Sarbacane
Manage email campaigns, contact lists, and subscriber data in Sarbacane
Connect to Sarbacane email marketing platform to read campaigns and statistics, manage contact lists and custom fields, view blacklists and unsubscribers, and draft new email campaigns. Campaigns created are saved as drafts and must be sent from Sarbacane.
Try asking Muse: "Show me the open and click rates for my last email campaign and add these new contacts to my subscriber list."
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Source: Found in the official MCP Registry (io.usefulapi/sarbacane) · First listed October 30, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 2 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://sarbacane.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
Sarbacane 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://sarbacane.usefulapi.io/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 754ms. Worked in n/a of checks over 30 days.
Screening · October 30, 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 · 19
sarbacane_get_creditsThe account's remaining credits per type (email campaigns, SMS, eye tracking, Sendkit emails) with expiry date and subscription type. GET /v1/credits.sarbacane_list_usersUsers and pending invitations of the Sarbacane account (name, email, role, team). GET /v1/users.sarbacane_list_listsAll contact lists of the account, with their ids. Use the ids for contacts, fields and campaigns. GET /v1/lists.sarbacane_list_list_fieldsThe custom fields (columns) of a contact list: id, caption and type (STRING, BOOL, INT, DATE). Field ids are the keys used when writing contacts. GET /v1/lists/{listId}/fields.sarbacane_list_contactsContacts of one list (personal data: email, phone, custom fields). Filter by email, phone, a text search across fields, or the modification date. GET /v1/lists/{listId}/contacts.sarbacane_create_contactWRITE: add a contact to a contact list. Give an email, a phone number or both, and optional custom field values. Adds a new record; use sarbacane_upsert_contact to update an existing contact. POST /v1/lists/{listId}/contacts.sarbacane_upsert_contactWRITE: add a contact to a list, or update it when the same email/phone pair already exists (custom field values are overwritten). POST /v1/lists/{listId}/contacts/upsert.sarbacane_list_blacklistsAll blacklists (suppression lists) of the account, with their ids. GET /v1/blacklists.sarbacane_list_blacklist_entriesEntries of a blacklist by kind: bounces (invalid addresses), unsubscribers or complaints (personal data: email, phone). Filter by email, phone or modification date. GET /v1/blacklists/{blacklistId}/{bounces|unsubscribers|complaints}.sarbacane_add_unsubscriberWRITE: record an email and/or phone as unsubscribed in a blacklist, so campaigns using that blacklist skip it. Cannot be undone with these tools. POST /v1/blacklists/{blacklistId}/unsubscribers.sarbacane_list_campaignsCampaigns of the account (id, name, kind, created/edited, recipient count). Filter by state or a text in the name or subject. GET /v1/campaigns.sarbacane_get_campaignOne campaign: state, kind, blacklists, send ids, sent date. The send id is needed to see content. GET /v1/campaigns/{campaignId}.sarbacane_get_campaign_reportStatistics of a campaign per send: delivered count, opens, openers, clicks, clickers, unsubscribers, devices and operating systems. GET /v1/reports/{campaignId}.sarbacane_list_campaign_recipientsRecipients attached to a campaign (personal data: email, phone). GET /v1/campaigns/{campaignId}/recipients.sarbacane_list_webhooksWebhook subscriptions of the account: url, display name and subscribed event kinds. GET /v1/webhooks.sarbacane_create_email_campaignWRITE: create a new email campaign as a DRAFT. It is never sent by these tools: add content (sarbacane_set_campaign_content or sarbacane_import_campaign_template) and a contact list (sarbacane_set_campaign_list), then send it from Sarbacane. POST /v1/campaigns/email.sarbacane_set_campaign_contentWRITE: set the HTML (and optional plain-text) content of an email campaign's send, replacing what was there. Without send_id the campaign's only send is used (an A/B test campaign has several: pass one). POST /v1/campaigns/{campaignId}/send/{sendId}/content.sarbacane_import_campaign_templateWRITE: load a saved template's content into an email campaign, replacing its content. POST /v1/campaigns/{campaignId}/content.sarbacane_set_campaign_listWRITE: import a contact list's contacts as the recipients of a campaign. It does not send the campaign. POST /v1/campaigns/{campaignId}/list.Link
https://sarbacane.usefulapi.io/mcpQuestions about Sarbacane in Muse
How do I connect Sarbacane to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Sarbacane to help me. It is a free service with an MCP server at https://sarbacane.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 Sarbacane working right now?
At the last check (October 30, 2026, 00:21 UTC) the endpoint was working, answering in 754ms. It is checked every 15 minutes.
Is Sarbacane safe to connect to Muse?
It was screened on October 30, 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 Sarbacane do in Muse?
It exposes 19 tools, including sarbacane_get_credits, sarbacane_list_users, sarbacane_list_lists, sarbacane_list_list_fields. For example, you could ask Muse: "Show me the open and click rates for my last email campaign and add these new contacts to my subscriber list."
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