SlickText
Manage SMS campaigns, contacts, and inbox conversations for your business.
Connect to SlickText to read and manage contacts, lists, campaigns, and analytics. Create and update subscriber information, view campaign performance, and access two-way inbox conversations. Requires a SlickText account.
Try asking Muse: "Show me the performance stats for my last SMS campaign and how many new subscribers I added this month."
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Source: Found in the official MCP Registry (io.usefulapi/slicktext) · First listed October 29, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 1 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://slicktext.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
SlickText 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://slicktext.usefulapi.io/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 1773ms. Worked in 100% of checks over 30 days.
Screening · October 29, 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 · 24
slicktext_get_brandGet the SlickText brand this API key belongs to: brand_id, name, website, sending-number registration details, opt-in / double-opt-in messages, inbox settings and the message credit limit. Every other tool works within this brand. GET /brands.slicktext_get_credit_usageMessage credits for the current billing period: total_credits (subscription + rollover + purchased), credits_used, credits_available and the credit limit. GET /brands/{brand_id}/usage.slicktext_list_contactsList the brand's contacts (subscribers) with name, mobile_number, email, opt_in_status, source, custom_fields and dates. Filters are exact, case-sensitive matches (SlickText has no partial search). Paged: returns count, has_more and next_offset. GET /brands/{brand_id}/contacts.slicktext_find_contactFind contacts by mobile number or email address (exact match). A 10-digit US number is matched as +1XXXXXXXXXX, the way SlickText stores numbers. Use it before creating a contact to avoid duplicates. GET /brands/{brand_id}/contacts?mobile_number=… or ?email=….slicktext_get_contactGet one contact by id: name, mobile_number, email, birthdate, address, opt_in_status, source, custom_fields, time zone and dates. GET /brands/{brand_id}/contacts/{id}.slicktext_list_custom_fieldsList the brand's contact custom fields: name, internal_name (the key used in contact filters and writes), data_type and description. GET /brands/{brand_id}/custom-fields.slicktext_list_listsList the brand's contact lists (contact_list_id, name, description, created). Optional exact name filter. GET /brands/{brand_id}/lists.slicktext_get_listGet one contact list by id plus its contact count (all statuses: subscribed, not subscribed, unsubscribed, blocked). GET /brands/{brand_id}/lists/{id} and /lists/{id}/contacts/count.slicktext_list_list_contactsList the contacts in one contact list (paged). GET /brands/{brand_id}/lists/{id}/contacts.slicktext_list_segmentsList the brand's segments (rule-based contact groups: segment_id, name, description). GET /brands/{brand_id}/segments.slicktext_list_segment_contactsList the contacts that currently match one segment (paged). GET /brands/{brand_id}/segments/{id}/contacts.slicktext_list_campaignsList the brand's SMS/MMS campaigns: name, body, status (e.g. draft, scheduled, queued, sent), scheduled/started/finished times, completion_percentage and audience (lists/segments and size). GET /brands/{brand_id}/campaigns.slicktext_get_campaignGet one campaign by id: body, media_url, status, audience_size, schedule and completion. GET /brands/{brand_id}/campaigns/{id}.slicktext_get_campaign_statsPerformance of one campaign: contacts reached, clicks, click_rate, unique clicks, unsubscribes, unsubscribe_rate, orders, revenue, average order value, revenue per message, plus the campaign, its audiences and links. GET /brands/{brand_id}/analytics/campaigns/{id}.slicktext_get_analyticsBrand-level analytics. metric: contacts (current totals), contact_growth, contact_add_delete_events, opt_in_status_events, campaigns, messages (messages sent), message_credits, inbox_users (assignments, closures, response times per user), inbox_tags. Optional group (allowed per mslicktext_list_keywordsList the brand's text-to-join keywords (word, description, active, auto-response and opt-in messages, double opt-in). GET /brands/{brand_id}/keywords.slicktext_get_keywordGet one keyword by id, including the contact_list_ids that people who text it are added to. GET /brands/{brand_id}/keywords/{id}.slicktext_list_messagesList individual SMS/MMS messages sent and received by the brand: to, from, body, direction, source (Campaign, Keyword, InboxThread, API …), status (delivered, undelivered …), credits and the contact. Filters are exact matches; use to/from with a phone number to read one contact'sslicktext_list_conversationsList two-way inbox conversations: status (open, pending, closed), the contact, the last message and its direction/time, assigned user, tags and unread state. GET /brands/{brand_id}/inbox-threads.slicktext_get_conversationGet the content of one inbox conversation by its id (the _id from slicktext_list_conversations). For the message-by-message history also call slicktext_list_messages with source=InboxThread and source_id=<conversation id>. GET /brands/{brand_id}/inbox-threads/{id}/content.slicktext_list_inbox_tagsList the inbox tags used to label conversations (inbox_tag_id, name, color, description). GET /brands/{brand_id}/inbox-tags.slicktext_create_contactWRITE: add a contact to the brand. By default the contact is created as 'not subscribed' and gets no text. Set opt_in_status='subscribed' ONLY for people who gave explicit permission to receive texts (SlickText has a zero-tolerance policy for unsolicited texts). force_double_opt_slicktext_update_contactWRITE: change fields of an existing contact (only the fields you pass are sent). opt_in_status can mark a contact unsubscribed or blocked; set it to 'subscribed' ONLY when the person explicitly agreed to receive texts. WARNING: SlickText workflows can trigger on this event (Contaslicktext_add_contact_to_listsWRITE: add one contact to one or more contact lists (it does not change the contact's opt-in status; lists are also campaign audiences). Returns SlickText's count of memberships added. WARNING: SlickText workflows can trigger on this event (Contact Created / Contact Field ChangedRecent checks
Link
https://slicktext.usefulapi.io/mcpQuestions about SlickText in Muse
How do I connect SlickText to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use SlickText to help me. It is a free service with an MCP server at https://slicktext.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 SlickText working right now?
At the last check (October 29, 2026, 10:31 UTC) the endpoint was working, answering in 1773ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is SlickText safe to connect to Muse?
It was screened on October 29, 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 SlickText do in Muse?
It exposes 24 tools, including slicktext_get_brand, slicktext_get_credit_usage, slicktext_list_contacts, slicktext_find_contact. For example, you could ask Muse: "Show me the performance stats for my last SMS campaign and how many new subscribers I added this month."
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