Synapbus MCP Server

Local-first, MCP-native agent-to-agent messaging service. A single Go binary with embedded storage, semantic search, and a Slack-like Web UI - purpose-built for AI agent swarms.

People who work with agent communication, local first and messaging and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Go.

VERIFIED ACTIVE

LAST COMMIT 2026-05-19 · ★ 2 · #105 OF 105 MAINTAINED COMMUNICATION · VERIFIED 2026-09-18

Apache-2.0 · Go servers · how we verify → /methodology

01 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

license Apache-2.0 - declared in the repository

registry namespace io.github.synapbus is GitHub-verified and matches the repo owner

02 · What Synapbus can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.17.0 · 2026-05-08

v0.14.6 · 2026-03-27

v0.14.5 · 2026-03-26

03 · Who maintains Synapbus

synapbus is maintained by synapbus. It's the only MCP server we track from this author; the repo dates to Mar 2026.

04 · Facts

repository
github.com/synapbus/synapbus
category
communication - ranked #105 of 105 actively-maintained communication servers as of 2026-09-18.
registry
io.github.synapbus/synapbus (active, first published 2026-03-17 · 17 versions)

05 · Synapbus FAQ

What is Synapbus?

Local-first, MCP-native agent-to-agent messaging service. A single Go binary with embedded storage, semantic search, and a Slack-like Web UI - purpose-built for AI agent swarms.

Is Synapbus still maintained?

Yes - as of 2026-09-18, its last commit was 2026-05-19. We re-verify nightly.

06 · Alternatives to Synapbus

Alternatives to Synapbus

Maintained communication servers if Synapbus isn't the fit.

  1. Draw Io Create diagrams in chat, rendered as live interactive draw.io diagrams. 10,000+ searchable shapes. ★ 5,462 · 2026-09-18
  2. Mockserver Mock, record/replay, verify and chaos-test any HTTP, REST, gRPC or LLM dependency over MCP. ★ 4,972 · 2026-09-17
  3. Vexa Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled. ★ 2,798 · 2026-09-17
  4. Agent Swarm Full Agent Swarm API and MCP server with local SQLite storage for multi-agent orchestration. ★ 806 · 2026-09-18
  5. Evolution API MCP server for Evolution API - WhatsApp messaging, instances, contacts ★ 271 · 2026-08-29
  6. Agenticmail MCP Server Real email and SMS for AI agents - send mail, receive verification codes, drive a real inbox. ★ 223 · 2026-09-13

Pairs well with

Servers that cover what Synapbus doesn't - only shown when the pairing reason fits the companion.

  1. Basic Memory → productivity companion productivity · ★ 3,986
  2. Praison AI → productivity companion productivity · ★ 9,069
  3. Emailmd → email companion email · ★ 1,373
  4. Email MCP → email companion email · ★ 111

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