MCP servers for Perplexity

MCP server for global research grant databases (NSF, ERC, KRF). Runs locally via stdio or hosted on Smithery via StreamableHTTP.

Grantd MCP server: let your AI agent act on a user's behalf across third-party APIs via OAuth.

Persistent knowledge-graph memory for AI agents, with local semantic search. No API keys.

x402 payment verification: safe-to-pay preflight, on-chain receipt proof, OFAC/scam wallet screen

MCP Server for Hacker News

Give AI agents real-world capabilities via MCP — email, phone, wallet, payments, virtual cards, and more

MCP server for Harness FME (Split.io) — read and toggle feature flags.

An MCP server that exposes hashlib functionality

MCP Server for Hearthstone deck parsing and card information retrieval with stdio, SSE and HTTP support

Usage-adaptive Obsidian vault search: Hebbian + PageRank + BM25 hybrid ranking.

MCP server for the Hermes Atlas ecosystem directory — discover tools, skills, plugins, and integrations for Hermes Agent

MCP server for Grocy household ERP inventory and shopping workflows.

MCP server wrapping the Hertwill dropshipping API for AI agent product sourcing

MCP server for Hootsuite API integration

MCP server for hou-tea.com — browse, recommend, and buy authentic Chinese tea via x402 USDC payments. Designed for Claude Desktop, Cursor

Human fallback for AI agents: delegate tasks to a human over MCP.

MCP server for Humbl.ai advert data — 7 tools for ad research and PPC analysis

Judge hardware timing/serial against a contract: pass/marginal/fail (WS2812, DShot, logs)

Hyper Mcp Browser is an MCP server that runs on your own machine, started by your client over stdio.

A Model Context Protocol server

Search and inspect 6,500+ curated AI apps from the HyperStore directory.