MCP

LeanGuard is a Lean 4-based runtime guardrail system for agent tool use, with native temporal policies, Python integration, and optional MCP support.

brw is a semantic browser control tool for agents. It runs a real visible Chrome/Chromium browser and exposes control through MCP and HTTP, with stable refs, semantic page snapshots, and post-action observations.

Local-first SQLite memory engine for AI coding tools that preserves project decisions and context across agents and model switches.

An open-source Stripe-like payment layer for AI agents and paid MCP tools, with spend authorization, per-call charging, and settlement flows for test credits in beta.

OpenSpender is a self-custodial wallet for agent-to-agent payments. The page shows a command-line connect flow, explains allowance-based spending rules, and includes an example of one agent paying another through MCP-compatible tools.

A self-hostable MCP endpoint that centralizes accounts, memory, skills, secrets, and access controls for AI agents. It supports multiple providers, profile-based permissions, audit logs, and deployment on your own machine or cloud.

Cupertino is a macOS app that exposes Apple apps like Mail, Calendar, Contacts, Messages, Notes, Safari, Maps, Screen, and Sound through MCP servers for agents. It includes a signed menu-bar app, a visible permission model, read/write controls, and a live session log.

An MCP-based research agent that searches live web data through SQL and publishes reports with the full query and tool trajectory.

dmx is an open-source MCP server that adds structured, gated workflows to coding agents like Cursor, Claude Code, and Copilot. It focuses on loop-based development with human approval points, validators, persistent job state, and repo-backed configuration.

Open-source MCP server for live messaging and coordination between coding agents like Claude Code, Codex, Cursor, Gemini CLI, and Grok Build.

MCP-first SaaS tools for AI agents, including URL shortening, pastebin, mailbox, reminders, and file sharing. The page shows both MCP and REST API access, plus example setup commands for several agent and coding tools.

Open-source local AI coworker system that routes Claude Code and Codex work to local models on your own hardware, with durable task handling, multi-machine cooking, and MCP/CLI support.

Open-source multiplayer design canvas where humans and AI agents design together in real time, with built-in MCP support and self-hosting options.

A governed workflow execution spec for MCP hosts, with fail-closed semantics, version pinning, checkpoint enforcement, and a reference implementation plus conformance suite.

GreatArrow.ai is an open beta workspace that gives Claude, ChatGPT, Cursor, Gemini, and other MCP-compatible clients shared memory plus action access across tools like Gmail, Slack, GitHub, Notion, and Jira.

Kotro is a local control plane for coding agents that governs MCP tool actions and LLM traffic with one binary. The page shows install options, supported clients, dashboard access, and concrete controls like schema pinning, redaction, cache, budget, and circuit breaker behavior.

Compass is a local-first code knowledge graph engine in Rust that turns codebases and project artifacts into searchable, queryable graphs. The page shows support for architecture mapping, change-impact analysis, historical graph diffs, deterministic CompassQL queries, and integrations like VS Code, MCP, and export form

Symbio is a local AI assistant that learns from user corrections, builds training data from notes, and can fine-tune itself over time. It supports file operations, sandboxed shell commands, RAG, a Telegram bot, and a demo with MoA and skill adapters.

A job board focused on AI engineering roles, with first-party listings for RAG, agents, evals, inference, and MCP-related work. The page shows live filters, location and seniority breakdowns, and a nightly refreshed feed of open roles.

Heddle is a GitHub repository for a git-native coordination layer for coding agents, using intent leases, isolated worktrees, and gated landings to avoid agents overwriting each other.

Projektor is a self-hosted issue tracker and wiki built for AI agents as the primary client, with MCP-based agent access and Cloudflare-based deployment.

A local-first Windows tool for indexing, searching, and loading large agent skill libraries without keeping full skill bodies in context. It supports SQLite FTS5 search, multiple ranking modes, CLI use, HTTP, and MCP stdio.

A CLI tool that keeps Claude Code and Codex configs in sync, with drift detection, backup-on-write, and a visual board for comparing host-side agents, skills, hooks, and MCP servers.

A hosted MCP server for time and date utilities, including timezone lookup, calendar info, timestamp conversion, Unix time, and Alphadec conversion. The README says it works with Claude.ai, Claude iOS, Claude Code, OpenAI Codex, and any MCP-compatible client.