com.agent-preflight/agent-preflight

up checked 2026-11-11T08:38:08.320Z

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Publisher-provided title

Agent Preflight

Publisher-provided description

Budgeted agent preflight: allow|block|reuse|defer|advise. Never executes destination tools. Free MCP

Summary by lookupd

Validates HTTP API request bodies against JSON Schema and gives allow/block decisions on search or fetch calls without running them.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http agent-preflight https://api.agent-preflight.com/mcp

Codex, remote (streamable-http)

codex mcp add agent-preflight --url https://api.agent-preflight.com/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "agent-preflight": {
      "url": "https://api.agent-preflight.com/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (2 tools)

Publisher-provided text

• check_request Validate an HTTP API request body against a supplied JSON Schema before sending it. This tool does not execute the request. Use it when an agent needs to determ
• preflight_tool_call Free MCP decision for generic search:web_search or browse:fetch proposals only. Returns structuredContent and JSON text, never destination results. Caller suppl

Details

• Version: 0.2.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 450 ms
• First indexed: 2026-11-01T08:52:42.595Z
• Last seen in registry: 2026-11-01T08:52:42.595Z
• Website: https://agent-preflight.com

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• Last crawl: 2026-11-11T16:39:06.253Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp