier/courier is actively maintained — last commit was 10 days ago. It has 1 GitHub stars.

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MCP Security Weekly

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Edit this pageView history

Communication

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktophttp · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "Courier": {
      "url": "https://mcp.courier.com",
      "headers": {
        "api_key": "YOUR_COURIER_API_KEY"
      }
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-trycourier-courier)](https://mcppedia.org/s/io-github-trycourier-courier)

Read me

What io.github.trycourier/courier does

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

README

Courier MCP Server

Install

Hosted (recommended)

Courier runs a hosted MCP server at https://mcp.courier.com. No local setup required.

Cursor — add to .cursor/mcp.json:

{
  "mcpServers": {
    "Courier": {
      "url": "https://mcp.courier.com",
      "headers": {
        "api_key": "YOUR_COURIER_API_KEY"
      }
    }
  }
}

Claude Code:

claude mcp add Courier --transport http --url https://mcp.courier.com --header "api_key: YOUR_COURIER_API_KEY"

Claude Desktop — add to claude_desktop_config.json:

{
  "mcpServers": {
    "Courier": {
      "url": "https://mcp.courier.com",
      "headers": {
        "api_key": "YOUR_COURIER_API_KEY"
      }
    }
  }
}

Local development

git clone https://github.com/trycourier/courier-mcp.git
cd courier-mcp
sh dev.sh

Then point your IDE at http://localhost:3000 with the same config format above.

Tools

59 default tools organized by API resource, plus 1 diagnostic tool available in local installs.

Default tools

Category	Tools
Send	`send_message`, `send_message_template`, `send_message_to_list`, `send_message_to_list_template`
Messages	`list_messages`, `get_message`, `get_message_content`, `get_message_history`, `cancel_message`
Profiles	`get_user_profile_by_id`, `create_or_merge_user`, `replace_profile`, `delete_profile`, `get_user_list_subscriptions`, `subscribe_user_to_lists`, `delete_user_list_subscriptions`
Lists	`list_lists`, `get_list`, `get_list_subscribers`, `create_list`, `subscribe_user_to_list`, `unsubscribe_user_from_list`
Audiences	`get_audience`, `list_audience_members`, `list_audiences`, `update_audience`, `delete_audience`
Notifications	`list_notifications`, `get_notification_content`, `get_notification_draft_content`
Brands	`create_brand`, `get_brand`, `list_brands`
Auth	`generate_jwt_for_user`
User Tokens	`list_user_push_tokens`, `get_user_push_token`, `create_or_replace_user_push_token`
Docs	`courier_installation_guide`
Automations	`invoke_automation_template`, `invoke_ad_hoc_automation`
Bulk	`create_bulk_job`, `add_bulk_users`, `run_bulk_job`, `get_bulk_job`, `list_bulk_users`
Audit Events	`get_audit_event`, `list_audit_events`
Inbound	`track_inbound_event`
Tenants	`get_tenant`, `create_or_update_tenant`, `list_tenants`, `delete_tenant`
Users	`get_user_preferences`, `update_user_preference_topic`, `list_user_tenants`, `add_user_to_tenant`, `remove_user_from_tenant`
Translations	`get_translation`, `update_translation`

Diagnostic tools (local only)

Category	Tools
Config	`get_environment_config` — check which API key, base URL, and package version the MCP session is using

Safer defaults (optional client policies)

Tools that send live traffic, carry destructiveHint in MCP annotations, or mutate provider integrations are listed in code as RECOMMENDED_CLIENT_DISABLED_TOOLS (source). Export it from @trycourier/courier-mcp if you want to drive codegen or docs. Teams typically paste subsets into Claude Code (permissions.deny / `

... View full README on GitHub

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

59/100across 5 weighted dimensions

How we score →

0255075100

−41

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Inventory

Tools (60)

Click any tool to inspect its schema.

~1.6k tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.trycourier/courier safe to use?: io.github.trycourier/courier has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.trycourier/courier?: io.github.trycourier/courier supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can io.github.trycourier/courier do?: io.github.trycourier/courier provides 60 tools: send_message, send_message_template, send_message_to_list, send_message_to_list_template, list_messages and 55 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with io.github.trycourier/courier?: io.github.trycourier/courier is compatible with claude-desktop, cursor, claude-code. It uses http transport.
Is io.github.trycourier/courier actively maintained?: io.github.trycourier/courier is actively maintained — last commit was 10 days ago. It has 1 GitHub stars.