Clearstream
Read and manage Clearstream SMS lists, subscribers, tags and texts from Muse.
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.
Try asking Muse: "Send a text to my Clearstream subscribers about tomorrow's sale."
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Source: Found in the official MCP Registry (io.usefulapi/clearstream) · First listed November 7, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 3 h ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. 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.
https://clearstream.usefulapi.io/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Also use it in ChatGPT or Claude
Clearstream is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
Add it to ChatGPT
- 1
Open ChatGPT settings
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
- 2
Turn on developer mode
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
- 3
Create the connector
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
- 4
Use it in a chat
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
Add it to Claude
- 1
Open Claude settings
In Claude, open Settings, then Connectors.
- 2
Add a custom connector
Choose Add custom connector, give it a name, and paste the link.
- 3
Connect and use it
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://clearstream.usefulapi.io/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 158ms. Worked in 100% of checks over 30 days.
Screening · November 7, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 15
clearstream_get_accountGet 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_numbersList the shortcodes and longcodes this account can send texts from, and which one is the default. Clearstream API: GET /v1/numbers.clearstream_list_listsList the subscriber lists (groups) in the account, with subscriber counts. Filter by name or locked state. Clearstream API: GET /v1/lists.clearstream_get_listGet one subscriber list: name, subscriber count, active texting subscriber count and sync status. Clearstream API: GET /v1/lists/{id}.clearstream_list_subscribers_of_listList the subscribers in one list, with optional name filters. Clearstream API: GET /v1/lists/{id}/subscribers.clearstream_list_subscribersSearch the account's subscribers by name or mobile number. Clearstream API: GET /v1/subscribers.clearstream_get_subscriberGet one subscriber by mobile number: name, opt-in status, lists and tags. Clearstream API: GET /v1/subscribers/{number}.clearstream_list_tagsList the subscriber tags in the account. Clearstream API: GET /v1/tags.clearstream_list_textsList 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_statsGet text volume statistics for a date range (YYYY-MM-DD, inclusive). Clearstream API: GET /v1/stats/texts.clearstream_send_textSend 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_subscriberCreate 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_listAdd 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_listRemove 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_subscribersAdd 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.Recent checks
Link
https://clearstream.usefulapi.io/mcpQuestions about Clearstream in Muse
How do I connect Clearstream to Muse?
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.
Is Clearstream working right now?
At the last check (November 8, 2026, 02:30 UTC) the endpoint was working, answering in 158ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is Clearstream safe to connect to Muse?
It was screened on November 7, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can Clearstream do in Muse?
It exposes 15 tools, including clearstream_get_account, clearstream_list_numbers, clearstream_list_lists, clearstream_get_list. For example, you could ask Muse: "Send a text to my Clearstream subscribers about tomorrow's sale."
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This listing was added from public sources (Found in the official MCP Registry (io.usefulapi/clearstream)). If you build Clearstream, claim it to correct the details and get your badge.
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