Agent Preflight is a remote MCP server that gives an AI agent 2 tools, among them check_request, preflight_tool_call. It answers at https://api.agent-preflight.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 4 of 4 times since 23 September 2026; the last check, on 6 November 2026, succeeded.
Budgeted agent preflight: allow|block|reuse|defer|advise. Never executes destination tools. Free MCP
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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 determine whether a proposed JSON body satisfies its expected schema. Optional economi Inputs: request, schema, economics |
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 supplies cost estimates, post-consultation budget and history, executes tools and ret Inputs: runId, stepId, tool, budget, task, history |
Every block below points at https://api.agent-preflight.com/mcp. Pick your client and copy.
claude mcp add --transport http agent-preflight https://api.agent-preflight.com/mcp
{
"mcpServers": {
"agent-preflight": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://api.agent-preflight.com/mcp"]
}
}
}{
"mcpServers": {
"agent-preflight": {
"url": "https://api.agent-preflight.com/mcp"
}
}
}{
"servers": {
"agent-preflight": {
"type": "http",
"url": "https://api.agent-preflight.com/mcp"
}
}
}{
"context_servers": {
"agent-preflight": {
"url": "https://api.agent-preflight.com/mcp"
}
}
}{
"mcpServers": {
"agent-preflight": {
"serverUrl": "https://api.agent-preflight.com/mcp"
}
}
}{
"mcpServers": {
"agent-preflight": {
"url": "https://api.agent-preflight.com/mcp"
}
}
}name: Agent Preflight
version: 0.0.1
schema: v1
mcpServers:
- name: Agent Preflight
type: streamable-http
url: https://api.agent-preflight.com/mcp{
"mcpServers": {
"agent-preflight": {
"httpUrl": "https://api.agent-preflight.com/mcp"
}
}
}{
"mcpServers": {
"agent-preflight": {
"type": "http",
"url": "https://api.agent-preflight.com/mcp"
}
}
}{
"mcpServers": {
"agent-preflight": {
"url": "https://api.agent-preflight.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fapi.agent-preflight.com%2Fmcp&type=streamable_http&id=agent-preflight&name=Agent%20Preflight
It answered our last check on 6 November 2026 in 277 ms. Over 4 checks since 23 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by agent-preflight.com and served from api.agent-preflight.com, the vendor's own domain: https://api.agent-preflight.com/mcp.
2, as returned by the server's own tools/list on 12 November 2026: check_request, preflight_tool_call.
It answered our last check on 6 November 2026 in 277 ms. Over 4 checks since 23 September 2026 it answered 4.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://api.agent-preflight.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.agent-preflight. Endpoint host: api.agent-preflight.com. ARD identifier: urn:air:com.agent-preflight:mcp:agent-preflight.
First indexed 20 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.