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Fixzi — MCP & API Schema Drift Monitor

Official registry AI and agents

Monitor MCP servers, API contracts and AI outputs for schema drift. Alerts on breaking changes.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http fixzi-mcp-api-schema-drift-monitor 'https://fixzi.ai/api/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "fixzi-mcp-api-schema-drift-monitor": {
            "type": "http",
            "url": "https://fixzi.ai/api/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Fixzi MCP Server
  2. Connect
  3. Tools
  4. Example prompts
  5. Requirements
  6. Learn more

Fixzi MCP Server

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.

Connect

Claude Code
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"
      }
    }
  }
}
Claude Desktop

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).

Tools

Monitoring (MCP servers, API contracts, AI validators)
ToolWhat it doesAbility required
fixzi_list_monitorsList all your monitors (MCP / API contract / AI validator) with health status—
fixzi_get_monitor_statusCurrent status, last check result, consecutive failures for one monitor—
fixzi_get_recent_changesChange log for a monitor: severity, what changed, before/after (filter by date/severity)—
fixzi_get_current_snapshotCurrent tool list of a monitored MCP server (names, descriptions, schemas)—
fixzi_run_check_nowTrigger a check immediately (async — poll status after)monitors:write
fixzi_create_mcp_monitorCreate a new MCP server monitor from a URLmonitors:write
AI output validation
ToolWhat it doesAbility required
fixzi_list_validatorsList your AI output validatorsvalidators:read
fixzi_get_validatorDetails of a specific validatorvalidators:read
fixzi_run_checkRun a validation check right nowvalidators:check
fixzi_list_checksRecent check historyvalidators:read

Example prompts

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"

Requirements

  • 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.

Learn more

Frequently asked questions

What is Fixzi — MCP & API Schema Drift Monitor?

Monitor MCP servers, API contracts and AI outputs for schema drift. Alerts on breaking changes.

How do I install Fixzi — MCP & API Schema Drift Monitor?

It runs as a remote server. In Claude Code: claude mcp add --transport http fixzi-mcp-api-schema-drift-monitor 'https://fixzi.ai/api/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Fixzi — MCP & API Schema Drift Monitor need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Fixzi — MCP & API Schema Drift Monitor open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Fixzi — MCP & API Schema Drift Monitor?

It is published by rohitcodilya. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.