Sendlane
Manage email lists, contacts, tags and view campaign performance in Sendlane
Connect to Sendlane to manage audience lists, contacts, tags and custom fields. Read email campaign and SMS message reports including opens, clicks, bounces and revenue metrics.
Try asking Muse: "Show me the open and click rates for my last email campaign"
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Source: Found in the official MCP Registry (io.usefulapi/sendlane) · First listed October 29, 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://sendlane.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
Sendlane 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://sendlane.usefulapi.io/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 1545ms. 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 · 31
sendlane_list_listsList the audience lists of the account: id, name, description, status, created date. GET /lists.sendlane_get_listOne audience list by id. GET /lists/{listId}.sendlane_list_list_contactsContacts on one list: email, name, phone, subscribed/suppressed state, tags, custom fields, lifetime value. GET /lists/{listId}/contacts.sendlane_list_list_unsubscribedContacts that unsubscribed from one list. GET /lists/{listId}/unsubscribed.sendlane_list_contactsAll contacts of the account: email, name, phone, lists, tags, custom fields, subscribed/suppressed state. Filter by creation time with from/to. GET /contacts.sendlane_get_contactOne contact by id, with lists, tags, custom fields, consent, lifetime value and subscribed/suppressed state. GET /contacts/{contactId}.sendlane_list_unsubscribed_contactsContacts that unsubscribed from the account. GET /contacts/unsubscribed.sendlane_get_contact_subscriptionsThe list subscriptions of one contact: list, subscribed/suppressed state, who added it and when. GET /contacts/{contactId}/subscriptions.sendlane_get_contact_tagsThe tags on one contact. GET /contacts/{contactId}/tags.sendlane_get_contact_custom_fieldsThe custom field values of one contact. GET /contacts/{contactId}/custom-fields.sendlane_list_tagsThe contact tags of the account: id, name, audience count. GET /tags.sendlane_get_tagOne tag by id. GET /tags/{tagId}.sendlane_list_tag_contactsContacts that carry one tag. GET /tags/{tagId}/contacts.sendlane_list_custom_fieldsThe custom contact fields of the account: id, name, type. Use the ids when setting field values. GET /custom-fields.sendlane_list_segmentsThe segments of the account: id, name, list, match rule, last count. GET /segments.sendlane_list_segment_contactsContacts in one segment: id, email, name, phone. GET /segments/{segmentId}/contacts.sendlane_list_campaignsEmail campaigns: id, name, status, scheduled and sent time, automation. GET /campaigns.sendlane_get_campaignOne email campaign by id. GET /campaigns/{campaignId}.sendlane_get_campaign_reportStatistics of one email campaign: sent, opens, clicks (unique too), bounced, suppressed, unsubscribed, spam, revenue. from/to limit the period. GET /campaigns/{campaignId}/report.sendlane_list_sms_messagesSMS messages (campaign and automation): id, name, campaign status, automation. GET /sms-messages.sendlane_get_sms_reportStatistics of one SMS message: sent, delivered, clicks, failed, replies, unsubscribed, credits, revenue. from/to limit the period. GET /sms-messages/{messageId}/report.sendlane_list_sender_profilesThe sender profiles (from name, from/reply email, postal address, default flag). GET /senders.sendlane_create_listWRITE: create an audience list. Not idempotent: calling it twice makes two lists. POST /lists.sendlane_update_listWRITE: rename a list and/or change its description (a full update: name is required, an omitted description may be cleared). PUT /lists/{listId}.sendlane_add_contacts_to_listWRITE: add one or more contacts (up to 100) to a list; a contact that does not exist is created. Each needs an email or a phone. Sendlane accepts the request for processing (HTTP 202). Only add people who agreed to receive marketing. POST /lists/{listId}/contacts.sendlane_remove_contact_from_listWRITE: remove one contact from one list (the contact stays in the account). DELETE /lists/{listId}/contacts/{contactId}.sendlane_unsubscribe_contactWRITE: unsubscribe one contact from email marketing. The contact stops receiving campaigns. POST /contacts/{contactId}/unsubscribe.sendlane_create_tagWRITE: create a contact tag. POST /tags.sendlane_add_contact_tagsWRITE: put one or more existing tags on a contact. POST /contacts/{contactId}/tags.sendlane_remove_contact_tagWRITE: remove one tag from a contact (the tag itself is kept). DELETE /contacts/{contactId}/tags/{tagId}.sendlane_set_contact_custom_fieldsWRITE: add custom field values to a contact. Field ids come from sendlane_list_custom_fields. POST /contacts/{contactId}/custom-fields.Recent checks
Link
https://sendlane.usefulapi.io/mcpQuestions about Sendlane in Muse
How do I connect Sendlane to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Sendlane to help me. It is a free service with an MCP server at https://sendlane.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 Sendlane working right now?
At the last check (October 29, 2026, 09:16 UTC) the endpoint was working, answering in 1545ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is Sendlane 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 Sendlane do in Muse?
It exposes 31 tools, including sendlane_list_lists, sendlane_get_list, sendlane_list_list_contacts, sendlane_list_list_unsubscribed. For example, you could ask Muse: "Show me the open and click rates for my last email campaign"
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This listing was added from public sources (Found in the official MCP Registry (io.usefulapi/sendlane)). If you build Sendlane, claim it to correct the details and get your badge.
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