Catalog / Categories

MCP & integrations

Connecting agents to apps, data and services.

Entries

• Context7

  Pulls current, version-specific library docs and code examples into the agent's context so it stops guessing APIs from old training data.

  MCP server by Upstash Claude Code, Claude apps, Cursor, Codex, Gemini, Any agent

  Official Reviewed — safe to install Reads your accounts

• OpenAI plugins (Codex official marketplace)

  The built-in plugin catalog for Codex and ChatGPT. It has 62 plugins from OpenAI and partners that bundle skills, app connectors and MCP servers for tools like GitHub, Figma, Notion, Slack, Stripe and Google Drive.

  Plugin by OpenAI Codex, ChatGPT

  Official Reviewed — install with care Changes things freely

• Alpha Vantage MCP server

  Gives an agent Alpha Vantage's stock, ETF, forex, crypto, fundamentals, economic-indicator and technical-indicator data as MCP tools, hosted or run locally.

  MCP server by Alpha Vantage Claude apps, Claude Code, ChatGPT, Codex, Gemini, Cursor

  Official Reviewed — safe to install Reads your accounts

• Cloudflare MCP servers

  A set of hosted Cloudflare MCP servers for docs, Workers bindings, build logs, observability, browser rendering and other product areas.

  MCP server by Cloudflare Claude Code, Claude apps, Cursor, Codex, Any agent

  Official Reviewed — install with care Changes things freely

• dbt MCP server

  Lets an agent read your dbt project — models, lineage, metrics, job runs — query the Semantic Layer, and optionally run dbt commands like build, run and test.

  MCP server by dbt Labs Claude apps, Claude Code, Cursor, Any agent

  Official Reviewed — install with care Changes things freely

• DuckDB / MotherDuck MCP server

  Run DuckDB SQL from an agent over local files, in-memory data, S3 or MotherDuck — good for quick analysis of CSV, Parquet and JSON without a warehouse.

  MCP server by MotherDuck Claude apps, Claude Code, Codex, Gemini, Cursor, Any agent

  Official Reviewed — install with care Reads your accounts

• Figma MCP server and skills

  Gives coding agents design context from Figma (layout, variables, components, Code Connect mappings), and on the remote server lets them write back to the canvas.

  MCP server by Figma Claude Code, Claude apps, Cursor, Codex, Gemini, Any agent

  Official Reviewed — install with care Changes things freely

• Firecrawl CLI skills

  Search the web, scrape pages to clean markdown, crawl sites and watch pages for changes from inside an agent session.

  Skill by Firecrawl Claude Code, Codex, Cursor, Gemini

  Official Reviewed — safe to install Reads your accounts

• GitHub MCP Server

  Lets an agent read code, manage issues and pull requests, and check Actions runs and security alerts in your GitHub repositories.

  MCP server by GitHub Claude Code, Claude apps, Cursor, Codex, Any agent

  Official Reviewed — install with care Changes things freely

• Linear MCP server

  Lets an agent find, create and update Linear issues, projects and comments, so ticket work stays next to the code.

  MCP server by Linear Claude Code, Claude apps, Cursor, Codex, Any agent

  Official Reviewed — install with care Changes things freely

• Massive (formerly Polygon.io) MCP server

  Search and call the whole Massive.com market-data API — stocks, options, forex, crypto, futures, fundamentals, news — and run SQL over the results in a scratch in-memory table.

  MCP server by Massive Claude apps, Claude Code, Any agent

  Official Reviewed — safe to install Reads your accounts

• MCP Inspector

  The MCP project's official tool for connecting to an MCP server and exercising its tools, resources and prompts, in a web UI, a terminal UI or a scriptable CLI.

  Tool by Model Context Protocol Any agent

  Official Reviewed — install with care Runs on your machine

• MCP reference servers

  The seven reference MCP servers kept by the MCP steering group — filesystem, git, fetch, memory, time, sequential thinking and a test server — as working examples of the protocol.

