Catalog
Every x402, MPP, MCP, and skill listing we've indexed, normalized, and enriched.
Inaturalist
iNaturalist MCP — citizen-science species observations (free, no auth for read-only)
Greynoise
GreyNoise Community MCP — internet scanner classification (free tier with key)
Grants Gov
Grants.gov MCP — open federal grant opportunities (free, no auth)
Gleif
GLEIF MCP — Global Legal Entity Identifier Foundation (free, no auth)
Gdelt
GDELT MCP — Global Database of Events, Language, and Tone (free, no auth)
Etherscan
Etherscan MCP — multichain block-explorer API (Etherscan V2)
Companies House
Companies House MCP — UK statutory company registry (BYO key)
Brave Search
Brave Search MCP — independent web index (no Google/Bing dependency)
Arxiv
arXiv MCP — preprint server search (free, no auth)
Alienvault Otx
AlienVault OTX MCP — Open Threat Exchange (free with key)
Acled
ACLED MCP — Armed Conflict Location & Event Data Project
Sovereignty Scan
EU AI Act sovereignty scanning
Constellation Finance MCP (dev)
Financial data MCP via hosted streamable HTTP; OAuth for secure remote access.
MCP Verify
Trust, freshness, policy, and discovery layer for public MCP servers.
Easy8
Connect AI assistants to Easy8 — read and update projects, issues, and comments.
Aegis Gov Contracts
SAM.gov federal contracts: search, details, AI bid analysis
io.github.oneill9/tfl-mcp-server
Community-built server providing real-time London transport data via the TfL Unified API
m-dev-tools
MCP server wrapping the m-dev-tools catalog: route_intent, describe, verify.
Rails Agent Skills
Rails development skills, docs, and workflows exposed through MCP stdio.
io.github.hyperd-ai/hyperd-mcp
Pre-trade DeFi intelligence: 24 paid x402 tools incl
io.github.elibarnett/kie-mcp
MCP for kie.ai: 45+ image, 70+ video, 20+ audio models with model intelligence