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sigil-mcp

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sigil-mcp

Part of TunnelMind — the intelligence layer agents call before they trust the internet. Three lenses on one signed corpus: Scry (who is attacking?) · Sigil (who can you trust?) · Tracker Data API (who is watching?). This repo serves: Sigil — the MCP-tool surface agents call to verify ad-tech supply paths. See tunnelmind.ai.

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.

Related MCP server: attest-mcp-server

Develop

npm install      # wrangler
npm test         # tool-definition checks
npm run dev      # local
npm run deploy   # -> Cloudflare

License

Apache-2.0.

This server cannot be installed

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license - not found
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quality - not tested
B
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity

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