Mcp Servers
This is a collection of example MCP Servers for development.
Install
$ agentstack add mcp-jotsu-dev-mcp-servers ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/mcp-jotsu-dev-mcp-servers) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
mcp-servers
This is a collection of example MCP Servers for development. See the individual README files for details.
Servers
hello
Basic server with a single tool. Start here.
oauth2
MCP server with full OAuth2 support. Uses Discord as a pass-through auth server.
discord
MCP server that can send messages to an authorized Discord server. Uses a Discord Bot token for authorization.
us-weather
The NWS Weather MCP server from the modelcontextprotocol.io site adapted for deploying on Cloudflare.
NOTE: This server relies on the NWS API and may hit rate limits.
mailgun
Send emails using Mailgun.
Client
There is a simple command line client client.py that each of the examples use. The client is just a thin wrapper around mcp.streamable_client and jotsu-mcp with click commands. Other CLI clients don't seem to work well with streamable-http servers.
References
- https://github.com/invariantlabs-ai/mcp-streamable-http
Development
Each directory tries to be a stand-alone server.
Quickstart
cdinto the server directory
uv pip install '.[dev]'Source & license
This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: jotsu-dev
- Source: jotsu-dev/mcp-servers
- License: MIT
Install and usage instructions live in the source repository linked above.
Reviews
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Versions
- v0.1.0 Imported from the upstream source.