Buttondown MCP by usefulapi
Read Buttondown subscribers, emails, analytics and automations; add subscribers; write email drafts.
MCP server · by usefulapi.io
About
Buttondown MCP by usefulapi is an MCP server published by usefulapi.io. Marketplaces we read that list it: 1 (Official MCP Registry). The last change we recorded was on 2026-10-23. As of our marketplace pass on 2026-10-23.
What it asks for
- Runs remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a remote MCP server
Built from what Official MCP Registry declares.
claude mcp add --transport http buttondown https://buttondown.usefulapi.io/mcp
[mcp_servers.buttondown]
url = "https://buttondown.usefulapi.io/mcp"
{
"mcpServers": {
"buttondown": {
"url": "https://buttondown.usefulapi.io/mcp"
}
}
}
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.4.0 | Forks (GitHub): 0 Stars (GitHub): 0 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
- Official MCP Registry: released version 1.4.0 (was 1.3.4)
- Official MCP Registry: released version 1.3.4 (was 1.3.3)
- Official MCP Registry: released version 1.3.3 (was 1.0.0)
- Became a product we track
- Official MCP Registry: appeared
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
Manage one or more Buttondown newsletters from Claude Code — multi-newsletter config, reusable email templates, drafts, sends, subscribers, and API ops grounded in a locally…
-
Manage beehiiv newsletters, posts, podcasts, community, subscribers, and analytics.
-
Search and analyze 7M+ newsletters, issues, contacts, and chart rankings from Reletter.
-
Inspect Moosend lists, subscribers, segments and campaign stats, and add or unsubscribe subscribers.
-
Manage lists, contacts and campaigns, and read campaign performance reports on EmailOctopus.
-
Read subscribers, groups, campaigns, fields, segments, automations, webhooks; safe additive writes.
-
Read audiences, members, campaigns and reports; add, update, tag and archive subscribers.
-
Manage Sendlane lists, contacts, tags and custom fields; read campaign and SMS reports.
-
Substack drafts, Notes, analytics and consented subscribers. Long-form posts stay draft-only.
-
FastMCP server for Substack — publish Notes and posts, pull analytics, manage dr
FastMCP server for Substack — publish Notes and posts, pull analytics, manage drafts, pluggable…
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Agent skills for working with Resend to send and receive emails — email API integration, agent inbox, CLI, React Email components, and deliverability best practices. Includes the…
-
AI-native email marketing for Claude. Compose emails, build automation flows, manage contacts, and send campaigns — all from your terminal. Powered by 20 MCP tools and an expert…
-
Work with the Airship platform through natural language - featuring live access to Airship APIs and documentation resources, plus structured workflows for implementation tasks…
-
Brand-aware lifecycle email marketing for Klaviyo. Draft, analyze, and diagnose emails from a one-line prompt. Audit email marketing performance, find ideas for what to send next…
-
Cold email campaigns, email warmup, LinkedIn outreach, and 20M+ B2B lead database. Connect your WarmySender account to Claude via remote MCP server with OAuth 2.1. Manage…
Has a listing on Claude Code: claude-plugins-official (5)
-
Agent skills for working with Resend to send and receive emails — email API integration, agent inbox, CLI, React Email components, and deliverability best practices. Includes the…
-
Marketing automation, CRM, and email marketing powered by ActiveCampaign. Manage contacts, campaigns, automations, deals, and get AI-powered marketing insights — all from Claude.
-
Create, configure and edit draft Pendo Orchestrate email journeys, including multi-email and conditional split flows, via the Pendo connector. Journeys stay in draft; activation…
-
Work with Clay from Claude Code: set up and sign in to the clay CLI, query and analyze Clay tables, search Clay's GTM database for people and companies, manage audiences, signals…
-
Intercom integration for Claude Code. Search conversations, analyze customer support patterns, look up contacts and companies, and install the Intercom Messenger. Connect your…
Has a listing on Claude: knowledge-work-plugins (5)
-
Marketing automation, CRM, and email marketing powered by ActiveCampaign. Manage contacts, campaigns, automations, deals, and get AI-powered marketing insights — all from Claude.
-
Create, configure and edit draft Pendo Orchestrate email journeys, including multi-email and conditional split flows, via the Pendo connector. Journeys stay in draft; activation…
-
Intercom integration for Claude Code. Search conversations, analyze customer support patterns, look up contacts and companies, and install the Intercom Messenger. Connect your…
-
Bring Pendo product analytics into Claude Code: account health, feature adoption, session replay lookup and triage, feedback analysis, and data-informed planning grounded in real…
-
Run your HubSpot sales workflow directly from Claude. Adds skills that cover the full sales day: import contacts and deals into HubSpot, get a prioritised morning brief, prep for…
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Analyze Mixpanel data with the mixpanel_headless Python SDK and Codex skills.
