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MCP Registry/ACR — Agent Composition Records
A

ACR — Agent Composition Records

Interaction profile registry for AI agents. Log interactions, query behavioral lenses.

Use with clientMarkdown

Install and compare this MCP server

Use this profile to copy client config, check auth requirements, review tools and resources, and compare related MCP servers before adding it to an AI client.

Install
npx -y @tethral/acr-mcp
Clients
Claude, Cursor, VS Code, Codex
Transport
STDIO
Auth
Not captured
Capabilities
0 tools, 0 resources, 0 prompts
Related
Website Auditor, blockrun-mcp, Bowmark

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InstallAuthTools & ResourcesOverview

Install

Connection

Transport
STDIO
Command
npx -y @tethral/acr-mcp
Environment
{ "ACR_API_URL": "YOUR_VALUE_HERE" }

Claude Desktop

Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.

{
  "mcpServers": {
    "io-github-tethralai-acr": {
      "command": "npx",
      "args": [
        "-y",
        "@tethral/acr-mcp"
      ],
      "env": {
        "ACR_API_URL": "YOUR_VALUE_HERE"
      }
    }
  }
}

Config location

macOS
~/Library/Application Support/Claude/claude_desktop_config.json
Windows
%APPDATA%\Claude\claude_desktop_config.json

Auth

Package transport

No remote HTTP endpoint is advertised. Use the package or stdio setup shown in Install.

Tools & Resources

Tools
0
Resources
0
Prompts
0
No public tools, resources, or prompts captured yet. Use Auth when this server requires credentials.

Tools

No tools captured yet.

Resources

No resources captured yet.

Prompts

No prompts captured yet.

Questions

What is ACR — Agent Composition Records?+

ACR — Agent Composition Records is an MCP server for Interaction profile registry for AI agents. Log interactions, query behavioral lenses.. It supports STDIO transport.

How do I install ACR — Agent Composition Records?+

Use the generated config in Install. This server runs with npx -y @tethral/acr-mcp; add any required environment variables before starting your client.

How do I add ACR — Agent Composition Records to Claude Desktop?+

Choose the Claude Desktop tab in Install and copy the config for npx -y @tethral/acr-mcp. Add required environment variables before starting Claude Desktop.

How do I add ACR — Agent Composition Records to Claude Code?+

Choose the Claude Code tab in Install and copy the config for npx -y @tethral/acr-mcp. Add required environment variables before starting Claude Code.

How do I use ACR — Agent Composition Records with Codex?+

Choose the Codex tab in Install and copy the config for npx -y @tethral/acr-mcp. Add required environment variables before starting Codex.

How do I add ACR — Agent Composition Records to Cursor or VS Code?+

Choose the Cursor or VS Code tab in Install and copy the config for npx -y @tethral/acr-mcp. Add required environment variables before starting Cursor or VS Code.

What endpoint and transport does ACR — Agent Composition Records use?+

ACR — Agent Composition Records uses STDIO transport. Use the package or command config in Install.

What tools and resources does ACR — Agent Composition Records expose?+

ACR — Agent Composition Records inventory is listed when the MCP endpoint exposes tools, resources, or prompts. Some servers require auth first.

Does ACR — Agent Composition Records require authentication?+

ACR — Agent Composition Records does not advertise a verified auth requirement. If discovery fails, it may still need provider login, an API key, a bearer token, or a session header.

Related MCPs

Website AuditorAI visibility + site audits: see if ChatGPT, Perplexity, Claude & Gemini recommend a website.blockrun-mcpWeb search, deep research, prediction markets & crypto data for AI agents. Pay per call via x402.BowmarkDo things on live websites: prices, availability, quotes, bookings, anything behind a form or login.mcpProfile, CV, jobs, compensation & application-tracking tools for AI agents, by aicandidatehub.com.mcpProfile, CV, jobs, compensation & application-tracking tools for AI agents, by rolnia.com.ZiggsZiggs delegate MCP: chat, agreements, context, payments via OAuth or operator key.

Profile notes

  • Package: Npm @tethral/acr-mcp v2.1.1
  • Environment variable: ACR_API_URL

Packages

PackageRegistryVersionInputs
@tethral/acr-mcp

stdio

npm2.1.1

Env: ACR_API_URL

Details

Version
2.1.1
Repository
https://github.com/Tethral-Inc/AgentRegistry
Website
https://acr.nfkey.ai
Updated
Apr 14, 2026