MCP Server Directory

Japan Business Data io.github.matanemaboroshi/japan-business-data

Normalize and romanize Japanese addresses, look up postal codes, count Japanese business days.

Run, write and test the API requests saved in a Kurlo workspace, the open source API client.

Scans code for insecure LLM/AI integration: exposed keys, unsafe output, prompt injection

LotsLink link.lots/lotslink

Free, unlimited short links, QR codes and click analytics your AI agent can create and track.

G62 Patent Search ai.g62/patent-search

Public patent search with ranked candidates, source links and coverage context. Developer beta.

WhereToLive London open data xyz.wheretolive/london-open-data

London postcodes and districts from official open data: prices, crime, schools, rents, commutes

Skill Me dev.skillme/skillme

Agent skills for Claude, Codex and Cursor: find, install and load skills from one connector.

MyLeadTech HVAC app.myleadtech/mcp

HVAC MCP server — fault codes, model lookup and answers cited to the OEM manual page.

Human Test Desk site.chatgpt.newvideocreator.human-test-desk/human-test-desk

Free human usability tests for agent-built websites. Submit tasks; get written findings as JSON.

Xzar si.xzar/xzar

Crash-test your AI agent on real professional decisions, graded against what actually happened.

School Timetable Builder io.github.wilbek-source/timetable-builder

Build a full weekly timetable for a primary school (classes, teachers, rooms) via chat.

Lint Jev and Luna decision-model questions, or ask the model to check them with your key.

attest — verification for AI agent artifacts io.github.mrpkk/attest

Verify an AI agent artifact: schema, emptiness, provenance and mandate authority, Ed25519-signed.

Lets an AI agent edit vertical 9:16 video ads from your footage, a reference ad or an idea.

coso-mcp com.ascent-partners/coso-mcp

Open COSO internal-control review MCP: scope, risk, controls, sampling, testing, workpapers.

Game modules, project scaffold and SDK skills for building web games on iDos Games.

outcometick io.github.outcometick/outcometick

Polymarket and Predict.fun historical tick data, plus backtest quotes and status, over MCP

Record how any CLI behaves and check that a rewrite behaves the same (golden tests).

APIR Agent Verification ai.apir/verify

Check an AI agent you did not build: is it who it claims, inside its mandate, and what's its record

AI-editable diagrams as code: draw from YAML, propose diffs a human applies, export SVG/Mermaid.

tools dev.workers.sebastiaan-ba3.x402lint/tools

Lints whether a paid API's 402 response speaks the x402 protocol correctly.

PageDuel io.github.nichovski/pageduel

Web analytics, A/B test results and revenue attribution for your sites.

Query the Google Fonts Developer API: font list, search, family details.

Helfer & Profi io.github.helferundprofi/helfer-und-profi

Free German neighborhood marketplace: search local help requests and providers by postal code.