Monitor MCP servers, API contracts, and AI output schemas — from inside Claude Code, Cursor, or any MCP client.
Your MCP servers, APIs, and AI outputs can break while still returning 200. Fixzi watches the contracts your integrations depend on, classifies every change (breaking / warning / info), and alerts you before your users hit it. This MCP server lets your AI tools query and operate those monitors directly.
claude mcp add --transport http fixzi https://fixzi.ai/api/mcp \
--header "Authorization: Bearer YOUR_FIXZI_API_TOKEN"Or add to your project's .mcp.json:
{
"mcpServers": {
"fixzi": {
"type": "http",
"url": "https://fixzi.ai/api/mcp",
"headers": {
"Authorization": "Bearer YOUR_FIXZI_API_TOKEN"
}
}
}
}Add to claude_desktop_config.json:
{
"mcpServers": {
"fixzi": {
"type": "streamable-http",
"url": "https://fixzi.ai/api/mcp",
"headers": {
"Authorization": "Bearer YOUR_FIXZI_API_TOKEN"
}
}
}
}Get your API token at https://fixzi.ai/settings/api-tokens. When creating the token, grant the abilities for the tools you want to use (see below).
Related MCP server: schema-lint-mcp
Tool | What it does | Ability required |
| List all your monitors (MCP / API contract / AI validator) with health status | — |
| Current status, last check result, consecutive failures for one monitor | — |
| Change log for a monitor: severity, what changed, before/after (filter by date/severity) | — |
| Current tool list of a monitored MCP server (names, descriptions, schemas) | — |
| Trigger a check immediately (async — poll status after) |
|
| Create a new MCP server monitor from a URL |
|
Tool | What it does | Ability required |
| List your AI output validators |
|
| Details of a specific validator |
|
| Run a validation check right now |
|
| Recent check history |
|
Once connected, ask your agent things like:
"Check if my MCP server changed this week" — chains fixzi_list_monitors → fixzi_get_recent_changes
"Is my payments API contract still healthy?"
"Set up a monitor for the MCP server I just deployed at https://example.com/mcp"
"Run my product-description validator and tell me if the schema still passes"
MCP server access requires the Pro+ plan — see https://fixzi.ai/pricing
Fixzi's web app includes a free tier (1 monitor of each type, daily checks, email alerts) and free tools, including a no-signup MCP Server Checker to test any MCP server instantly.
This server cannot be deployed
Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.
API monitoring from your editor. Checks the JSON your endpoints return, not just the status code.
Synthetic checks, nightly regression replay and model-drift alerts for AI agents
Know when your n8n workflows, URLs, and AI apps break, before your customers do.
