Alttext MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 18 installs a week from npm. Last commit 17 Sep 2026.
Generate alt text, translate descriptions, and manage your AltText.ai image library.
Today is the operative word: we check Alttext MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add alttext-mcp -- npx -y @alttext_ai/alttext-mcp
{
"mcpServers": {
"alttext-mcp": {
"args": [
"-y",
"@alttext_ai/alttext-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.alttext-mcp]
command = "npx"
args = ["-y", "@alttext_ai/alttext-mcp"]
{
"mcpServers": {
"alttext-mcp": {
"args": [
"-y",
"@alttext_ai/alttext-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"alttext-mcp": {
"args": [
"-y",
"@alttext_ai/alttext-mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
ALTTEXT_API_KEY (Your AltText.ai API key), ALTTEXT_API_BASE_URL (Optional API base URL override for proxies or alternate endpoints).
The author declared them in the registry entry; get the values from the project itself.
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Answers built from our own checks of this server.