MCP Server Directory

Self-hosted MCP proxy that puts an x402 paywall in front of an existing MCP server

Search and read Apple Contacts — resolves numbers and emails to names, writes off by default

Open-source AI context firewall for governed model, retrieval, memory, and tool access.

Enhanced Godot 4.5-4.7 MCP: headless+editor+bridge, secure GDScript sandbox, closed-loop AI dev.

FilingDesk Data com.filingdesk/data

US LLC filing fees, annual-report deadlines and naming-rule checks, from official state sources.

Manage Apple iCloud Calendar through a reliable CalDAV MCP server.

Medical-billing tools for AI agents: prior-auth checks, denial decoding, claim triage, appeals.

Self-hosted operating layer for AI agents: knowledge, continuity, coordination, and governance.

Percolate io.github.bguillow-rgb/percolate

Search the Percolate specialty coffee database: 1,100+ coffees with brew recipes and pairings.

Audit whether ChatGPT, Gemini and Perplexity recommend a site. Readiness checks need no keys.

Nist Standards io.github.pipeworx-io/nist-standards

NIST Standards MCP pack

MCP server exposing the ATimeLogger REST API (activities, reports, types)

The Dutch Directory io.github.steffanricardo/the-dutch-directory

Dutch-learning market map: schools, Verified Pro tutors, exams, paths and courses near any capital.

Codebase analysis tools for AI agents: complexity, prop drilling, doc coverage, code smells.

QuickBooks Online MCP server for invoices, customers, and payments. OAuth 2.1 + PKCE, stdio/HTTP.

Japanese open-data MCP server: corporate-number validation, zengin bank codes, national holidays

Build, simulate and calibrate JAX block-diagram models of hybrid dynamical systems.

AgentPay — trust routing + spend caps for x402 agents io.github.romudille-bit/agentpay

Buyer-side trust oracle + capped sessions for x402 agents: verified_route, receipts, 17 free tools.

Kristo Intelligence io.github.hristovdimitri2-hub/kristo-intelligence

Pay-per-call DeFi intelligence for AI agents on Base — x402, USDC, no keys.

Unofficial SberBank Online: read accounts and operations, transfer with human approval.

MCP server for Japanese business days, holidays, and fiscal-period calculations.

FullEnrich io.github.FullEnrich/fullenrich

Search B2B contacts, enrich verified emails and phone numbers, and export results.

MCPVOT — x402 Facilitator Machine io.github.MCPVOT/mcpvot

x402 paid APIs for AI agents on Base. Blockchain, wallet, DEX, crypto, web search.

Local-first MCP server for your own LINE and Telegram chats. Data stays on your machine.