Official MCP servers
Run Python code from natural language prompts, with optional PyPI package install.
- Address
- https://next.hal9.ai/mcp/mcpbuild/run-python
- Runs
- Hosted
- Sign-in
- Vendor docs
- Official MCP Registry
-
Listed as
io.github.hal9ai/run-python· published 8 Sep 2026 - Source code
- github.com/hal9ai/mcp.build
- How we found it
- Official MCP Registry, published under the vendor's name
- Last checked
- Reachable ·
Opens the app if it's installed. If nothing happens, use the JSON below.
Claude: Customize → Connectors → + → Add custom connector, then paste the address. ChatGPT: Settings → Apps → Advanced settings → turn on Developer mode → Create, then paste the address. ChatGPT usually only connects to servers with self-serve sign-in or none.
Send emails from natural language prompts.
- Address
- https://next.hal9.ai/mcp/mcpbuild/send-email
- Runs
- Hosted
- Sign-in
- Vendor docs
- Official MCP Registry
-
Listed as
io.github.hal9ai/send-email· published 1 Sep 2026 - Source code
- github.com/hal9ai/mcp.build
- How we found it
- Official MCP Registry, published under the vendor's name
- Last checked
- Reachable ·
Opens the app if it's installed. If nothing happens, use the JSON below.
Claude: Customize → Connectors → + → Add custom connector, then paste the address. ChatGPT: Settings → Apps → Advanced settings → turn on Developer mode → Create, then paste the address. ChatGPT usually only connects to servers with self-serve sign-in or none.
Something wrong or out of date? Tell us and we'll check it against the evidence.