agent-synapse vs crewchat
agent-synapse is a plugin bundle for AI coding tools published by DisposableByDefault. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). crewchat is an MCP server published by deepankar17. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-13. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  agent-synapse |  crewchat |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.1.1 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.13.4 Downloads/month (PyPI): 0 Downloads/week (PyPI): 1 439 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
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.
The facts side by side
| Fact | agent-synapse | crewchat |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) | 0 | 0 |
| Forks (GitHub) | 0 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (crewchat) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 1 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/disposablebydefault/agent-synapse | github.com/deepankar17/crewchat |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
agent-synapse
Let multiple Claude Code sessions talk to each other across projects. Each session gets a name, sends messages, checks its inbox, and sees who's online.
crewchat
One group chat for your AI coding agents: Claude Code and Cursor talk to each other and to you.
How to run each
agent-synapse As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install agent-synapse@claude-communitycrewchat As a local MCP server: PyPI package
claude mcp add --transport stdio crewchat -- uvx crewchat stdioCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: agent-synapse · What it can do: crewchat · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. 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.