"OpenAI's Web Retrieval Infrastructure" matching MCP connectors:

30+ marketing data tools for AI agents: keywords, SERP, backlinks, AI visibility, app store & commerce intelligence, Reddit/LinkedIn/Facebook/YouTube research, web search, page extraction, site audit, image & video generation, one-shot marketing apps. Bring your own API key from supamarketers.com — per-tool pricing in Credits.

x402 cited web research and synthesis for agents. $1.99 per completed brief.

x402 page metadata for agents: OG, JSON-LD, canonical, robots. $0.01 per URL.

x402 web change detection and deterministic diffs for agents. $0.01 per comparison.

Secant Agent Research PackC

io.github.jnilrac

Paid MCP web research for agents: search, extraction, citations, and x402 payment discovery.