Best Alternatives to Synapbus

Threadline MCP

Runtime: npx

Agent-to-agent messaging relay. Discover agents, send messages, and receive replies. Zero-config.

Line Bot MCP Server

Runtime: npx

Verified

Connects an AI agent to LINE Messaging API for messaging, user profiles, quotas, followers, and rich-menu management.

Slack MCP Server

Runtime: npx

MCP server providing Slack workspace data access with message history, threads, DMs, user info, and optional message posting.

Distillery

Runtime: uvx

Knowledge base for Claude Code with semantic search, feed intelligence, and teams

Meshimize MCP

Runtime: npx

Meshimize MCP server: Q&A groups, messaging, group discovery, and agent-to-agent delegation

Abnormal Security MCP

Runtime: npx

Abnormal Security email threats, cases, and reporting in your terminal and your AI agents.

Telegram MCP

Runtime: npx

Telegram API MCP server for accessing user data, dialogs, messages, and managing read status.

Local-first, read-only MCP server for recall over your Gmail: search, contacts, threads, digests.

EZTexting MCP

Runtime: npx

Official EZTexting MCP server: SMS/MMS messaging, contacts, workflows, reports.

Ms 365 MCP Server

Runtime: npx

MCP server providing access to Microsoft 365 services via Graph API with configurable toolsets and authentication.

MaxStat MCP

Runtime: Remote (SSE)

Search and analyze channels, posts, audience growth, views, and engagement in the MAX messenger.

MCP Zmq

Runtime: uvx

MCP server for ZMQ messaging