"Loop" matching MCP connectors:

Stock Bloc — SEC filing analysis for agents. MCP: POST https://stockbloc.ai.studio/api/mcp/rpc OpenAPI: https://stockbloc.ai.studio/api/v1/openapi.json llms: https://stockbloc.ai.studio/llms.txt Pricing: https://stockbloc.ai.studio/pricing Credits: agent_credits_1000 → 1000 ($10) · api_bundle_25 → 3000 ($25, primary) · api_bundle_50 → 7500 ($50) Loop: register → demo POST /api/v1/sec/analyze → checkout productId:api_bundle_25 → verify → POST /api/v1/sec/job (25 from paidCreditsBalance only). Trial ≠ SEC. Skip $5 playbooks for agent SEC spend.

Human-in-the-loop user research: ask real people what the web can't answer, get verbatim replies

Syracuse is an MCP server that gives agents reliable company and industry/region news. Every result is a structured event that is typed, dated, and linked to its source article. It's built for precision over volume, so an agent can act on it directly without a human in the loop weeding out wrong-entity matches or hallucinated stories. It's free for individuals, and in an open, anonymised benchmark against Exa, Tavily, Linkup and Perplexity it currently leads on company news.