# Clearstream Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Clearstream

Read and manage Clearstream SMS lists, subscribers, tags and texts from Muse.

- Record: https://musedirectory.ai/connector/clearstream
- Category: Marketing & Ads
- Developer: usefulapi (https://usefulapi.io/clearstream/)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 158ms, checked 2026-11-08T02:30:48Z
- Endpoint: https://clearstream.usefulapi.io/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-11-07T22:06:35Z)
- Source: Found in the official MCP Registry (io.usefulapi/clearstream) https://registry.modelcontextprotocol.io/v0/servers?search=io.usefulapi%2Fclearstream

Connects to Clearstream, an SMS marketing platform. Muse can read subscriber lists, tags and message history, send texts, and update subscriber records for a small business.

Example request: "Send a text to my Clearstream subscribers about tomorrow's sale."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Clearstream to help me. It is a free service with an MCP server at https://clearstream.usefulapi.io/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- clearstream_get_account: Get the Clearstream account behind the API key: name, plan and settings. Good first call to confirm which account is connected. Clearstream API: GET /v1/account.
- clearstream_list_numbers: List the shortcodes and longcodes this account can send texts from, and which one is the default. Clearstream API: GET /v1/numbers.
- clearstream_list_lists: List the subscriber lists (groups) in the account, with subscriber counts. Filter by name or locked state. Clearstream API: GET /v1/lists.
- clearstream_get_list: Get one subscriber list: name, subscriber count, active texting subscriber count and sync status. Clearstream API: GET /v1/lists/{id}.
- clearstream_list_subscribers_of_list: List the subscribers in one list, with optional name filters. Clearstream API: GET /v1/lists/{id}/subscribers.
- clearstream_list_subscribers: Search the account's subscribers by name or mobile number. Clearstream API: GET /v1/subscribers.
- clearstream_get_subscriber: Get one subscriber by mobile number: name, opt-in status, lists and tags. Clearstream API: GET /v1/subscribers/{number}.
- clearstream_list_tags: List the subscriber tags in the account. Clearstream API: GET /v1/tags.
- clearstream_list_texts: List texts in the account's inbox history, incoming or outgoing, optionally for one number. Use the cursor from a previous reply for the next page. Clearstream API: GET /v1/texts.
- clearstream_get_text_stats: Get text volume statistics for a date range (YYYY-MM-DD, inclusive). Clearstream API: GET /v1/stats/texts.
- clearstream_send_text: Send one SMS to one or more numbers. This sends real messages to real phones and cannot be undone. The customer must hold explicit written consent from every recipient before you use this tool (Clearstream terms, section 4G). Opted-out numbers are skipped (for a list of numbers) 
- clearstream_add_subscriber: Create or add one subscriber, with optional lists and tags. By default the subscriber must confirm opt-in by text. The customer must hold explicit written consent from every recipient before you use this tool (Clearstream terms, section 4G). Clearstream API: POST /v1/subscribers.
- clearstream_add_subscriber_to_list: Add one mobile number to a subscriber list. Locked lists cannot change. The customer must hold explicit written consent from every recipient before you use this tool (Clearstream terms, section 4G). Clearstream API: POST /v1/lists/{id}/subscribers.
- clearstream_remove_subscriber_from_list: Remove one mobile number from a subscriber list. The subscriber's opt-in status does not change. Locked lists cannot change. Clearstream API: DELETE /v1/lists/{id}/subscribers/{number}.
- clearstream_tag_subscribers: Add a tag to up to 100 subscribers by mobile number. The customer must hold explicit written consent from every recipient before you use this tool (Clearstream terms, section 4G). Clearstream API: POST /v1/tags/{id}/subscribers.

Screening checks:
- MCP handshake: pass (Answered in 147ms)
- Domain against threat feeds (Cloudflare security DNS): pass (clearstream.usefulapi.io, usefulapi.io not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: n/a (Tools are behind sign-in)
- Inputs asking for passwords, card numbers or seed phrases: n/a (Tools are behind sign-in)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)