WCAG 2.1 AA accessibility scanner for Claude Code: Playwright + axe-core, grounded fixes, browser-verified (MIT client; hosted insights API is proprietary)
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add aether-wcag-scanner --env ALLCHEMY_API_KEY='<ALLCHEMY_API_KEY>' -- npx -y @allchemylabs/aether-wcag-scanner~/.codex/config.toml
[mcp_servers.aether-wcag-scanner]
command = "npx"
args = ["-y", "@allchemylabs/aether-wcag-scanner"]
env = { ALLCHEMY_API_KEY = "<ALLCHEMY_API_KEY>" }
# codex mcp add aether-wcag-scanner --env ALLCHEMY_API_KEY='<ALLCHEMY_API_KEY>' -- npx -y @allchemylabs/aether-wcag-scanner~/.cursor/mcp.json
{
"mcpServers": {
"aether-wcag-scanner": {
"command": "npx",
"args": [
"-y",
"@allchemylabs/aether-wcag-scanner"
],
"env": {
"ALLCHEMY_API_KEY": "<ALLCHEMY_API_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"aether-wcag-scanner": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@allchemylabs/aether-wcag-scanner"
],
"env": {
"ALLCHEMY_API_KEY": "<ALLCHEMY_API_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"aether-wcag-scanner": {
"command": "npx",
"args": [
"-y",
"@allchemylabs/aether-wcag-scanner"
],
"env": {
"ALLCHEMY_API_KEY": "<ALLCHEMY_API_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"aether-wcag-scanner": {
"command": "npx",
"args": [
"-y",
"@allchemylabs/aether-wcag-scanner"
],
"env": {
"ALLCHEMY_API_KEY": "<ALLCHEMY_API_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"aether-wcag-scanner": {
"command": "npx",
"args": [
"-y",
"@allchemylabs/aether-wcag-scanner"
],
"env": {
"ALLCHEMY_API_KEY": "<ALLCHEMY_API_KEY>"
}
}
}
}Environment variables
ALLCHEMY_API_KEY
Replace the placeholders with your own credentials and keep them out of version control.