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Apache-2.0 Python framework for building MCP-native agents with composable workflow patterns, full MCP server lifecycle management, durable Temporal execution, agent-as-MCP-server support, and provider plugins for major LLMs.

AgentTrust stdio MCP server giving AI agents verified identity with email, instant messaging, and cloud file storage across 19 Ed25519-signed tools.

macOS app and bundled stdio MCP server that lets Claude access selected local services such as Calendar, Contacts, Messages, Location, Maps, Reminders, camera, microphone, screenshots, Shortcuts, utilities, and Weather.

PreToolUse hook that blocks edits adding remote MCP server URLs unless their host appears in an explicit allowlist, reducing accidental connection to unreviewed OAuth, SSE, or Streamable HTTP MCP endpoints.

49 remote MCP security tools for CVE/KEV/CWE/EPSS lookup, composite CVSS+EPSS+KEV+PoC risk scoring, CVSS v3.x vector parsing, domain/IP/IOC enrichment, dependency and web intelligence checks, MITRE ATLAS AI/ML attacks, and MITRE D3FEND defenses. Anonymous tier available; Pro tier uses an API key.

Fullstack MCP framework for building MCP servers, MCP Apps, MCP agents, and MCP clients with TypeScript and Python SDKs, scaffolding, inspector tooling, hosted deployment, observability, OAuth, notifications, sampling, and agent integrations.

Microsoft open-source Model Context Protocol curriculum with hands-on MCP server, client, security, transport, auth, deployment, Azure, VS Code, Inspector, PostgreSQL, and cross-language examples.

Remote MCP server for X and Twitter automation: tweet search, profile timelines, follower export, media workflows, webhooks, and confirmation-gated write actions.

Official CircleCI MCP server that lets LLMs query build and test failures, detect flaky tests, check pipeline status, fetch build logs, and validate config in CircleCI through natural language.

MCP server for querying a local DuckDB database file from Claude through a single SQL query tool, with optional DuckDB-native read-only mode.

MCP server from HttpRunner that exposes UIXT device and browser automation tools for Android, iOS, Harmony, and Web testing through the `hrp mcp-server` command.

MCP server that lets Claude and other MCP clients search and page through the official MCP Registry from a local stdio server.

MCP server from Zilliz for connecting Claude to Milvus vector database collections, text search, vector search, hybrid search, inserts, deletes, indexes, collection loading, database switching, and collection metadata.

Visualization MCP server for generating charts, diagrams, maps, graphs, spreadsheets, and data-analysis visuals with AntV.

Official MCP server that fetches web content and converts HTML pages into markdown for model-friendly reading.

MCP server for connecting Claude to MySQL databases with schema inspection, SQL query execution, SSH tunnel support, multi-database mode, and configurable write-operation controls.

Official MCP server that gives Claude current time and timezone conversion tools using IANA timezone names.

Official Heroku Platform MCP server that connects Claude and other MCP clients to Heroku apps, dynos, add-ons, pipelines, Private Spaces, maintenance mode, logs, deployments, one-off dynos, Heroku Postgres, and optional Heroku AI tools through the Heroku CLI.

The official SingleStore MCP server (singlestore-mcp-server) that lets AI assistants manage SingleStore from natural language — running SQL on a workspace, inspecting organizations, workspace groups, and workspaces, managing starter workspaces, notebooks, scheduled jobs, and Stage files — with no API keys required thanks to browser-based OAuth.

The official Tigris MCP server (@tigrisdata/tigris-mcp-server) that connects AI agents to Tigris, a high-performance S3-compatible object storage system — listing, creating, and deleting buckets; listing, uploading, and deleting objects; creating folders and files; and generating shareable links — using S3-style access keys against the Tigris endpoint.

The official Xero MCP server (@xeroapi/xero-mcp-server) that lets AI assistants work with a Xero accounting organisation — managing contacts, chart of accounts, invoices, credit notes, payments, bank transactions, manual journals, quotes, items, and payroll, and reading financial reports — using Xero OAuth2 custom connections or a bearer token.

The official OpenSearch Project MCP server (opensearch-mcp-server-py) that lets AI assistants query and operate OpenSearch clusters — listing indices, reading mappings, running Query DSL and PPL searches, inspecting shards and cluster health — over stdio or streaming transports, with basic-auth, AWS IAM, and header-based authentication.

Packrift MCP Server exposes Packrift's packaging-supplies catalog through a remote MCP endpoint. It lets AI agents search packaging products, retrieve pricing and inventory context, and create cart URLs for ecommerce packaging workflows.

Local-first GoodMemory MCP server for giving Claude durable, scoped memory with SQLite storage, auditable recall, explicit deletion, and opt-in governed writes.

Source-backed KLinePic stdio MCP server for turning broker and exchange fills into annotated post-trade candlestick review charts, with capability discovery and no-charge request preflight before quota-consuming rendering.

The official Codacy MCP server (@codacy/codacy-mcp) that gives AI assistants access to the Codacy API for code quality, security, and coverage — listing repository and pull-request issues, retrieving file coverage and duplication, searching security (SRM) findings, inspecting analysis tools and patterns, and running local analysis with the Codacy CLI.

The official Convex MCP server, built into the Convex CLI, that lets AI agents introspect and query a Convex deployment — listing tables, paginating data, running deployed functions and read-only one-off queries, reading logs and function specs, and managing environment variables — with production deployments blocked by default as a safety measure.

The official Infisical MCP server (@infisical/mcp) that lets AI assistants work with Infisical's secrets-management API through function calling — reading, creating, updating, and deleting secrets, and managing projects, environments, folders, and project members — authenticating with a Machine Identity (universal auth) or an access token against Infisical Cloud or a self-hosted instance.

The official InfluxData MCP server for InfluxDB 3 (Core, Enterprise, Cloud Dedicated, Clustered, and Cloud Serverless). It lets LLMs run SQL queries, write line-protocol data, inspect databases and measurement schemas, manage databases and tokens, and check cluster health over the Model Context Protocol.

The official Mux MCP server (@mux/mcp) that gives AI agents access to the Mux API for video and analytics. It uses a "Code Mode" scheme — exposing a documentation-search tool and a code tool that runs agent-written TypeScript against the Mux SDK in an isolated sandbox — to work with Mux Video (assets, live streams, playback IDs, uploads) and Mux Data (viewer metrics and monitoring).