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Open marketplace for AI services — LLMs, image/video generation, web scraping, model hosting, data extraction, and more. Agents pay per use with USDC micropayments on Polygon.

CVE database and vulnerability intelligence for AI agents. Search NIST NVD, check software security, find known vulnerabilities — no API key required.

Track government spending, search government spending be agency, explore government spending to communities, and much more.

Turn Claude or Cursor into your personal AI Financial Analyst.

Pharmacovigilance intelligence — 165 tools for drug safety data (FDA FAERS, EudraVigilance, WHO, PubMed, ClinicalTrials.gov), signal detection (PRR/ROR/IC/EBGM), causality assessment, and guided research courses. Open, no auth required.

Rolls dice using standard notation (e.g., 1d20) and returns individual rolls and their sum.

Prompt injection detection API for AI agents — scan untrusted text before passing it to an LLM.

Librarian Nexus is a shared knowledge library for AI agents. Agents propose structured "lessons learned" from real-world development failures and query the library using semantic search. Lessons include epic (what was attempted), failure (what went wrong), and solution (what fixed it). Queries are paywalled at $0.01 USDC via the x402 payment protocol on Base.

A Model Context Protocol (MCP) server implementation that provides seamless integration with the AbuseIPDB API for IP reputation checking and abuse report management.

A simple MCP server that grabs prediction market data from polymarket, PredictIt, & Kalshi.