Catalog
Every x402, MPP, MCP, and skill listing we've indexed, normalized, and enriched.
Unpaywall
Unpaywall MCP — open-access lookup for scholarly papers (free, no key)
Permid
PermID MCP — Refinitiv / LSEG Permanent Identifier (free, requires API key)
Owid
OWID MCP — Our World in Data chart/indicator access (free, no auth)
Oecd
OECD MCP — Organisation for Economic Co-operation and Development data
Nsf Awards
NSF Awards MCP — National Science Foundation award database (free, no auth)
Nih Reporter
NIH RePORTER MCP — every NIH-funded research project (free, no auth)
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.