Clearstream MCP by usefulapi

Clearstream MCP by usefulapi

Use your Clearstream account from Claude, Cursor, or any MCP client. It reads lists, subscribers, texts and statistics, and sends texts or changes subscribers only with written consent. Hosted, no local install: connect with your own credentials.

Live endpoint: https://clearstream.usefulapi.io/mcp · Homepage: https://usefulapi.io

Connect

• Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://clearstream.usefulapi.io/mcp.
• Claude Code: claude mcp add --transport http clearstream https://clearstream.usefulapi.io/mcp, then run /mcp to log in.
• VS Code: Add to VS Code.
• Cursor and other clients: add the URL as a remote MCP server:

{
  "mcpServers": {
    "clearstream": {
      "url": "https://clearstream.usefulapi.io/mcp"
    }
  }
}

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your Clearstream credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/clearstream/

On first connect you provide your Clearstream API key, created inside your Clearstream account, and, for a subaccount key only, the Account ID. The server validates it and stores it per user. No keys go in config files.

Tools

Tool	Type	What it does
clearstream_get_account	read	Get account
clearstream_list_numbers	read	List sending numbers
clearstream_list_lists	read	List lists
clearstream_get_list	read	Get a list
clearstream_list_subscribers_of_list	read	List subscribers in a list
clearstream_list_subscribers	read	List subscribers
clearstream_get_subscriber	read	Get a subscriber
clearstream_list_tags	read	List tags
clearstream_list_texts	read	List texts
clearstream_get_text_stats	read	Get text statistics
clearstream_send_text	write	Send a text
clearstream_add_subscriber	write	Add a subscriber
clearstream_add_subscriber_to_list	write	Add a subscriber to a list
clearstream_remove_subscriber_from_list	write	Remove a subscriber from a list
clearstream_tag_subscribers	write	Tag subscribers
clearstream_usage_status	meta	Usage status (free-tier meter)
clearstream_request_feature	meta	Request a missing feature
clearstream_upgrade	meta	Upgrade to Pro or Pro+
clearstream_cancel_subscription	meta	Cancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

Plan	Price	Limit
Free	$0	50 tool calls / month
Pro (per user)	$9/mo or $90/yr (2 months free)	Unlimited*

*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].

Pro covers this server only. Subscribe with clearstream_upgrade (it returns a Stripe Checkout link). Cancel any time with clearstream_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running clearstream_upgrade before then undoes the cancel. Or write to [email protected].

License

MIT — see LICENSE. Documentation only; the server is hosted.