  MCP server by Model Context Protocol Any agent, Claude apps, Claude Code, Cursor, Codex

  Official Reviewed — install with care Changes things freely

• MCP Registry

  The official public list of MCP servers, with an API clients can query and a CLI for publishing your own server under a verified namespace.

  Tool by Model Context Protocol Any agent

  Official Reviewed — safe to install Reads your accounts

• MCP Toolbox for Databases (BigQuery and more)

  Google's open-source MCP server that gives an agent ready-made SQL, schema and forecasting tools for BigQuery and 30-plus other databases, or tools you define in YAML.

  MCP server by Google Claude Code, Codex, Gemini, Cursor, Any agent

  Official Reviewed — install with care Changes things freely

• Notion MCP (remote)

  Notion's hosted MCP server lets an agent search your workspace semantically, read pages as Markdown, and create or update pages, databases and comments with your own Notion permissions.

  MCP server by Notion Claude apps, Claude Code, Cursor, ChatGPT, Any agent

  Official Reviewed — install with care Changes things freely

• OpenAI plugins & Apps SDK

  OpenAI's official way to package skills, an MCP server and optional UI into one plugin that people install from a shared ChatGPT and Codex directory.

  Tool by OpenAI ChatGPT, Codex

  Official Reviewed — safe to install Guidance only

• Playwright MCP

  Lets an agent drive a real browser with Playwright, working from the page's accessibility tree instead of screenshots.

  MCP server by Microsoft Claude Code, Claude apps, Cursor, Codex, Any agent

  Official Reviewed — install with care Changes things freely

• QuickBooks plugin for Claude

  Intuit's skills for QuickBooks Online (business health briefings, industry benchmarks, invoice reminders, estimates from email threads, payroll lookups and base-pay changes) running on the hosted QuickBooks connector.

  Plugin by Intuit Claude apps, Claude Code

  Official Reviewed — safe to install Changes things, asks first

• Sentry MCP

  Lets a coding agent look up Sentry issues, stack traces, traces and releases, and run Seer root-cause analysis without leaving the editor.

  MCP server by Sentry Claude Code, Claude apps, Cursor, Codex, Any agent

  Official Reviewed — install with care Changes things freely

• Snyk Agent Scan

  Finds the MCP servers and skills installed across your coding agents and checks them for prompt injection, tool poisoning, toxic flows and malicious code.

  Tool by Snyk Any agent, Claude Code, Claude apps, Cursor, Codex, Gemini

  Official Reviewed — install with care Runs on your machine

• Stripe MCP server and plugin

  Stripe's hosted MCP server lets an agent read and write your Stripe account (customers, invoices, subscriptions, refunds, payment links, analytics). The plugin adds Stripe skills on top.

  MCP server by Stripe Claude apps, Claude Code, Codex, Cursor, ChatGPT, Gemini

  Official Reviewed — install with care Can move money

• Supabase MCP

  Connects an agent to your Supabase projects to design tables, run SQL, apply migrations, read logs and generate TypeScript types.

  MCP server by Supabase Claude Code, Claude apps, Cursor, Codex, Any agent

  Official Reviewed — install with care Changes things freely

• Xero MCP server

  Xero's open-source MCP server for reading and writing a Xero organisation (invoices, contacts, payments, bank transactions, manual journals, reports and UK/NZ payroll timesheets).

  MCP server by Xero Claude apps, Claude Code, Cursor, Any agent

  Official Reviewed — install with care Can move money

• Zapier MCP

  Zapier's hosted MCP server exposes actions you choose, across 9,000+ apps (Gmail, Sheets, Slack, HubSpot, QuickBooks and more), as agent tools. The plugin adds onboarding, demo, explore and status skills.

  MCP server by Zapier Claude apps, Claude Code, Cursor, Codex, Gemini

  Official Reviewed — install with care Changes things freely

Curated by Andrew Borden-Chisholm. Notes on building with these tools are on the blog.