Sigil

Built for AI agents that need to verify programmatic advertising supply chains before trusting bid requests. Exposes nine tools that hit TunnelMind's live Sigil API: check ads.txt authorization, validate OpenRTB supply chain objects, classify IP types (datacenter vs. residential), verify app bundles, and score entity trustworthiness. The cross_lens_verify tool fuses data from TunnelMind's Scry and Sigil datasets for a combined verdict on domains, IPs, or ASNs. Also includes ATAP attestation tools to register identifiers, witness bid events, and generate compliance receipts. Auth is pass-through: your TunnelMind API key determines rate limits, or hit the free tier anonymously. Runs as a Cloudflare Worker proxying data.tunnelmind.ai.