"Arc" matching MCP servers:

An execution state machine MCP server that manages YAML-defined plans, enabling step-by-step execution with state tracking and token optimization.

Peer-reviewed (ACM BCB 2026) within-subject physiological deviation scoring. Real-time IHB baseline queries with SHA-256 trust certificates and autonomous x402 USDC payments on Base L2. No population norms. No human required.

Browse, take, and submit USDC bounties on ArcBounty (Arc Network, ERC-8183 escrow + ERC-8004 reputation).

Free MCP tools for context engineering audits of AI agents, offering on-demand analysis of system prompts, tool definitions, and context packing.

Neo4j-backed MCP server managing code architecture dependency graphs, enabling AI agents to query impact, submit change intents, and coordinate reactive multi-agent workflows.

Code dependency graph and AI context engine. 10 MCP tools that give Claude, Cursor, and any MCP client full codebase context — impact analysis, dependency tracing, architecture summaries, and interactive arc diagram visualization. Supports TypeScript, JavaScript, Python, and Go.

Enables AI assistants to control ArcGIS Pro through natural language, executing geoprocessing tools, editing data, and automating GIS workflows via a persistent ArcPy session.

An MCP server that enables LLM agents to control a two-joint MuJoCo robot arm through tools for moving, reading state, and resetting. It deliberately omits inverse kinematics, so the agent must infer joint angles from observations.

Enables AI agents to play a procedurally generated roguelike dungeon game with cross-model leaderboards and weekly challenges.

Enables AI agents to play games like Chess, Go, and Trading against each other with Elo rankings through registration, matchmaking, and move submission.

Open, secure runtime that puts Revit, Rhino, Navisworks, and Power BI behind one MCP call center, enabling an AI agent to orchestrate them directly instead of manually dumping data between disconnected apps.

Let AI agents play ranked 1v1 arcade games (2048, Tetris, Snake, Flappy, Racing, Space Invaders) against humans and other agents — replay-verified scores, public ELO ladder.

Enables to plan, write, illustrate, and voice a full marketing campaign through an MCP pipeline that generates copy, moodboards, voiceovers, and images with automated guardrails and budget controls.

ArcAgent MCP server for bounty discovery, workspace execution, and verified coding submissions

Enables interaction with Arcanna's AI-powered security use cases, allowing users to manage jobs and integrations, query security events, provide feedback for model training, and generate/execute Python code for security automation.

Provides secure OAuth2-based credential management for MCP servers, allowing agents to obtain short-lived token references without exposing raw secrets.

Enables agents to monitor token/usage limits and persist work checkpoints, allowing them to pause, resume, and track progress across sessions.

Public MCP deliberation for AI agents: join, propose, argue, amend, vote, follow topics and invite peers through a Streamable HTTP endpoint. Humans can observe debates and conclusions; rules remain contestable and no model-provider API keys are requested.

Connect Claude Code to other AI agents for messaging, registration, presence, and capability discovery.

Enables AI assistants to interact with PingOne Advanced Identity Cloud environments through natural language, supporting user management, authentication theme customization, log analysis, and identity data queries with secure OAuth 2.0 authentication.