Seamless.ai MCP server
Yes. Seamless.ai publishes an official MCP server at https://mcp.seamless.ai/mcp. It's hosted and lets you sign in with your Seamless.ai account. It offers 57 tools. We last checked it on 2 Oct 2026.
Official MCP server
Seamless.ai MCP server
- Address
- https://mcp.seamless.ai/mcp
- Runs
- Hosted
- Sign-in
- Official MCP Registry
- Not listed
- How we know it's official
- Live check of the vendor's own web address
- Documentation
- docs.seamless.ai/mcp-docs
- Tools
- 57 tools · from Seamless.ai's documentation
- First seen
- 1 Oct 2026
- Last checked
-
Reachable ·
1 Oct 2026: reachable1 Oct 2026: reachable1 Oct 2026: reachable2 Oct 2026: reachable
Seamless.ai MCP server tools (57)
The server needs sign-in before it lists its tools, so these are as Seamless.ai's documentation names them (read 2 Oct 2026). They may be out of date.
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search_contactsSearch contacts by company, title, seniority, location, timezone, industry, SIC/NAICS code, company type, funding, and more.
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search_companiesSearch companies by name, domain, location, industry, SIC/NAICS code, size, revenue, company type, funding, and more.
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lookup_locationsFind the exact spellings a location filter will match, with the contact count behind each.
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research_contactsEnrich contacts for verified email and phone.
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poll_contact_researchPoll contact research with requestIds from research_contacts.
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research_companiesEnrich companies for revenue, size, technologies, etc.
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poll_company_researchPoll company research with requestIds from research_companies.
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get_creditsCurrent credit balance and usage.
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get_my_contactsSaved/researched contacts within a date range (max 30 days).
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get_my_companiesSaved/researched companies within a date range (max 30 days).
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update_my_contactUpdate saved contacts.
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update_my_companyUpdate saved companies.
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get_listsList all contact lists, or get one by ID.
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create_listCreate a new contact list.
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update_listRename an existing list.
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delete_listPermanently delete a list (not the contacts).
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list_saved_searchesList all saved searches, or get one by ID.
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create_saved_searchSave search filter values as a named saved search.
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update_saved_searchUpdate name, values, or sort options.
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delete_saved_searchPermanently delete a saved search.
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list_campaignsList campaigns or get one by ID.
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create_campaignCreate a campaign; optional inline steps and contactIds.
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update_campaignUpdate name, visibility, or linked email accounts.
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delete_campaignDelete campaign and all steps/tasks.
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clone_campaignCopy campaign (steps, not contacts).
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add_contacts_to_campaignAdd saved contacts.
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remove_contacts_from_campaignRemove contacts.
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list_campaign_contactsList contacts with engagement status.
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list_campaign_stepsList steps with type, status, delay.
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create_campaign_stepAdd email, call, or task step.
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update_campaign_stepUpdate step content or position.
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delete_campaign_stepDelete a step.
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execute_campaign_actionstart, pause, resume, complete, archive, etc.
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execute_campaign_step_actionPause, resume, or skip a step.
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get_campaign_metricsPer-step engagement metrics.
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list_templatesList templates or get one by ID.
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create_templateCreate template with subject and body.
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update_templateUpdate name, subject, or body.
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delete_templatePermanently delete a template.
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list_email_accountsList connected sender addresses.
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create_email_draftCreate draft (not sent).
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get_email_draftRetrieve a draft.
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update_email_draftUpdate draft content.
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send_email_draftSend a saved draft.
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send_emailSend in one step.
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send_bulk_emailSend to saved contacts matching filters.
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log_callLog call outcome for a contact.
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list_call_dispositionsList disposition options.
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list_call_sentimentsList sentiment options.
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list_tasksList tasks or get one by ID.
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create_taskCreate email, call, or custom task.
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update_taskUpdate name, due date, priority, status.
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delete_taskPermanently delete a task.
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execute_task_actionpause, reschedule, complete, cancel, etc.
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get_activity_feedEngagement feed: opens, replies, bounces, calls.
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list_email_footersList email footers for campaigns and templates.
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send_email_previewSend preview to yourself before launch.
Connect your AI to Seamless.ai
Add the official Seamless.ai MCP server to Claude, ChatGPT or your editor.
Connect Seamless.ai MCP to Claude
Claude.ai and Claude Desktop
Open Customize, then Connectors.
Click +, then Add custom connector.
Name it Seamless.ai, paste the address below and click Add.
Connect Seamless.ai MCP to ChatGPT
Open Settings, then Apps, then Advanced settings.
Turn on Developer mode, then click Create.
Name it Seamless.ai and paste the address below.
Connect Seamless.ai MCP to Cursor
Opens Cursor if it's installed. If nothing happens, use the JSON below.
Connect Seamless.ai MCP to VS Code
Opens VS Code if it's installed. Otherwise add the JSON settings from the Cursor tab to your .vscode/mcp.json.
Seamless.ai MCP server questions
Does Seamless.ai have an official MCP server?
Yes. Seamless.ai publishes its MCP server itself. Its address is on Seamless.ai's own domain (mcp.seamless.ai). MartechDB only lists servers a vendor publishes, never community copies.
What is the Seamless.ai MCP server URL?
The address is https://mcp.seamless.ai/mcp.
Does the Seamless.ai MCP server need an API key?
No. You sign in with your Seamless.ai account (OAuth), and your AI client handles the rest.
How do I connect Seamless.ai MCP to Claude, ChatGPT or Cursor?
In Claude, add https://mcp.seamless.ai/mcp as a custom connector (Customize, Connectors, Add custom connector). In ChatGPT, turn on developer mode (Settings, Apps, Advanced settings) and create an app with the same address. In Cursor, use the Add to Cursor link on MartechDB's page, or paste the JSON settings into your mcp.json. In Claude Code, run: claude mcp add --transport http seamlessai https://mcp.seamless.ai/mcp
What can the Seamless.ai MCP server do?
It offers 57 tools, including search_contacts, search_companies, lookup_locations, research_contacts and poll_contact_research (as its documentation names them, read on 2 Oct 2026).
Is the Seamless.ai MCP server in the official MCP Registry?
No. Seamless.ai hasn't published it to the official MCP Registry.
Is the Seamless.ai MCP server working?
Yes. It answered our most recent check. We last checked it on 2 Oct 2026.
Use with AI
Connect your AI to MartechDB
Then ask it about Seamless.ai, or any of the 1,610 marketing tools with an official MCP server. Free, no sign-in.
Claude.ai and Claude Desktop
Open Customize, then Connectors.
Click +, then Add custom connector.
Name it MartechDB, paste the address below and click Add. There's no sign-in.
The free plan allows one custom connector. On Team and Enterprise plans, an owner adds the connector first.
Claude Code
Run this in your terminal:
ChatGPT
Open Settings, then Apps, then Advanced settings.
Turn on Developer mode, then click Create.
Name it MartechDB, paste the address below and choose No authentication.
Developer mode is on Plus and Pro plans, and on Business, Enterprise and Edu if an admin allows it.
API
The same data as JSON, with no sign-in. See the OpenAPI description for every endpoint and field.
CLI
Search the directory and print the command to connect a vendor's server, from your terminal. Needs Node 18 or later. View on npm
Show that your MCP server is verified
If you work at Seamless.ai, add this badge to your MCP docs or README. It's free, it's the same for every vendor, and it updates from our daily checks: it shows uptime while the server responds, and says so if it stops.
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