10 MCP servers

MCP servers for Cursor

Cursor reads MCP servers from an mcpServers object in ~/.cursor/mcp.json (every project) or .cursor/mcp.json in a project root (that project only). Add the entry below under that key, or paste the equivalent into Settings then MCP then Add new MCP Server. Entries with a url are hosted; everything else spawns a local process with command/args.

All clients For Claude Code For Cursor

Context7

Live library docs, piped into your coding agent

"context7": { "command": "npx", "args": ["-y", "@upstash/context7-mcp"] }

Works unauthenticated on a low rate limit. Add --api-key <key> (free, from context7.com/dashboard) for higher limits.

Supabase MCP

Query and migrate your database from the agent

"supabase": { "command": "npx", "args": ["-y", "@supabase/mcp-server-supabase@latest", "--read-only", "--project-ref=<project-ref>"], "env": { "SUPABASE_ACCESS_TOKEN": "<token>" } }

Needs a Supabase personal access token. Drop --read-only only once you actually want the agent applying migrations.

PostHog MCP

Ask your product analytics in plain English

"posthog": { "url": "https://mcp.posthog.com/mcp" }

Hosted by PostHog. It asks for a PostHog personal API key the first time a tool call runs.

Brave Search MCP

Web, image, and news search results for an agent

"brave-search": { "command": "npx", "args": ["-y", "@brave/brave-search-mcp-server"], "env": { "BRAVE_API_KEY": "<key>" } }

Needs a Brave Search API key. Brave removed the always-free tier in 2026; a new key starts on metered billing.

Filesystem MCP

Give an agent read/write access to a real folder

"filesystem": { "command": "npx", "args": ["-y", "@modelcontextprotocol/server-filesystem", "/path/to/allowed/directory"] }

Every path you list becomes readable and writable by the agent. Only list directories you mean to hand over.

GitHub MCP Server

Issues, PRs, and repo search from inside the agent

"github": { "command": "docker", "args": ["run", "-i", "--rm", "-e", "GITHUB_PERSONAL_ACCESS_TOKEN", "ghcr.io/github/github-mcp-server"], "env": { "GITHUB_PERSONAL_ACCESS_TOKEN": "<token>" } }

Needs Docker running locally and a GitHub personal access token with repo scope.

Playwright MCP

Drive a real browser from the agent, no screenshots needed

"playwright": { "command": "npx", "args": ["@playwright/mcp@latest"] }

First run downloads a Chromium build via Playwright. No API key.

Postgres MCP Pro

Query plans, index tuning, and safe SQL for your database

"postgres": { "command": "uvx", "args": ["postgres-mcp", "--access-mode=restricted"], "env": { "DATABASE_URI": "<connection-string>" } }

Needs uv/uvx installed and a Postgres connection string. --access-mode=unrestricted allows writes; restricted is read-only.

Sentry MCP

Ask an agent to triage your error backlog

"sentry": { "url": "https://mcp.sentry.dev/mcp" }

Hosted by Sentry. First use opens a browser tab for OAuth; no local process to run.

Slack MCP Server

Search and post to Slack from the agent, officially

"slack": { "url": "https://mcp.slack.com/mcp" }

Hosted by Slack, GA since February 2026. A workspace admin has to approve the connection before it works.