Promptarch MCP Server

by promptarch Your server? Claim it

answering

Promptarch is answering right now. Last checked 8 min ago. It exposes 4 tools.

Research-backed lint + generation for agent context files (CLAUDE.md, AGENTS.md) + prompt enhancer.

Uptime history 91 days of history · worst day 96%

91 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

922 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 5

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 4 October 2026. No other catalogue keeps this.

16 Oct a tool appeared promptarch_enhance_prompt

16 Oct a tool changed version

4 Oct a tool description was rewritten promptarch_lint_artifact

4 Oct a tool changed the parameters it asks for promptarch_lint_artifact

4 Oct a tool changed version

Promptarch missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 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

Settings → Connectors → Add custom connector, then paste this address

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

{
  "servers": {
    "mcp": {
      "type": "http",
      "url": "https://mcp.promptarch.ai/mcp"
    }
  }
}

Available tools 4

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

promptarch

promptarch_enhance_prompt

Enhance a raw prompt with PromptArch's Prompt Enhancer: PromptArch asks 1-3 targeted clarifying questions, then rewrites the prompt from the person's answers, optimized for target_model. If this client supports MCP elicitation, the questions appear to the person as a form inside this call. Otherwise call once with just `prompt` to get the questions (free), ask the person, and call again with `questions` and `answers`. Never answer the questions yourself. The enhancement costs 5 credits; questions are free. Requires a PromptArch API key configured as an Authorization: Bearer pk_... header on this MCP server.

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, .claude/rules/ files, 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	746 ms	8 min ago

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Promptarch — questions

Answers built from our own checks of this server.

What can Promptarch do?

It exposes 4 tools, read directly from the server on our last check. Among them: promptarch_enhance_prompt, 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 922 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 in the form 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 4 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 922 ms on average, which is faster than 8% 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.