SigB (Signal Bureau): maintained, source-traced record of entities and events in your named domain.
64,037 MCP servers
Verified external-state intelligence for agents with corroborated evidence and ANSWER or WAIT.
330 production AI-agent services for data, validation, AI, crypto, and x402 pay-per-use.
Search Signed's public angel investor directory by sector, check size, or keyword. No login needed.
AI agents that watch DeFi positions: read a wallet report, draft agents for the owner to sign.
SigRank benchmark MCP: cascade metrics, leaderboard, operator profiles, simulation, diagnostics.
Choose files for an agent handoff using filename decisions. No file contents or credentials.
Semiconductor fabs, published forecasts and their restatements, each row naming its publisher.
Compares the provided data of a person in Mexico (CURP, name, birth, address) and returns the simila
Firm SGD quotes and delivery in Singapore for office and IT supplies, ink, toner and event print
SINTEGRA: ES, official-source lookup. Platform-hosted, pay per query with prepaid credit.
SipHash-4-8 hex length, input discarded
Pre-spend firewall for AI agents. Approves, blocks, flags transactions against policy rules.
Website traffic, DR growth and payment rankings; manage website and keyword favorites via OAuth.
Search the SiteGPT documentation: setup, features, API reference, troubleshooting.
EU-hosted website monitoring + 17-framework compliance MCP. One anonymous tool, four authenticated.
Check which AI crawlers a site allows and see pages the way AI crawlers do. Free, read-only.
Turn your artwork into a real custom skateboard deck, shown assembled in 3D, with a link to order.
Search a large 3D model library and download converted GLB/FBX/USDZ assets via signed URLs.
Let AI work in SketchUp: rooms, pro tagging, takeoff by room, model/design checks, scenes, Ruby.
Self-hosted MCP gateway and LLM proxy: OAuth 2.1, model aliases, Grok subscription as an API.