Arclan MCP Registry

Search the Arclan registry for MCP servers. By default returns only connectable servers (active, mcp_partial, auth_gated). Use status=stdio to browse local-only servers available for installation. Use status=all to query the full index. Use production_safe=true to restrict to servers with uptime > 97% and handshake success > 95%. Use read_only=true to restrict to servers with no write or exec tools. Use this before connecting to an MCP server to check its validation status and score. After using a server, call report_server to contribute reliability data.

{
  "type": "object",
  "properties": {
    "capability": {
      "type": "string",
      "description": "Filter by tool name or keyword (searches name, description, tools)"
    },
    "min_score": {
      "type": "number",
      "description": "Minimum validation score 0–100 (default 0)"
    },
    "transport": {
      "type": "string",
      "enum": [
        "http",
        "sse",
        "stdio",
        "unknown"
      ],
      "description": "Filter by transport type"
    },
    "status": {
      "type": "string",
      "enum": [
        "active",
        "mcp_partial",
        "auth_gated",
        "stdio",
        "unreachable",
        "invalid",
        "zombie",
        "all"
      ],
      "description": "Filter by state. Default (omit): connectable states only (active + mcp_partial + auth_gated). Use \"stdio\" for local-install catalog. Use \"all\" for the full index."
    },
    "production_safe": {
      "type": "boolean",
      "description": "Only return servers with uptime_7d > 97% and handshake_success_rate > 95%. Use when reliability matters."
    },
    "read_only": {
      "type": "boolean",
      "description": "Only return servers with no write or exec tools — safe for read-only agent workflows."
    },
    "limit": {
      "type": "number",
      "description": "Max results to return 1–20 (default 10)"
    }
  }
}

Get full details for a specific MCP server. Pass the server name (e.g. "GitHub", "Brave Search"), registry ID slug, or endpoint URL. Returns score, state, tools list, latency, and recent test history.

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "The MCP server endpoint URL (e.g. \"https://mcp.example.com/mcp\")"
    },
    "id": {
      "type": "string",
      "description": "Server name, registry ID slug, or any identifier (e.g. \"github\", \"brave-search\", \"gateway-pipeworx-io-rpc-mcp\")"
    }
  }
}

Get ranked MCP server recommendations for a task. Returns servers scored by production safety, keyword relevance, registry score, latency, and freshness. Each result includes a reason code array explaining why it was ranked. Use this instead of query_registry when you want an opinionated ranked list rather than a filtered search.

{
  "type": "object",
  "properties": {
    "q": {
      "type": "string",
      "description": "Task or capability query — e.g. \"search the web\" or \"read files\""
    },
    "auth": {
      "type": "boolean",
      "description": "Include servers that require authentication (default: true)"
    },
    "production_safe": {
      "type": "boolean",
      "description": "Only return production-safe servers (uptime > 97%, handshake > 95%)"
    },
    "read_only": {
      "type": "boolean",
      "description": "Only return servers with no write-classified tools"
    },
    "limit": {
      "type": "number",
      "description": "Max results 1–20 (default: 5)"
    }
  }
}

Submit an agent usage report for an MCP server. Reports are aggregated and influence registry trust scores. Call this after using an MCP server so the registry can track real-world reliability. Supports both a simple outcome report and a structured scoring report (criterion + component_score).

{
  "type": "object",
  "required": [
    "serverUrl",
    "outcome"
  ],
  "properties": {
    "serverUrl": {
      "type": "string",
      "description": "The MCP server endpoint URL that was used"
    },
    "outcome": {
      "type": "string",
      "enum": [
        "success",
        "failure",
        "partial"
      ],
      "description": "Result of using the server"
    },
    "agentId": {
      "type": "string",
      "description": "Identifier for the reporting agent (optional)"
    },
    "toolsUsed": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "List of tool names that were called"
    },
    "turnsRequired": {
      "type": "number",
      "description": "Number of turns to complete the task"
    },
    "latencyMs": {
      "type": "number",
      "description": "Total wall-clock latency in milliseconds"
    },
    "taskCategory": {
      "type": "string",
      "description": "Category of task attempted (e.g. \"search\", \"write\", \"read\")"
    },
    "taskDescription": {
      "type": "string",
      "description": "Brief description of what the task was"
    },
    "errors": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Array of error strings encountered during tool use"
    },
    "criterion": {
      "type": "string",
      "enum": [
        "output_reliability",
        "side_effect_transparency",
        "failure_handling",
        "rate_limits",
        "agent_feedback"
      ],
      "description": "Specific reliability criterion being scored (enables structured component scoring)"
    },
    "componentScore": {
      "type": "number",
      "description": "Score 0–100 for the specified criterion"
    },
    "severity": {
      "type": "string",
      "enum": [
        "info",
        "warning",
        "error",
        "critical"
      ],
      "description": "Severity of the worst issue encountered"
    },
    "environment": {
      "type": "string",
      "enum": [
        "prod",
        "staging",
        "dev",
        "unknown"
      ],
      "description": "Environment the server was used in"
    },
    "evidenceRef": {
      "type": "string",
      "description": "Trace ID, log URL, or other reference supporting this report"
    }
  }
}