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Crash-test your AI agent on real professional decisions, graded against what actually happened.
Xzar is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 78/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding Xzar to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
mcp add si.xzar/xzar https://api.xzar.si/mcpReview the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-10-16T01:50:59.166319Z",
"publishedAt": "2026-10-16T01:50:59.166319Z",
"statusChangedAt": "2026-10-16T01:50:59.166319Z"
}
},
"server": {
"name": "si.xzar/xzar",
"title": "Xzar",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://api.xzar.si/mcp",
"type": "streamable-http"
}
],
"version": "0.1.2",
"packages": [
{
"version": "0.1.2",
"transport": {
"type": "stdio"
},
"identifier": "xzar-mcp",
"registryType": "pypi",
"registryBaseUrl": "https://pypi.org",
"environmentVariables": [
{
"name": "XZAR_API_KEY",
"isSecret": true,
"isRequired": true,
"description": "Your Xzar API key (https://xzar.si/signup.html)"
},
{
"name": "XZAR_API_URL",
"description": "Override the API base URL (default https://api.xzar.si); for local development only"
}
]
}
],
"repository": {
"url": "https://github.com/xzar-si/xzar-mcp",
"source": "github"
},
"websiteUrl": "https://xzar.si",
"description": "Crash-test your AI agent on real professional decisions, graded against what actually happened."
}
}