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A11y MCP

visualstudio.comStatic analysis & linters

PulseGate's liveness check found it on 30 Sep 2026; it is registered on the VS Code Marketplace and has been in the index since 26 Aug 2026. How this is checked

A11y MCP is a VS Code extension that checks HTML, JSX, and TSX files against WCAG 2.2 AAA accessibility rules based on AccessMonitor. It reports findings in the Problems panel and exposes validation tools for GitHub Copilot through MCP, supporting developers building accessible web interfaces.

Inferred · not functionally tested

FreeWebWindowsmacOSLinux
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Overview

6 features

Purpose: Helps developers detect and fix WCAG accessibility issues in HTML, JSX, and TSX code during development.

Inferred · not functionally tested

Audience: web developers and accessibility engineers

Inferred · not functionally tested

Functions: data_extraction

Inferred · not functionally tested

Interfaces: API: unknown · MCP: indicated (inferred, not tested) · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: free · license: Proprietary · platforms: WEB · deployment: browser, windows, macos, linux

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: unknown.

In the Static analysis & linters space, A11y MCP takes a focused approach. Inferred · not functionally tested: It helps developers detect and fix WCAG accessibility issues in HTML, JSX, and TSX code during development. Inferred · not functionally tested: A11y MCP is a B2B product aimed at web developers and accessibility engineers. Basis unknown · not verified: It is available for free. Basis unknown · not verified: It runs on the web, Windows, macOS, and Linux.

Behind A11y MCP is Leticia Teixeira, and it first shipped in 2026. Inferred · not functionally tested: Key capabilities include WCAG validation, AAA rule checks, and HTML linting. Basis unknown · not verified: Catalogued interfaces include an MCP server.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • WCAG validation
  • AAA rule checks
  • HTML linting
  • JSX linting
  • TSX linting
  • Problems panel diagnostics

Topics: Inferred · not functionally tested

Tags
wcag-linteraccessmonitor-rulesjsx-accessibilitytsx-accessibilitycopilot-mcp

JSON profile · Text profile · Access guide

Built with & integrations

Connectors
MCPgithubvscode
Runs on
BrowserWindowsmacOSLinux

Trust & compliance

Public signals
HTTPSFree tierStore listing found

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed26 Aug · 11:27 UTC
    A11y MCP — Accessibility Validator seen via VS Code Marketplace
    Source: VS Code Marketplace · Open

Frequently asked questions about A11y MCP

What is A11y MCP?
Inferred · not functionally tested: A11y MCP helps developers detect and fix WCAG accessibility issues in HTML, JSX, and TSX code during development. It is catalogued under Static analysis & linters on PulseGate.
Who is A11y MCP for?
Inferred · not functionally tested: A11y MCP is a B2B product built for web developers and accessibility engineers.
Is A11y MCP free?
Basis unknown · not verified: Yes — A11y MCP is free to use.
What platforms does A11y MCP run on?
Basis unknown · not verified: A11y MCP runs on the web, Windows, macOS, and Linux.
Is A11y MCP still active?
PulseGate's liveness check found it on 30 Sep 2026.
Who develops A11y MCP?
A11y MCP is developed by Leticia Teixeira.
When did A11y MCP launch?
A11y MCP first shipped in 2026.
Does A11y MCP have an API or integrations?
Basis unknown · not verified: Yes — A11y MCP exposes an MCP server.

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