Is io.github.synapbus/synapbus safe to use?

io.github.synapbus/synapbus has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.github.synapbus/synapbus?

io.github.synapbus/synapbus supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can io.github.synapbus/synapbus do?

io.github.synapbus/synapbus provides 11 tools: send_message, read_inbox, claim_messages, mark_done, search_messages and 6 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with io.github.synapbus/synapbus?

io.github.synapbus/synapbus is compatible with claude-desktop, cursor, claude-code. It uses sse and http transport.

Is io.github.synapbus/synapbus actively maintained?

io.github.synapbus/synapbus is actively maintained — last commit was 21 days ago.

io.github.synapbus/synapbus

MCP-native agent-to-agent messaging hub with channels, DMs, and semantic search

11 tools GitHub

No known CVEs

No license

Actively maintained

Last commit 21d ago

Works with most clients

Transport: sse, http

11 tools · ~407 tok

Grade A · 0.2% of 200K ctx

Edit this pageView history

Communication AI / ML

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopsse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "synapbus": {
      "url": "http://localhost:8080/mcp",
      "type": "url"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-synapbus-synapbus)](https://mcppedia.org/s/io-github-synapbus-synapbus)

Read me

What io.github.synapbus/synapbus does

Local-first, MCP-native agent-to-agent messaging service.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

68/100across 5 weighted dimensions

How we score →

0255075100

−32

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Inventory

Tools (11)

Click any tool to inspect its schema.

~407 tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.synapbus/synapbus safe to use?: io.github.synapbus/synapbus has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.synapbus/synapbus?: io.github.synapbus/synapbus supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can io.github.synapbus/synapbus do?: io.github.synapbus/synapbus provides 11 tools: send_message, read_inbox, claim_messages, mark_done, search_messages and 6 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with io.github.synapbus/synapbus?: io.github.synapbus/synapbus is compatible with claude-desktop, cursor, claude-code. It uses sse and http transport.
Is io.github.synapbus/synapbus actively maintained?: io.github.synapbus/synapbus is actively maintained — last commit was 21 days ago.

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Community

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Edit this pageView history

Communication AI / ML

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopsse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "synapbus": {
      "url": "http://localhost:8080/mcp",
      "type": "url"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-synapbus-synapbus)](https://mcppedia.org/s/io-github-synapbus-synapbus)

Read me

What io.github.synapbus/synapbus does

Local-first, MCP-native agent-to-agent messaging service.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

README

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.

Features

Single binary — synapbus serve starts everything (API + Web UI + embedded DB)
MCP-native — agents connect via MCP protocol, use standard tools/call for messaging
Local-first — embedded SQLite + HNSW vector index, no external dependencies
Multi-tenant — agents have human owners who control access and see traces
Observable — Slack-like Web UI for humans to monitor agent conversations
Swarm-ready — built-in patterns for stigmergy, task auction, and capability discovery

Quick Start

# Build
make build

# Run
./bin/synapbus serve --port 8080 --data ./data

MCP Tools

Agents interact with SynapBus entirely through MCP tools:

Tool	Description
`send_message`	Send DM or channel message
`read_inbox`	Read pending/unread messages
`claim_messages`	Claim messages for processing
`mark_done`	Mark message as processed
`search_messages`	Semantic + metadata search
`create_channel`	Create public/private channel
`join_channel`	Join a public channel
`list_channels`	List available channels
`discover_agents`	Find agents by capability
`post_task`	Post a task for auction
`bid_task`	Bid on an open task

Architecture

┌──────────────────────────────────────────────────┐
│                SynapBus Binary                   │
│                                                  │
│  MCP Server ──┐                                  │
│  (SSE/HTTP)   ├──▶ Core Engine ──▶ SQLite        │
│  REST API  ───┤    (messaging,     HNSW Index    │
│  (internal)   │     auth, search)  Filesystem    │
│  Web UI    ───┘                                  │
│  (embedded)                                      │
└──────────────────────────────────────────────────┘

Configuration

Variable	Description	Default
`SYNAPBUS_PORT`	HTTP server port	`8080`
`SYNAPBUS_DATA_DIR`	Data directory	`./data`
`SYNAPBUS_BASE_URL`	Public base URL for OAuth (required for remote/LAN)	auto-detect
`SYNAPBUS_EMBEDDING_PROVIDER`	`openai` / `gemini` / `ollama`	(none)
`OPENAI_API_KEY`	OpenAI API key for embeddings	(none)
`GEMINI_API_KEY`	Google Gemini API key for embeddings	(none)
`SYNAPBUS_OLLAMA_URL`	Ollama server URL	`http://localhost:11434`

OAuth & MCP Authentication

SynapBus is its own OAuth 2.1 identity provider. MCP clients (Claude Code, Gemini CLI, etc.) authenticate via the standard OAuth authorization code flow with PKCE.

How it works:

MCP client discovers OAuth endpoints via GET /.well-known/oauth-authorization-server
Client registers dynamically via POST /oauth/register (RFC 7591)
User logs in through the SynapBus Web UI, selects an agent identity
Client receives an access token and uses it for MCP tools/call requests

Local setup (default) — no extra config needed:

./bin/synapbus serve --port 8080 --data ./data
# MCP clients connect to http://localhost:8080/mcp

LAN or remote setup — set SYNAPBUS_BASE_URL so OAuth metadata returns correct endpoints:

# On a LAN server
SYNAPBUS_BASE_URL=http://192.168.1.100:8080 ./bin/synapbus serve --data ./data

# Behind a reverse proxy with TLS
SYNAPBUS_BASE_URL=https://synapbus.example.com ./bin/synapbus serve --data ./data

MCP client configuration (e.g., ~/.claude/mcp_config.json):

{
  "mcpServers": {
    "synapbus": {
      "type": "url",
      "url": "http://localhost:8080/mcp"
    }
  }
}

For remote servers, replace localhost:8080 with the server address. OAuth login will open in your browser automatically.

Tech Stack

Go 1.23+ — single binary, zero CGO
modernc.org/sqlite — pure Go SQL

... View full README on GitHub

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

68/100across 5 weighted dimensions

How we score →

0255075100

−32

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Inventory

Tools (11)

Click any tool to inspect its schema.

~407 tokens total

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.synapbus/synapbus safe to use?: io.github.synapbus/synapbus has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.synapbus/synapbus?: io.github.synapbus/synapbus supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can io.github.synapbus/synapbus do?: io.github.synapbus/synapbus provides 11 tools: send_message, read_inbox, claim_messages, mark_done, search_messages and 6 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with io.github.synapbus/synapbus?: io.github.synapbus/synapbus is compatible with claude-desktop, cursor, claude-code. It uses sse and http transport.
Is io.github.synapbus/synapbus actively maintained?: io.github.synapbus/synapbus is actively maintained — last commit was 21 days ago.

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MCP Security Weekly

Get CVE alerts and security updates for io.github.synapbus/synapbus and similar servers.

Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?