"protocols.io" matching MCP connectors:
GET /v1/connectors — MCP directory API reference290+ quality-scored API capabilities for AI agents across 27 countries via MCP.
Runtime permission, approval, and audit layer for AI agent tool execution.
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.
Trust filter for ERC-8004: only ~3.8% of x402 endpoints hit 5+ payers/30d. Free MCP; x402 upgrade.
Trust Graduation gate: Claude can do real work once Mission decides what it is allowed to do.
Blockchain SSN for AI agents. MCP gateway that blocks at the point of action, tamper evident audit.
Shared task queue for humans and AI agents: leases, handoffs, approvals and signed receipts.
Build and run grounded business agents over MCP: agents, knowledge bases, skills, Storylines.
MCP server for Boson Protocol — on-chain agentic commerce for physical & digital goods.
MCP enforcement layer that intercepts AI agent actions and blocks rule violations before execution.
Real-time data feeds for AI agents with USDC micropayments on Base for premium tools.
Marketplace of pay-per-call APIs for AI agents. Top up once with USDC, then call any listed API - gasless, walletless, metered per request. Includes onboarded providers and hundreds of x402-native APIs discovered on-chain.
Open execution contract for agents doing business work. 6 operators, one MIT-licensed spec.
Open execution contract for agents doing business work. 6 operators following one spec. Approval-gated, tenant-isolated, MIT. Reference at chieflab.io/spec/v0.1.
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.
Create, browse, remix, collaborate on, and run durable AI workflow nodes from MCP hosts.
- RunbearOAuth
Create and manage organization-scoped Runbear agents through MCP. Configure agents, integrations, triggers, schedules, Slack deployment, and recent-run inspection with OAuth authentication.
Give AI agents the LinkedIn tools to find, qualify, engage, and follow up with prospects.
Agent-first data marketplace — AI agents search, purchase, and sell datasets via MCP.
Voice and chat for AI agents — Discord, Teams, Meet, Slack, Zoom, Telegram, WhatsApp, NC Talk, SIP
