MCP Server Directory

Backwork io.github.tylergibbs1/backwork-mcp

Medicare and commercial payer policies, prior auth, claim risk, and medical codes from Backwork.

Shared memory and delegation for Codex, Cursor, Claude Code, and OpenCode.

MCP Endpoint Lint - handshake, tool schemas, JSON-RPC errors dev.workers.pathwren.www/mcp-endpoint-lint

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

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.

Storm risk, route risk and reanalysis backtests for any point on earth. No key, no wallet.

databutler-stats io.github.physics-star-cat/databutler-stats

Exact statistics & probability: distributions, hypothesis tests, CIs, Bayesian updates, regression.

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.

ProfitCollector ca.bakhour/profitcollector

22 pay-per-call developer, security, network and data utilities using x402 on Base.

Local-first MCP server for data-quality discovery, evidence, drift, and controlled repair.

Unicode word count, text discarded io.github.sadri-dridi/word-n

Unicode word count, text discarded

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

fabricate build.fabricate/fabricate

Public Fabricate pricing and documentation tools.

140 deterministic tools for your AI: logs, tests, SQL, diagrams, SPARQL. Local, no network.

MCPFax Food Facts com.mcpscores/food-facts

Can this person eat this? Allergens, additives and nutrition from a barcode.

Monitor GitHub repo health, DORA metrics and CI signals from your AI assistant.

Playwright-style MCP to inspect, control, and debug PySide6 desktop GUIs.

Drawcall io.github.drawcall-ai/drawcall

Discover Drawcall workflows for 3D apps and asset creation; read APIs and approve CLI logins.

Call every global AI model through one OpenAI-compatible API. One key, all models.

Project Desk ai.atlier/project-desk

Agent-updated work tracker for builders directing AI across multiple projects.

New Research Papers & Science Breakthroughs — buy per-query in-session (scibreak) com.a2awire/data-science-breakthrough-new-research-papers

Science breakthroughs: new research papers. $0.01/query. Register in-session — free testnet funds.

US Economic Releases (CPI, Payrolls, Fed) — buy per-query in-session (fedwatch) com.a2awire/data-fomc-cpi-fed-economic-releases

CPI, payrolls, unemployment, Fed statements. $0.05/query, free testnet funds in-session.

Feldspar free repository security scan com.project-feldspar/scan

Free deterministic security scan of public git repos: OSV.dev vulnerable deps, secrets, config lint.

Reports what a checked Lean 4 or Metamath proof rests on: inherited sorry, compiler trust, axioms.

notifyd io.github.rmzlb/notifyd

Operate a self-hosted notifyd instance: digest, jobs, retries, suppressions, projects, test sends.