-
Work with Gmail using the configured Gmail app connector.
-
PostHog gives your AI agent direct access to your product analytics, feature flags, experiments, error tracking, surveys, logs, and LLM analytics. Ask questions about your data…
-
Work with Outlook Email using the configured Microsoft Outlook app connector.
-
Connect Google Calendar for scheduling, availability, daily briefs, and event management.
Has a listing on Community GitHub marketplaces (5)
-
Manage one or more Buttondown newsletters from Claude Code — multi-newsletter config, reusable email templates, drafts, sends, subscribers, and API ops grounded in a locally…
-
Substack drafts, Notes, analytics and consented subscribers. Long-form posts stay draft-only.
-
Email marketing operating manual for AI agents, with hard send-safety gates: campaigns, newsletters and flows, deliverability and DNS, switching ESPs, compliance, anti-slop copy…
-
Agent skills for working with Resend to send and receive emails — email API integration, agent inbox, CLI, React Email components, and deliverability best practices. Includes the…
-
This skill transforms Claude into a world-class email marketing specialist following Andre Chaperon's Soap Opera Sequence methodology and Frank Kern's Behavioral Dynamic Response…
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Query Anarlog meetings locally, or connect through OAuth to read opted-in Cloud snapshots.
-
Self-configuring status briefing generator. Learns your communication style from examples, discovers your data sources, and produces draft updates for any audience on demand.
-
Explore grouped customer feedback signals by impact and drill into a theme to guide product next steps.
-
See your local Copilot token usage by day, model, and session, and get tips to use it more efficiently.
-
Comprehensive collection for building declarative agents with Model Context Protocol integration for Microsoft 365 Copilot
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
workiq-productivity
WorkIQ productivity skills powered by the local WorkIQ CLI — read-only insights across email, meetings, calendar, Teams, SharePoint, projects, and people.
-
Microsoft Dataverse plugin for coding agents, covering record CRUD, bulk data operations, advanced queries, schema and metadata, administration, security, environment management…
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
mcp-apps
Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.
Has a listing on Cursor: cursor/plugins (5)
-
Manage subscribers, groups, campaigns, and automations.
-
Build campaigns, manage segments, and query people.
-
Run your beehiiv newsletter from chat: draft and edit posts, organize subscribers with tags, custom fields, and segments, build automations, and review publication, post, and…
-
Manage profiles, segments, campaigns, and flows.
-
Manage contacts, email and SMS campaigns, and CRM deals.
Has a listing on Docker MCP Catalog (5)
-
The official MCP server to send emails and interact with Resend.
-
Audiense Insights MCP Server is a server based on the Model Context Protocol (MCP) that allows Claude and other MCP-compatible clients to interact with your Audiense Insights…
-
Read and write access to Airtable database schemas, tables, and records.
-
DevHub CMS LLM integration through the Model Context Protocol.
-
Model Context Protocol (MCP) server for the Webflow Data API.
Has a listing on Official MCP Registry (5)
-
Manage beehiiv newsletters, posts, podcasts, community, subscribers, and analytics.
-
Search and analyze 7M+ newsletters, issues, contacts, and chart rankings from Reletter.
-
Inspect Moosend lists, subscribers, segments and campaign stats, and add or unsubscribe subscribers.
-
Manage lists, contacts and campaigns, and read campaign performance reports on EmailOctopus.
-
Read subscribers, groups, campaigns, fields, segments, automations, webhooks; safe additive writes.
Has a listing on npm registry (MCP servers) (5)
-
Search Help Scout conversations, customers, organizations, threads, and inboxes with AI assistants
-
dav-mcp io.github.PhilflowIO/dav-mcp
AI-orchestrated calendars, contacts & tasks across any DAV platform. 27 tools, field-agnostic.
-
evite-mcp io.github.chrischall/evite-mcp
Evite for Claude — list events, guest lists & RSVPs, RSVP, message guests, and create/edit events
-
imap-mcp-server io.github.nikolausm/imap-mcp-server
IMAP/SMTP MCP server to search, read, organize, send, reply & forward email for AI assistants
-
Read, search, draft, send, and organize email through Gmail, Outlook, and IMAP/SMTP mailboxes.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Want this mark on your plugin in our catalog?
Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works
You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.