6 #preflight MCP Servers & Clients
Every MCP server and client below is tagged #preflight — install one to give Claude, Cursor, VS Code, or any other MCP-compatible client access to preflight tools.
All
Audrey
Evilander
Persistent memory and continuity engine for Claude Code and AI agents.
Sgraal Memory Governance
sgraal-ai
Deterministic pre-action verdict gate for agent memory — USE/WARN/ASK/BLOCK before an agent acts on a stored memory. Governs your existing store, doesn't replace it.
Check
golproductions
Anti-hallucination firewall for AI coding agents. Validates commands before execution, imports against your package.json, function calls against your source files. Sub-100ms. $0.0068 AUD per check, 120 free on sign-up.
Sgraal Memory Governance
sgraal-ai
Preflight validation before every AI agent action. Block hallucinations, stop drift, prove what's safe to act on. F1=1.000 across 239 corpus cases.
Coderifts Api Governance
coderifts
PR-native API governance for AI agents. Detects breaking API changes at merge time, scores blast radius, and blocks unsafe agent tool calls before production. Preflight check, risk scoring, Decision Spec v1.0.
AgentBill MCP
marketinglior-pixel
Preflight spend control for AI agents. Block runaway agent loops before they start - not after the bill arrives. Per-request cost ceilings, budget checks, and outcome-based metering in 2 MCP tool calls.
Frequently asked questions
What is a #preflight MCP server?
- An MCP server tagged #preflight implements the Model Context Protocol so AI assistants like Claude, Cursor, and VS Code can access preflight-related tools, data, or APIs.
How many #preflight MCP servers and clients are there?
- mcp.so currently lists 6 MCP servers and clients tagged #preflight.
How do I install a #preflight MCP server?
- Open any server below and copy its install snippet into Claude Desktop, Cursor, VS Code, or another MCP client's configuration — remote servers need no separate download.