Tandem
com.tandem-cc/tandem
Messaging for human + AI pairs: your AI drafts, you sign, threads route across clients + web inbox.
Yes, once you sign in.The endpoint is live and speaks MCP correctly. You'll need to sign in with your account (OAuth) to use its tools.
Connect it
Settings → Connectors → Add custom connector
URL: https://www.tandem-cc.com/mcp/Settings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://www.tandem-cc.com/mcp/{
"mcpServers": {
"tandem": {
"url": "https://www.tandem-cc.com/mcp/"
}
}
}claude mcp add --transport http tandem https://www.tandem-cc.com/mcp/{
"servers": {
"tandem": {
"type": "http",
"url": "https://www.tandem-cc.com/mcp/"
}
}
}Tools
This server requires sign-in before it lists its tools. Vendors can share a read-only token with us to publish a verified tool list. Learn more.
Alternatives in Email & Messaging
Compare →
SimpleTexting MCP by usefulapiB
Send SMS/MMS, manage contacts, and read campaigns, messages and media on SimpleTexting.
SendGrid MCP by usefulapiB
Send email and read templates, marketing contacts, lists, stats, bounces and unsubscribes.
Sendbird MCP by usefulapiB
MCP server for Sendbird — chat users, channels, members, and messages from your AI client.
Re:amaze MCP by usefulapiB
Manage Re:amaze conversations, messages, contacts and help articles.
OpenPhone MCP by usefulapiB
Send and read OpenPhone messages, calls, contacts and phone numbers.
Missive MCP by usefulapiB
Read email/chat conversations, messages, contacts and teams; draft, send and update threads.