Promptarch MCP Server

by promptarch Your server? Claim it

answering

Promptarch is answering right now. Last checked 12 min ago. It exposes 3 tools.

Research-backed linting + generation for agent context files (CLAUDE.md, AGENTS.md, Cursor rules).

Uptime history 47 days of history · worst day 99%

47 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

897 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Promptarch every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp --transport http https://mcp.promptarch.ai/mcp

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

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.promptarch.ai/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp]
url = "https://mcp.promptarch.ai/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.promptarch.ai/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.promptarch.ai/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

promptarch

promptarch_generate_artifact

Generate an AI agent context artifact (e.g. context_pack, claude_md) from a project description. Requires a PromptArch API key configured as an Authorization: Bearer pk_... header on this MCP server. Consumes credits.

promptarch_lint_artifact

Lint an AI agent context file (CLAUDE.md, AGENTS.md, Cursor rules, Copilot instructions, memory files) with PromptArch's deterministic linter: ~30 research-backed rule families covering current-model anti-patterns (tool-forcing, reasoning-echo, sycophancy triggers, contradictions), per-tool size budgets, secrets/dangerous commands, and hidden-Unicode injection ("Rules File Backdoor"). Returns grade, 0-100 score, and line-anchored findings. Free: no account or credits needed.

promptarch_list_artifact_types

List the artifact types promptarch_generate_artifact can produce from a project description.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.promptarch.ai/mcp	streamable-http	answering	983 ms	12 min ago

Alternatives to Promptarch

same job, measured the same way

Constitution Lint

by agentopskit-www

Static linter for CLAUDE.md-style agent constitution files: 10 operational-guardrail checks.

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Constitution Lint

by agentopskit

Static linter for CLAUDE.md-style agent constitution files: 10 operational-guardrail checks.

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ctxlint

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Lint AI agent context files (CLAUDE.md, AGENTS.md, etc.) against your actual codebase

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AI Context Kit

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Lint, measure, and sync AI context files across Cursor, Claude Code, Copilot.

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Context Autopilot

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Mines your Claude Code and Cursor sessions into evidence-based CLAUDE.md / AGENTS.md rules.

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Tradesearcher

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Search TradeSearcher strategies and backtests from Claude Code, Cursor, Codex, and other agents.

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Thinkrun

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Browser control + session recording MCP for AI coding agents (Claude Code, Cursor) — real Chrome.

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Gency MCP

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Promptarch — questions

Answers built from our own checks of this server.

What can Promptarch do?

It exposes 3 tools, read directly from the server on our last check. Among them: promptarch_generate_artifact, promptarch_lint_artifact, promptarch_list_artifact_types. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Promptarch working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 897 ms. The bar chart above shows every period we have measured.

How do I connect Promptarch?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Promptarch need an API key?

No. Promptarch completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Promptarch?

It answers our handshake in 897 ms on average, which is faster than 11% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.