What is WebMCP?

WebMCP, A2A, and MCP are the protocols that let AI agents interact with your website, not just read it. We audit exactly how ready you are.

What we audit

Checks covering the agent protocol layer: the interfaces AI agents use to discover, understand, and interact with your website's functionality.

WebMCP declarative API

HTML form attributes that expose your site's actions as tool definitions for AI agents. The easiest way to make your website agent-interactive without building an API.

A2A agent card

Google's Agent-to-Agent protocol. A JSON file at /.well-known/agent.json that describes your site's agent capabilities, skills, and supported interaction modes.

MCP discovery

Model Context Protocol server discovery via /.well-known/mcp.json. Lets AI agents like Claude find and connect to your MCP endpoint for tool-use interactions.

OpenAPI spec

An OpenAPI/Swagger specification that documents your API endpoints. AI agents use this to understand available operations, parameters, and response schemas.

agents.json

A directory file listing all agents and protocols your site supports. Helps AI systems discover which interaction methods are available in one lookup.

Form quality

How well your HTML forms are structured for agent interaction: labels, field types, autocomplete attributes, and accessibility that lets agents fill forms correctly.

Interactive surface coverage

What percentage of your site's interactive elements (forms, buttons, actions) are exposed as agent-callable tools via WebMCP or similar protocols.

Why agent protocols matter

AI agents are evolving from reading websites to interacting with them. These protocols are the bridge.

EVIDENCE STATUS

EXP.

WebMCP observations are experimental and do not affect the stable score

PURPOSE PROFILES

The primary interpretation layer for applicable stable signals

METHODOLOGY

Weights and grade bands are explicit versioned policy choices

SCORE EFFECT

Experimental WebMCP and browser outcomes add no headline points

Want the complete picture?

WebMCP Audit focuses on agent protocols. For the full 5-category AI readiness audit covering discovery, structured data, semantics, protocols, and security, visit IsAgentReady.

Full AI Readiness Audit

Frequently asked questions

Common questions about WebMCP, agent protocols, and how we audit them.

WebMCP (Web Model Context Protocol) is a standard that lets websites expose their functionality as tools that AI agents can call. Using HTML form attributes or document.modelContext.registerTool(), you declare what actions your site supports, such as searching, booking, or submitting forms, so agents can interact with your site programmatically.

A2A is Google's Agent-to-Agent protocol. An Agent Card at /.well-known/agent.json describes your site's capabilities, supported interaction modes, and skills in a machine-readable format. It lets AI agents discover what your site can do before attempting to interact with it.

MCP (Model Context Protocol) Discovery via /.well-known/mcp.json lets AI agents find your MCP server endpoint. MCP is Anthropic's protocol for tool-use interactions: agents connect to your MCP server to call tools, access resources, and complete tasks on behalf of users.

WebMCP, A2A, and MCP Discovery are emerging protocols with changing implementations and adoption. IsAgentReady reports their observed evidence and maturity without claiming a universal adoption rate or predicting a competitive outcome.

The audit reports measured stable-core coverage for applicable, supported protocol and security checks. Current WebMCP forms, JavaScript tools, form quality, and interactive coverage are shown separately as experimental evidence and do not affect the stable score.

WebMCP Audit focuses on the browser tools and machine interfaces agents use to interact with your site. IsAgentReady adds the full discovery, AI search, semantics, protocol, and security assessment across 70 registered checks.

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Measure protocol evidence and see which applicable checks need attention.

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Rankings

See how websites rank on agent protocol readiness.