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Tools

Agent Readability Score
Structured Data Validator
llms.txt Checker
AGENTS.md Validator
MCP Card Validator
A2A Card Validator
agents.json Validator
Permissions Validator
UCP Validator
x402 Checker
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Developers

API & integrations
REST API reference
Methodology
MCP server
CLI
GitHub Action
Cursor plugin
Gemini extension

Specs

Vercel Agent Readability
llmstxt.org
Model Context Protocol
A2A Protocol
x402
NLWeb
All specs →

Guides

Complete guide to agent readability
Make your site AI-agent friendly
Glossary
What is NLWeb?
What is A2UI?
What is WebMCP?
What is MPP?
llms.txt vs sitemap.xml
MCP vs A2A vs agents.json
ACP vs UCP vs AP2 vs x402
AGENTS.md vs CLAUDE.md vs .cursorrules
Add llms.txt to Next.js
Publish an MCP server card
Write an effective AGENTS.md

Packages & skills

CLI on npm MCP on npm SDK on npm SDK on PyPI Skills on skills.sh GitHub

Apps

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agent-ready.dev — AI agent readability checker. Last updated 2026-06-09.

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