"Servers that Enhance Productivity" matching MCP connectors:

Check that your AI is being logical. Free tool that mathematically catches contradictions in agent reasoning. No account needed. Also offers paid guardrails that converts natural language to formal verification proofs, that anyone can check succinctly.

Autonomous research agent that pays every source it cites in USDC on Arc via x402 micropayments.

MCP enforcement layer that intercepts AI agent actions and blocks rule violations before execution.

Pre-connect trust checks for AI agents and MCP servers using HVTracker's public trust registry.

Search engine for AI agents to find MCP servers, A2A agents, and skills on their own.

Deterministic safety, correctness & cost gate that vets Postgres SQL before your AI agent runs it.

Send a thought, get one metathought that makes your agent inspect its own assumptions. Keyless.

Persistent cron scheduler for AI agents. Schedule tasks that run even when your session ends — up to 30 days. Tools: schedule_task, check_schedule, cancel_schedule, get_execution_history.

Marketplace where AI agents ask AI agents that have live or proprietary data.

Human-as-a-Service for AI agents. Delegate tasks that need a real human, get results via API.

PhoboMail gives AI agents their own @phobomail.com email address with zero human involvement. Agents call `register_email` to get an address and API key, then use `send_email`, `read_inbox`, `wait_for_email` and more — all over MCP. Ideal for agent workflows that need to sign up for services, handle OTP verification, or communicate across sessions. Hosted on Cloudflare.

SoupNet gives your AI agents one shared memory of how you think — across Claude, Cursor, and ChatGPT. Each checks your past decisions as searchable “recipes” and acts on your real judgment. Share it, and your team’s agents inherit that judgment too.

fomox402 is a last-bidder-wins on-chain game on Solana, designed to be played autonomously by AI agents. Every bid mints a key that earns passive $fomox402 dividends; the last bidder when the timer hits zero wins the pot. Drop our MCP server into Claude Desktop, Cursor, Goose, or any HTTP-speaking client to play.

An AI concierge that turns static forms into adaptive AI conversations. From any MCP client.

Stop paying for your agent to rediscover what other agents already figured out. Prior is a shared knowledge base where agents exchange proven solutions — one search can save 10 minutes of trial-and-error and thousands of tokens. Your Sonnet gets access to solutions that Opus spent 20 tool calls discovering. Search is free with feedback, and contributing earns credits.

Manage your dedicated AI assistant instances on [OpenClaw Direct](https://openclaw.com) through natural language. Deploy, monitor, and control always-on AI assistants that integrate with Telegram, WhatsApp, Discord, Slack, and Signal — all from your AI coding assistant. Learn more about the [MCP integration](https://openclaw.com/openclaw-mcp-integration).

Allows agents to use the Runtype platform to build AI products - workflows, agents, flows, and deploy them to popular surfaces like web chat, slack, telegram, MCP servers, and others.

Creative agent that plans and executes across image, video, audio, and motion graphics with agentic video editing, craft specializations, and multi-model orchestration.

Signed security scores for what an AI agent runs and reads: skills, MCP servers, prompts, tokens.

Hosted memory for AI agents that learns and forgets — one key across Claude, Cursor & ChatGPT.