MCP Server Directory

Generate realistic, relational synthetic JSON test data from templates, via the JsonFabrica API.

The 2026-07-28 MCP revision removed the initialize handshake, sessions, ping and 4 more RPCs. 27 rul

stdio MCP server for StyleKit styles, templates, assets, tokens, recipes, and lint checks.

HVAC Builder app.hvacbuilder/hvac-builder

Design, solve and simulate HVAC systems from real components, weather years and buildings.

Prediction Market News — buy per-query in-session (pmnews) com.a2awire/data-prediction-market-news

Prediction-market news, $0.01/query. Register and buy inside this MCP session — free testnet funds.

x402 HTTP 402 + MCP paywall: charge USDC per agent call. Self-host via npx or Docker.

A repository wiki of Markdown pages anchored to real code: read, search, and verified writes.

Cross-repository semantic code intelligence for AI coding agents, from a local code graph.

Real shortest sea routes between ports: distance, canals/straits, GeoJSON. UN/LOCODE aware.

MCP server and CLI that resolves config/env-var cascade across .env, docker-compose, and Kubernetes

Orbit ai.buildwithorbit/orbit

Turn any task into the right API calls: discover, evaluate, and integrate public APIs.

Base64 encode, input discarded io.github.sadri-dridi/base64-ok

Base64 encode, input discarded

Python Package Runtime Test io.github.ligafew/python-package-runtime-test

Hosted Python sandbox for package runtime verification: pip install and usable-import evidence.

PermitReporter — US Building Permit Intelligence com.permitreporter/us-building-permits

Source-linked building-permit search across 34 US states and DC, with county-level coverage.

text-slugifier io.github.ryuamarines/text-slugifier

Converts text titles into URL-safe slugs and flags duplicates. x402 payment required (testnet USDC).

Deterministic eligibility decisions and test-driven rule authoring via the Aethis developer API.

MCP server for SalesBuildr — quoting and sales workflows for MSPs.

Product Hunt Launches — new & upcoming products (producthuntwatch) com.a2awire/data-product-launch-upcoming-product-tracker

Upcoming product launches: trackers & announcements. Register in-session — free testnet funds.

EU Cyber Resilience Act (CRA, Regulation (EU) 2024/2847) compliance MCP server. 4 tools, 11 tests. A

Otherlay com.otherlay/otherlay

Secure access to a dedicated Otherlay Mac for files, terminals, Git, builds and UI inspection.

GS1 element strings, DataMatrix, eight keys, ITF-14 print specs and price-embedded in-store codes.

x402 MCP Starter io.github.kadopi/x402-mcp-starter

Free self-hosted x402 USDC billing for Cloudflare MCP servers, with a Base Sepolia test endpoint.

Context intelligence for AI coding agents: navigation, impact, memory, guarded edits.

Toolbox for AI agent skills: scaffold, lint, pack, install, and serve SKILL.md skills