MCP Server Directory

Dutyfinch Tariff Lookup dev.workers.cybermax-tools.cybermax/dutyfinch-chatgpt

US import duty and HTS codes from the official USITC schedule, plus Section 301 China status. Free.

English Test Coach io.github.jimbob1414/english-test-coach

IELTS writing practice, study plans, lessons and vocabulary with optional account tools.

WhatAreYouBuilding.AI ai.whatareyoubuilding/wayb

A catalogue of indie products, not a registry of MCP servers. Reading needs no credential.

neonloops com.neonloops/neonloops

Build, test and publish agentic workflows from your AI client: approve steps, read tables, see runs.

Falcon Builder dev.falconbuilder/falcon-builder

Build, debug, and publish production AI agent workflows in Falcon Builder from any MCP client.

acp-sandbox com.flo-voice1/acp-sandbox

Agentic Commerce Protocol sandbox: agent builds a cart, human approves a real PayPal payment.

ComplyOnSite com.complyonsite/tools

UK waste codes, HAVS, noise, first aid, paperwork and construction statistics.

Lumaion Continuity app.lumaion/continuity

Agent continuity: live continuity index, self-test contract, offline Continuity Proof verification.

Prüft eine DSFinV-K-CSV gegen die amtliche Spaltenliste, die Wertelisten und die Formate der DSFinV

UDS Toolbox com.udslib/uds-toolbox

Find why a UDS flash failed from a CAN trace; decode UDS, ISO-TP and DTCs. No hardware.

HOUSINGFAX com.housingfax/mcp

Immediate home report for a building or flat in Spain: 22 checks from official public sources.

UTF-16 code-unit run, text discarded io.github.sadri-dridi/utf16-run

UTF-16 code-unit run, text discarded

Telenow — AI Phone Calls & Voice Agents ai.telenow/telenow

Place phone calls, run calling campaigns and build voice agents from your own Telenow numbers.

Settled tools.settled/settled

Check x402 endpoints before your agent pays: payTo, paid test purchases, payee and buyer reports

Verifiable test-data analysis: deterministic tools, evidence ledger, number-level checks.

Parallel Codex CLI workers from any MCP client: one git worktree each, state in SQLite, web board.

TradeAssi com.tradeassi/mcp

Crypto tools for AI agents: live market data, exchange-wide screener, backtests and paper trading.

Cobrain space.cobrain/cobrain

Shared Markdown memory for Claude, ChatGPT, Claude Code and Codex. OAuth, no API keys.

A map of your codebase for AI agents: code graph, search, call paths and change impact. No API key.

DomainCanary com.domaincanary/mcp

Check a domain's DMARC, SPF and DKIM, build SPF records, explain bounces, read DMARC reports.

Scans MCP server auth code for OAuth 2.1 anti-patterns: token passthrough, missing audience

UK sort code 6-digit shape, value discarded io.github.sadri-dridi/sortcode-ok

UK sort code 6-digit shape, value discarded

x402 Doctor io.github.Fizzl13/x402-doctor

Is this x402/MPP API safe to pay? $0.001 preflight, fixes, a $0.25 test purchase. Free quick check.

Journal entry testing (JET) for accounting audits. 15 screening rules, zero dependencies.