MCP Server Directory

constitution-lint dev.agentopskit/constitution-lint

Static linter for CLAUDE.md-style agent constitution files: 10 operational-guardrail checks.

WebhookTest.net net.webhooktest/webhook-tester

Anonymous webhook capture, inspection, waiting, and response configuration for AI agents.

Read-only GCP tools for debugging incidents and finding cost savings

levelfour-mcp ai.levelfour/levelfour-mcp

Cloud, SaaS and AI spend in one system of record. Each saving applied for you or shipped as code.

Wraps the ContinuityGuard CLI as a single generic MCP tool for video-clip continuity scans.

githunt-mcp io.github.githunt-agent/githunt-mcp

Search, rank, and analyze GitHub developers for tech recruiting via GitHunt's API.

Homechecker Guides io.github.Steven3265/homechecker-guides

Homechecker's professionally authored Australian homebuyer guides: search, cite, build checklists.

Losbeto — Market Data for AI Agents io.github.rmartins1451/losbeto

Market data, LLM gateway, ML forecasts, batch+bundle, self-building catalog. USDC via x402 + MPP.

F1-grade MCP certification. 52 tests, 9 tiers (49 scored + T9 Receipt validation). Ecosystem: #2759

UpToCode io.github.DDYRich72/uptocode

Evidence-backed architecture-quality analysis for Python agent applications.

LiveVariant io.github.livevariant/livevariant

Build, inspect and read adaptive A/B tests. Config travels in the URL; no account or API key needed.

MCP Surface Lint io.github.DLeibner/mcp-surface-lint

Statically audits MCP tool surfaces for token cost, schema quality, and design issues.

AI visibility checker: does AI recommend your brand? GEO/AEO, runs locally, BYO keys. CLI + MCP.

Inspect and safely clean local Xcode, Simulator, and XCTest storage.

Fudge io.github.scroobius-pip/fudge

Build websites that look designed, not generated. Fudge gives AI real websites to study.

MCP server for GroupDocs.Parser — extract text, images, metadata, tables, barcodes via AI.

TravelMind MCP online.trvaelmind/travelmind-mcp

TravelMind: 8 MCP tools for travel (12306 trains, flights, hotels, geocode, planning, policy).

MCPFax Vehicle Diagnostics com.mcpscores/vehicle-fault-codes

A fault code, a VIN, or a recall — answered from public NHTSA and standards data.

sitectrl ai.sitectrl/sitectrl

Your AI builds real hosted websites: describe it, get a live site with SSL, forms, analytics. Free.

Whalesync com.whalesync/whalesync

Build and manage Whalesync syncs: connect apps, map tables and fields, monitor and fix issues.

Pay-per-call developer utilities and npm supply-chain security tools for coding agents, over x402.

Mida so.mida/ab-testing

Create, run and analyze A/B tests and personalizations on your site with Mida.

Plan, validate, and build products and features with LaunchChair.

Test whether AI agents retain critical instructions as conversations grow.