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Programmatic-advertising supply verification: ads.txt, schain, ATAP receipts, cross_lens_verify.
About
Programmatic-advertising supply verification: ads.txt, schain, ATAP receipts, cross_lens_verify.
Remote endpoints: streamable-http: https://mcp.sigil.tunnelmind.ai/mcp
Security Report
10.0
Low Risk10.0Low RiskValid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.
11 tools verified · Open access · 1 issue found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"ai-tunnelmind-sigil": {
"url": "https://mcp.sigil.tunnelmind.ai/mcp"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
sigil-mcp
MCP server for Sigil — TunnelMind's agentic supply-chain verification layer for programmatic advertising (P35).
Sigil ships as a separate MCP surface (P35 Shape B). One Cloudflare Worker, two hosts:
| Host | Serves |
|---|---|
mcp.sigil.tunnelmind.ai/mcp | Streamable-HTTP MCP endpoint (JSON-RPC 2.0) |
sigil.tunnelmind.ai/.well-known/mcp.json | Discovery card (mcp-server-card/1.0-draft) |
The Worker is a thin agent-facing wrapper: every tool proxies the live Sigil
API at data.tunnelmind.ai/v1/sigil/* over a Cloudflare service binding. The
Authorization header on an MCP request is forwarded — a paid TunnelMind key
gets its tier, anonymous callers get the free tier. Discovery is unauthenticated.
Tools
| Tool | Purpose |
|---|---|
cross_lens_verify | A2 — fused Scry × Sigil verdict on one node key (IP / domain / entity / ASN). The moat: both lenses, one answer. |
sigil_verify_supply_path | Composite pre-bid trust verdict + signed token |
sigil_verify_ads_txt | ads.txt seller-authorization check |
sigil_verify_ip_type | Datacenter / residential / mobile IP classification |
sigil_verify_app_bundle | App-store bundle-ID verification |
sigil_verify_supply_chain | Full OpenRTB SupplyChain (schain) verification |
sigil_score_entity | Pre-computed entity trust score + 14-day trend |
sigil_score_batch | Trust scores for up to 200 entities |
sigil_atap_register_ait | Register an ATAP AIT for a media-buyer agent |
sigil_atap_witness | Witness a bid/budget event into the attestation chain |
sigil_generate_receipt | Generate the ATAP compliance Receipt ZIP |
Published in the official MCP registry as ai.tunnelmind/sigil.
MCP methods: initialize, tools/list, tools/call, ping.
Develop
npm install # wrangler
npm test # tool-definition checks
npm run dev # local
npm run deploy # -> Cloudflare
Licence
MIT.
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