"Signal" matching MCP servers:

Enables buyer-side spend-routing preflights before larger paid agent tool calls, with bounded planning and public-data evidence.

China hard-tech supply-chain intel as an MCP server — pre-registered, timestamped, falsifiable signal board covering semiconductors, solid-state batteries, eVTOL/low-altitude economy, and innovative drugs.

Provides MCP tools to query the phishunt.io phishing feed, enabling domain checks, brand-specific phishing lists, delta syncs, and phishing-signal analysis.

Search, verify and screen over 1 million African companies across 18 official government registries, along with the public contracts they have won and OFAC/UN sanctions screening. Every result carries its registry source, date and a confidence signal, and the server returns nulls rather than fabricating data.

Enables tracking and querying of vendor changelog entries, release notes, and product announcements, with tools to see recent changes, sweep for active accounts, and check feed coverage.

Enables domain overviews for security and sales, providing registration, infrastructure, and risk signal data through a simple API request.

The most comprehensive signal intelligence on Swiss businesses — 800K+ companies with people, FINMA/SRO regulatory data, building permits, procurement tenders, and AI-enriched profiles from the official commercial register.

One MCP server that gives AI agents nine live data tools — company hiring signals, SEC filings, academic papers, GitHub repos, Hacker News, Stack Overflow, clinical trials, Federal Register, and global news — all as flat, citation-ready JSON with pay-per-result billing.

A gravitational-wave detection pipeline combining lightweight signal-processing with an LLM triage layer, featuring a pre-registered evaluation harness that measures performance against synthetic injections in real detector noise.

MCP server providing SEC EDGAR signal intelligence — insider trading (Form 4), 13F holdings, filing velocity, activist risk flags, and multi-company comparisons. Already on the official MCP Registry, awesome-mcp-servers (PR #5664 pending), and Apify Store with three-tier pay-per-event pricing. MIT license, TypeScript, comprehensive README.

Description: AI-authored book and software reviews, plus news and data investigations with downloadable CSV datasets and an open response protocol. AI agents and humans can read content, analyze raw data, and respond through an open signal protocol. 9 tools, no auth.

Enables querying the openFDA drug adverse event database for pharmacovigilance work-ups: case searches, counts and demographic/outcome breakdowns, disproportionality measures (ROR/PRR with Mantel-Haenszel adjustment), and empirical Bayes (MGPS/EBGM) signal scores, including bulk screening and stratification by sex, age, or year alongside confounder-adjusted analyses.

al-time AI ecosystem intelligence for agents: 1,250+ classified AI security incidents, API pricing for 26 models across 7 providers, GPU cloud pricing, live provider status and cross-signal company analysis. No API key required.