io.github.cyanheads/fbi-crime-mcp-server

FBI Crime Data Explorer — UCR estimates, NIBRS breakdowns, hate crimes, arrests, and agency data.

io.github.cyanheads/college-scorecard-mcp-server

Search, compare, and analyze U.S. college data — costs, earnings, programs, and outcomes.

io.github.DigbyO/colour-memory

Cultural color intelligence. Every colour anchored to a person, a year, and a consequence.

io.github.shaozhengkun123/yarrow

I-Ching (周易) oracle: cast a hexagram, read classical commentary, get a reflection. Bilingual.

io.github.JcJamet/ia-qa-toolbox

130+ QA & dev tools for AI agents: prompt injection, RAG testing, VLM eval, guardrails. Free.

ai.butlerbrain/mcp

Persistent memory for AI assistants. Save once; recall from Claude, ChatGPT, or any MCP client.

io.github.nikhilgogulwar/universalbench

AI infrastructure for your agent � code, search, GitHub, databases, LLM calls. Free tier.

io.github.cyanheads/uspto-mcp-server

Search USPTO patent applications, PTAB trial proceedings, and petition decisions.

io.github.holiday-forever/holiday-forever-2

Interactive photo gallery widget for a single Airbnb listing with price, rating, and link.

io.github.1clickreport/mcp

40 tools for marketing analytics, campaign management, and AI monitoring across 6 platforms.

ai.xr-utilities/h-index

Capability registry for the agentic economy. Semantic search over verified MCP server listings.

io.github.Zman504/conductor-relay-mcp

Hosted MCP for Conductor Relay: a verifier-backed agent work exchange and cold marketplace.

com.varynforge/server

SEO research SaaS exposed as 30+ MCP tools. Forge niche analysis, plans, and writer-ready briefs.

io.github.LarryLemonBot/signal-desk

Low-cost decision layer before high-stakes agent-tool spend.

io.github.LarryLemonBot/gatecheck

Preflight checks for paid x402 and MCP tools before marketplace listing.

io.github.LarryLemonBot/resultrail

Pay-per-success public data result packs for AI agents.

com.kapruka/kapruka-mcp

Free public MCP server for Kapruka.com — Sri Lanka's largest e-commerce platform.

io.heldly/scheduler

AI-native scheduler that lives in Claude. Describe meetings in plain English; Heldly does the rest.

com.potomacledger/trades

Stock trades of U.S. Congress & executive-branch officials, with conflict flags. Read-only.

io.github.domdomegg/gmail-mcp

Allow AI systems to read, send, archive, and manage emails via Gmail.

io.github.domdomegg/google-contacts-mcp

Allow AI systems to list, search, and manage contacts via Google Contacts.

io.github.domdomegg/google-sheets-mcp

Allow AI systems to read, write, and query spreadsheet data via Google Sheets.

io.github.domdomegg/google-cal-mcp

Allow AI systems to list, create, update, and manage Google Calendar events.

io.github.domdomegg/google-drive-mcp

Allow AI systems to list, search, upload, download, and manage files and folders in Google Drive.