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courier-mcp
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 124 tools backed by the @trycourier/courier Node SDK.
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"
}
}
}
}
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.
109 default tools organized by API resource, plus 1 diagnostic tool available in local installs.
| 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, patch_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, delete_list, restore_list, subscribe_user_to_list, unsubscribe_user_from_list, bulk_subscribe_to_list, add_subscribers_to_list |
| Audiences | get_audience, list_audience_members, list_audiences, update_audience, delete_audience |
| Notifications | list_notifications, get_notification, get_notification_content, get_notification_draft_content, create_notification, replace_notification, archive_notification, publish_notification, list_notification_versions, list_notification_checks, update_notification_checks, put_notification_content, put_notification_element, put_notification_locale, cancel_notification_submission |
| Brands | create_brand, get_brand, list_brands, update_brand, delete_brand |
| Auth | generate_jwt_for_user |
| Device Tokens | list_user_push_tokens, get_user_push_token, create_or_replace_user_push_token, bulk_add_user_tokens, patch_user_token, delete_user_token |
| Docs | courier_installation_guide |
| Automations | invoke_automation_template, invoke_ad_hoc_automation, list_automations, cancel_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, list_tenant_users, update_tenant_preference, delete_tenant_preference, list_tenant_templates, get_tenant_template, replace_tenant_template, publish_tenant_template, get_tenant_template_version, delete_tenant_template |
| Users | get_user_preferences, get_user_preference_topic, update_user_preference_topic, list_user_tenants, add_user_to_tenant, remove_user_from_tenant, bulk_add_user_tenants, remove_all_user_tenants |
| Routing Strategies | create_routing_strategy, get_routing_strategy, replace_routing_strategy, archive_routing_strategy, list_routing_strategies, list_routing_strategy_notifications |
| Journeys | list_journeys, invoke_journey, create_journey, get_journey, replace_journey, publish_journey, archive_journey, list_journey_versions, list_journey_templates, create_journey_template, get_journey_template, replace_journey_template, archive_journey_template, publish_journey_template, list_journey_template_versions |
| Requests | archive_request |
| Providers | list_providers, get_provider, list_provider_catalog, create_provider, update_provider, delete_provider |
| Translations | get_translation, update_translation |
| Category | Tools |
|---|---|
| Config | get_environment_config — check which API key, base URL, and package version the MCP session is using |
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 / mcp__<serverName>__<toolName>) or Codex ([mcp_servers.<name>.disabled_tools] in config.toml). This does not change hosted MCP behavior until each client applies its own policy.
courier-mcp/
├── mcp/ # MCP package (@trycourier/courier-mcp on npm)
│ └── src/
│ ├── index.ts # CourierMcp server class
│ ├── policy/ # Optional client policy helpers (e.g. recommended disable list)
│ ├── tools/ # Tool definitions (one file per API resource)
│ └── utils/ # Config, error handling, registry
├── server/ # Express server (hosts the MCP package via HTTP)
│ └── src/index.ts # Stateless HTTP handler
└── dev.sh # Local development launcher
The MCP package uses the official @trycourier/courier Node SDK (Stainless-generated) for all API calls. The SDK stays in sync with the Courier API spec automatically, so tool implementations are thin wrappers with proper error handling.
| Header | Required | Description |
|---|---|---|
api_key | Yes | Your Courier API key. Get one at app.courier.com/settings/api-keys. |
base_url | No | Override the API base URL. Defaults to https://api.courier.com. |
# Install dependencies
cd mcp && npm install && cd ../server && npm install && cd ..
# Start development server
sh dev.sh
# Run tests
cd mcp && npm test
# Build
cd mcp && npm run build
The @trycourier/courier SDK dependency in mcp/ is updated automatically via Dependabot. Dependabot checks npm daily and opens a PR when a new SDK version is available.
breaking-review): check whether any tool input schemas or error handling need updates before merging.After merging a Dependabot PR, the full pipeline runs automatically:
auto-version-bump.yml bumps the MCP package patch version and pushes to main.publish-npm.yml publishes the new version to npm.bump-services.yml opens a PR in trycourier/services to update the hosted MCP server.Secrets required (set in repo Settings > Secrets and variables > Actions):
REPO_TOKEN — PAT with Contents: Read and write on this repo. Used by auto-version-bump.yml to push to main and trigger downstream workflows.SERVICES_REPO_TOKEN — PAT with Contents: Read and write + Pull requests: Read and write on trycourier/services. Used by bump-services.yml to open dependency bump PRs.NPM_TOKEN — npm publish token. Used by publish-npm.yml.Run Claude Code as an MCP server so any agent can delegate coding tasks to it
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