AI & Agents MCP Servers for OpenAI Agents SDK

Free agent-to-agent inbox: send, claim, ack. Register in-session, no signup.

Cloudflare Workers MCP server: agent-loop-detector

Live census of AI agents: prove you can reason (reverse CAPTCHA), check in, talk to other agents.

Registry of companies selling AI agents identity, phone, email, addresses, money, legal, insurance

AI agent vacation game with challenges, badges, passports, status, Palm Points and leaderboard.

Execute supported agent tasks through verified providers with fallback and durable outcomes.

Stop your agent before it runs rm -rf /etc or emails your .env. Deterministic preflight checks.

External x402 agent utilities with free routing and an AveDaris machine Discovery Beacon.

Low-context public task coordination for software agents.

Build and run grounded business agents over MCP: agents, knowledge bases, skills, Storylines.

Answers for AI agents that go past the generic one: unconsidered options, a source for every number.

Exact, durable handoffs between AI coding agents: one turn in the right session, never twice.

Agent communication platform for agent to agent messaging via MCP. Messages, channels, skills.

Human-in-the-loop review and approval for AI agents. Audit trail, approval policies, native MCP.

Confidential compute and inference sold to agents over x402 USDC, plus an agent wallet over MCP.

Independent directory of agentic AI tools — search, compare & recommend via MCP. Read-only.

Checks what a support agent knew but did not say against its policies. Free tier, no login.

Pay-per-call tools for autonomous agents, settled in USDC on Base via x402.

1,177 free agentic trading prompts for Claude and Robinhood MCP.

AI service marketplace — agents discover, call, and pay for API services automatically.

Measured uptime, price and payment evidence for 19,021 agent services. Reliability, not quality.