Run Python
https://next.hal9.ai/mcp/mcpbuild/run-python ↗
Description
Run Python code from natural language prompts, with optional PyPI package install.
What our measurements say
Run Python is a remote MCP server published at next.hal9.ai. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 516 ms, a delay an agent will notice. It offers a narrow, focused set of 1 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Parameters are named clearly with required/optional status defined
Weaknesses
- Tool name 'chat' does not reflect Python execution purpose
- Description lacks explicit usage scenarios
- No error handling or constraints documented
- chat_id parameter purpose is unclear
chat— Name does not indicate Python execution functionalitychat— chat_id parameter lacks contextual explanation
Verdict
Event narrative
Risk: low
Advice
Raw observations
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 123ms → warm 131ms (penalty 0ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
chatRun Python code from natural language prompts, with optional PyPI package install
messagestringrequiredchat_idstring
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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Add this badge to your README — it updates automatically as measurements change.
[](https://mcpmetrics.io/servers/io-github-hal9ai-run-python)<a href="https://mcpmetrics.io/servers/io-github-hal9ai-run-python"><img src="https://mcpmetrics.io/badge/io.github.hal9ai/run-python/era.svg" alt="mcpmetrics"></a>You are seeing the last 7 days. Sign up for the full history. Which check failed and why is in the dashboard.
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